2187 lines
74 KiB
Plaintext
2187 lines
74 KiB
Plaintext
dnl
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dnl Initialize configure bits.
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dnl
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dnl GLIBCPP_CONFIGURE
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AC_DEFUN(GLIBCPP_CONFIGURE, [
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dnl Default to --enable-multilib
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AC_ARG_ENABLE(multilib,
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[ --enable-multilib build hella library versions (default)],
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[case "${enableval}" in
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yes) multilib=yes ;;
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no) multilib=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
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esac], [multilib=yes])dnl
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# When building with srcdir == objdir, links to the source files will
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# be created in directories within the target_subdir. We have to
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# adjust toplevel_srcdir accordingly, so that configure finds
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# install-sh and other auxiliary files that live in the top-level
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# source directory.
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if test "${srcdir}" = "."; then
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if test -z "${with_target_subdir}"; then
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toprel=".."
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else
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if test "${with_target_subdir}" != "."; then
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toprel="${with_multisrctop}../.."
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else
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toprel="${with_multisrctop}.."
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fi
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fi
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else
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toprel=".."
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fi
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AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
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toplevel_srcdir=\${top_srcdir}/$toprel
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AC_SUBST(toplevel_srcdir)
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# Export build and source directories.
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# These need to be absolute paths, yet at the same time need to
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# canonicalize only relative paths, because then amd will not unmount
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# drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
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glibcpp_builddir=`pwd`
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case $srcdir in
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[\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
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*) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
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esac
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AC_SUBST(glibcpp_builddir)
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AC_SUBST(glibcpp_srcdir)
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dnl This is here just to satisfy automake.
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ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
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AC_PROG_AWK
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# Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.5x, can also
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# be 'cp -p' if linking isn't available.
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#ac_cv_prog_LN_S='cp -p'
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AC_PROG_LN_S
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# We use these options to decide which functions to include.
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AC_ARG_WITH(target-subdir,
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[ --with-target-subdir=SUBDIR
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configuring in a subdirectory])
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AC_ARG_WITH(cross-host,
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[ --with-cross-host=HOST configuring with a cross compiler])
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glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
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AC_SUBST(glibcpp_basedir)
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# Never versions of autoconf add an underscore to these functions.
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# Prevent future problems ...
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ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
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ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
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ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
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ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
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# AC_PROG_CC
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# FIXME: We temporarily define our own version of AC_PROG_CC. This is
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# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
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# are probably using a cross compiler, which will not be able to fully
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# link an executable. This is addressed in later versions of autoconf.
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AC_DEFUN(LIB_AC_PROG_CC,
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[AC_BEFORE([$0], [AC_PROG_CPP])dnl
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dnl Fool anybody using AC_PROG_CC.
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AC_PROVIDE([AC_PROG_CC])
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AC_CHECK_PROG(CC, gcc, gcc)
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if test -z "$CC"; then
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AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
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test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
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fi
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AC_PROG_CC_GNU
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if test $ac_cv_prog_gcc = yes; then
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GCC=yes
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dnl Check whether -g works, even if CFLAGS is set, in case the package
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dnl plays around with CFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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ac_test_CFLAGS="${CFLAGS+set}"
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ac_save_CFLAGS="$CFLAGS"
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CFLAGS=
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AC_PROG_CC_G
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if test "$ac_test_CFLAGS" = set; then
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CFLAGS="$ac_save_CFLAGS"
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elif test $ac_cv_prog_cc_g = yes; then
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CFLAGS="-g -O2"
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else
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CFLAGS="-O2"
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fi
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else
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GCC=
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test "${CFLAGS+set}" = set || CFLAGS="-g"
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fi
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])
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LIB_AC_PROG_CC
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|
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# Likewise for AC_PROG_CXX. We can't just call it directly because g++
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# will try to link in libstdc++.
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AC_DEFUN(LIB_AC_PROG_CXX,
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[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
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dnl Fool anybody using AC_PROG_CXX.
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AC_PROVIDE([AC_PROG_CXX])
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# Use glibcpp_CXX so that we do not cause CXX to be cached with the
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# flags that come in CXX while configuring libstdc++. They're different
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# from those used for all other target libraries. If CXX is set in
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# the environment, respect that here.
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glibcpp_CXX=$CXX
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AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
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AC_SUBST(glibcpp_CXX)
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CXX=$glibcpp_CXX
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test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
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AC_PROG_CXX_GNU
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if test $ac_cv_prog_gxx = yes; then
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GXX=yes
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dnl Check whether -g works, even if CXXFLAGS is set, in case the package
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dnl plays around with CXXFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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ac_test_CXXFLAGS="${CXXFLAGS+set}"
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ac_save_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS=
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AC_PROG_CXX_G
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if test "$ac_test_CXXFLAGS" = set; then
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CXXFLAGS="$ac_save_CXXFLAGS"
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elif test $ac_cv_prog_cxx_g = yes; then
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CXXFLAGS="-g -O2"
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||
else
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CXXFLAGS="-O2"
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fi
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||
else
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GXX=
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test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
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fi
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])
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||
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LIB_AC_PROG_CXX
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# For some reason, gettext needs this.
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AC_ISC_POSIX
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AC_CHECK_TOOL(AS, as)
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AC_CHECK_TOOL(AR, ar)
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AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
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AC_PROG_INSTALL
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AM_MAINTAINER_MODE
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||
|
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# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
|
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# at least currently, we never actually build a program, so we never
|
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# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
|
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# fails, because we are probably configuring with a cross compiler
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# which can't create executables. So we include AC_EXEEXT to keep
|
||
# automake happy, but we don't execute it, since we don't care about
|
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# the result.
|
||
if false; then
|
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# autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
|
||
# to nothing, so nothing would remain between `then' and `fi' if it
|
||
# were not for the `:' below.
|
||
:
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AC_EXEEXT
|
||
fi
|
||
|
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. [$]{glibcpp_basedir}/configure.host
|
||
|
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case [$]{glibcpp_basedir} in
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/* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
|
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*) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
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||
esac
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||
|
||
# This does for the target what configure.host does for the host. In
|
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# addition to possibly modifying the same flags, it also sets up symlinks.
|
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GLIBCPP_CHECK_TARGET
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||
|
||
])
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||
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dnl
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dnl Check to see if g++ can compile this library, and if so, if any version-
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dnl specific precautions need to be taken.
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dnl
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dnl GLIBCPP_CHECK_COMPILER_VERSION
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AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
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if test ! -f stamp-sanity-compiler; then
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AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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AC_TRY_COMPILE(, [
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#if __GNUC__ < 3
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not_ok
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#endif
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], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above]))
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AC_LANG_RESTORE
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AC_MSG_RESULT($gpp_satisfactory)
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touch stamp-sanity-compiler
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fi
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])
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||
|
||
|
||
dnl
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dnl Tests for newer compiler features, or features that are present in newer
|
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dnl compiler versions but not older compiler versions still in use, should
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dnl be placed here.
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dnl
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dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
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dnl new inlining code or the new system_header pragma will die on -Werror.
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dnl Leave it out by default and use maint-mode to use it.
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dnl
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dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
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dnl compiler supports it and the user has not requested debug mode.
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dnl
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dnl GLIBCPP_CHECK_COMPILER_FEATURES
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AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
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# All these tests are for C++; save the language and the compiler flags.
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# The CXXFLAGS thing is suspicious, but based on similar bits previously
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# found in GLIBCPP_CONFIGURE.
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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ac_test_CXXFLAGS="${CXXFLAGS+set}"
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ac_save_CXXFLAGS="$CXXFLAGS"
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||
|
||
# Check for maintainer-mode bits.
|
||
if test x"$USE_MAINTAINER_MODE" = xno; then
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WERROR=''
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||
else
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WERROR='-Werror'
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||
fi
|
||
|
||
# Check for -ffunction-sections -fdata-sections
|
||
AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
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CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
|
||
AC_TRY_COMPILE(, [int foo;
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||
], [ac_fdsections=yes], [ac_fdsections=no])
|
||
if test "$ac_test_CXXFLAGS" = set; then
|
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CXXFLAGS="$ac_save_CXXFLAGS"
|
||
else
|
||
# this is the suspicious part
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||
CXXFLAGS=''
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||
fi
|
||
if test x"$ac_fdsections" = x"yes" &&
|
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test x"$enable_debug" = x"no"; then
|
||
SECTION_FLAGS='-ffunction-sections -fdata-sections'
|
||
fi
|
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AC_MSG_RESULT($ac_fdsections)
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||
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||
AC_LANG_RESTORE
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||
AC_SUBST(WERROR)
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||
AC_SUBST(SECTION_FLAGS)
|
||
])
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||
|
||
|
||
dnl
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||
dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
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dnl the native linker is in use, all variables will be defined to something
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dnl safe (like an empty string).
|
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dnl
|
||
dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
|
||
dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
|
||
dnl Define LD, with_gnu_ld, and (possibly) glibcpp_gnu_ld_version as
|
||
dnl side-effects of testing.
|
||
dnl
|
||
dnl GLIBCPP_CHECK_LINKER_FEATURES
|
||
AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
|
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# If we're not using GNU ld, then there's no point in even trying these
|
||
# tests. Check for that first. We should have already tested for gld
|
||
# by now (in libtool), but require it now just to be safe...
|
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test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
|
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test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
|
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AC_REQUIRE([AC_PROG_LD])
|
||
|
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# The name set by libtool depends on the version of libtool. Shame on us
|
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# for depending on an impl detail, but c'est la vie. Older versions used
|
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# ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
|
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# top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
|
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# makes sense). We'll test with_gnu_ld everywhere else, so if that isn't
|
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# set (hence we're using an older libtool), then set it.
|
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if test x${with_gnu_ld+set} != xset; then
|
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if test x${ac_cv_prog_gnu_ld+set} != xset; then
|
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# We got through "ac_require(ac_prog_ld)" and still not set? Huh?
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||
with_gnu_ld=no
|
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else
|
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with_gnu_ld=$ac_cv_prog_gnu_ld
|
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fi
|
||
fi
|
||
|
||
# Start by getting the version number. I think the libtool test already
|
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# does some of this, but throws away the result.
|
||
changequote(,)
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ldver=`$LD --version 2>/dev/null | head -1 | \
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sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
|
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changequote([,])
|
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glibcpp_gnu_ld_version=`echo $ldver | \
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$AWK -F. '{ if (NF<3) [$]3=0; print ([$]1*100+[$]2)*100+[$]3 }'`
|
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|
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# Set --gc-sections.
|
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if test "$with_gnu_ld" = "notbroken"; then
|
||
# GNU ld it is! Joy and bunny rabbits!
|
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|
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# All these tests are for C++; save the language and the compiler flags.
|
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# Need to do this so that g++ won't try to link in libstdc++
|
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ac_test_CFLAGS="${CFLAGS+set}"
|
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ac_save_CFLAGS="$CFLAGS"
|
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CFLAGS='-x c++ -Wl,--gc-sections'
|
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|
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# Check for -Wl,--gc-sections
|
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# XXX This test is broken at the moment, as symbols required for
|
||
# linking are now in libsupc++ (not built yet.....). In addition,
|
||
# this test has cored on solaris in the past. In addition,
|
||
# --gc-sections doesn't really work at the moment (keeps on discarding
|
||
# used sections, first .eh_frame and now some of the glibc sections for
|
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# iconv). Bzzzzt. Thanks for playing, maybe next time.
|
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AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
|
||
AC_TRY_RUN([
|
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int main(void)
|
||
{
|
||
try { throw 1; }
|
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catch (...) { };
|
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return 0;
|
||
}
|
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], [ac_sectionLDflags=yes],[ac_sectionLDflags=no], [ac_sectionLDflags=yes])
|
||
if test "$ac_test_CFLAGS" = set; then
|
||
CFLAGS="$ac_save_CFLAGS"
|
||
else
|
||
# this is the suspicious part
|
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CFLAGS=''
|
||
fi
|
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if test "$ac_sectionLDflags" = "yes"; then
|
||
SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
|
||
fi
|
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AC_MSG_RESULT($ac_sectionLDflags)
|
||
fi
|
||
|
||
# Set linker optimization flags.
|
||
if test x"$with_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; then
|
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OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
|
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fi
|
||
|
||
AC_SUBST(SECTION_LDFLAGS)
|
||
AC_SUBST(OPT_LDFLAGS)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if the (math function) argument passed is
|
||
dnl declared when using the c++ compiler
|
||
dnl ASSUMES argument is a math function with ONE parameter
|
||
dnl
|
||
dnl GLIBCPP_CHECK_MATH_DECL_1
|
||
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcpp_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>
|
||
#ifdef HAVE_IEEEFP_H
|
||
#include <ieeefp.h>
|
||
#endif
|
||
],
|
||
[ $1(0);],
|
||
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
|
||
])
|
||
|
||
dnl
|
||
dnl Check to see if the (math function) argument passed is
|
||
dnl 1) declared when using the c++ compiler
|
||
dnl 2) has "C" linkage
|
||
dnl 3) if not, see if 1) and 2) for argument prepended with '_'
|
||
dnl
|
||
dnl Define HAVE_CARGF etc if "cargf" is declared and links
|
||
dnl
|
||
dnl argument 1 is name of function to check
|
||
dnl
|
||
dnl ASSUMES argument is a math function with ONE parameter
|
||
dnl
|
||
dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
|
||
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
|
||
GLIBCPP_CHECK_MATH_DECL_1($1)
|
||
if test x$glibcpp_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
else
|
||
GLIBCPP_CHECK_MATH_DECL_1(_$1)
|
||
if test x$glibcpp_cv_func__$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS(_$1)
|
||
fi
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
|
||
dnl of functions at once. It's an all-or-nothing check -- either
|
||
dnl HAVE_XYZ is defined for each of the functions, or for none of them.
|
||
dnl Doing it this way saves significant configure time.
|
||
AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
|
||
AC_MSG_CHECKING([for $1 functions])
|
||
AC_CACHE_VAL(glibcpp_cv_func_$2_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[ `for x in $3; do echo "$x (0);"; done` ],
|
||
[glibcpp_cv_func_$2_use=yes],
|
||
[glibcpp_cv_func_$2_use=no])
|
||
AC_LANG_RESTORE])
|
||
AC_MSG_RESULT($glibcpp_cv_func_$2_use)
|
||
if test x$glibcpp_cv_func_$2_use = x"yes"; then
|
||
AC_CHECK_FUNCS($3)
|
||
fi
|
||
])
|
||
|
||
dnl
|
||
dnl Check to see if the (math function) argument passed is
|
||
dnl declared when using the c++ compiler
|
||
dnl ASSUMES argument is a math function with TWO parameters
|
||
dnl
|
||
dnl GLIBCPP_CHECK_MATH_DECL_2
|
||
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcpp_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[ $1(0, 0);],
|
||
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
|
||
])
|
||
|
||
dnl
|
||
dnl Check to see if the (math function) argument passed is
|
||
dnl 1) declared when using the c++ compiler
|
||
dnl 2) has "C" linkage
|
||
dnl
|
||
dnl Define HAVE_CARGF etc if "cargf" is declared and links
|
||
dnl
|
||
dnl argument 1 is name of function to check
|
||
dnl
|
||
dnl ASSUMES argument is a math function with TWO parameters
|
||
dnl
|
||
dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
|
||
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
|
||
GLIBCPP_CHECK_MATH_DECL_2($1)
|
||
if test x$glibcpp_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
else
|
||
GLIBCPP_CHECK_MATH_DECL_2(_$1)
|
||
if test x$glibcpp_cv_func__$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS(_$1)
|
||
fi
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if the (math function) argument passed is
|
||
dnl declared when using the c++ compiler
|
||
dnl ASSUMES argument is a math function with THREE parameters
|
||
dnl
|
||
dnl GLIBCPP_CHECK_MATH_DECL_3
|
||
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcpp_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[ $1(0, 0, 0);],
|
||
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
|
||
])
|
||
|
||
dnl
|
||
dnl Check to see if the (math function) argument passed is
|
||
dnl 1) declared when using the c++ compiler
|
||
dnl 2) has "C" linkage
|
||
dnl
|
||
dnl Define HAVE_CARGF etc if "cargf" is declared and links
|
||
dnl
|
||
dnl argument 1 is name of function to check
|
||
dnl
|
||
dnl ASSUMES argument is a math function with THREE parameters
|
||
dnl
|
||
dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
|
||
AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
|
||
GLIBCPP_CHECK_MATH_DECL_3($1)
|
||
if test x$glibcpp_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
else
|
||
GLIBCPP_CHECK_MATH_DECL_3(_$1)
|
||
if test x$glibcpp_cv_func__$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS(_$1)
|
||
fi
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if the (stdlib function) argument passed is
|
||
dnl 1) declared when using the c++ compiler
|
||
dnl 2) has "C" linkage
|
||
dnl
|
||
dnl argument 1 is name of function to check
|
||
dnl
|
||
dnl ASSUMES argument is a math function with TWO parameters
|
||
dnl
|
||
dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2
|
||
AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcpp_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[ $1(0, 0);],
|
||
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
|
||
if test x$glibcpp_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if the (stdlib function) argument passed is
|
||
dnl 1) declared when using the c++ compiler
|
||
dnl 2) has "C" linkage
|
||
dnl
|
||
dnl argument 1 is name of function to check
|
||
dnl
|
||
dnl ASSUMES argument is a function with THREE parameters
|
||
dnl
|
||
dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3
|
||
AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcpp_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[ $1(0, 0, 0);],
|
||
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
|
||
if test x$glibcpp_cv_func_$1_use = x"yes"; then
|
||
AC_CHECK_FUNCS($1)
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Because the builtins are picky picky picky about the arguments they take,
|
||
dnl do an explict linkage tests here.
|
||
dnl Check to see if the (math function) argument passed is
|
||
dnl 1) declared when using the c++ compiler
|
||
dnl 2) has "C" linkage
|
||
dnl
|
||
dnl Define HAVE_CARGF etc if "cargf" is declared and links
|
||
dnl
|
||
dnl argument 1 is name of function to check
|
||
dnl
|
||
dnl ASSUMES argument is a math function with ONE parameter
|
||
dnl
|
||
dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
|
||
AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
|
||
AC_MSG_CHECKING([for $1 declaration])
|
||
if test x${glibcpp_cv_func_$1_use+set} != xset; then
|
||
AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[ $1(0);],
|
||
[glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
|
||
AC_LANG_RESTORE
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcpp_cv_func_$1_use)
|
||
if test x$glibcpp_cv_func_$1_use = x"yes"; then
|
||
AC_MSG_CHECKING([for $1 linkage])
|
||
if test x${glibcpp_cv_func_$1_link+set} != xset; then
|
||
AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
|
||
AC_TRY_LINK([#include <math.h>],
|
||
[ $1(0);],
|
||
[glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
|
||
])
|
||
fi
|
||
AC_MSG_RESULT($glibcpp_cv_func_$1_link)
|
||
if test x$glibcpp_cv_func_$1_link = x"yes"; then
|
||
ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
|
||
AC_DEFINE_UNQUOTED(${ac_tr_func})
|
||
fi
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see what builtin math functions are supported
|
||
dnl
|
||
dnl check for __builtin_abs
|
||
dnl check for __builtin_fabsf
|
||
dnl check for __builtin_fabs
|
||
dnl check for __builtin_fabl
|
||
dnl check for __builtin_labs
|
||
dnl check for __builtin_sqrtf
|
||
dnl check for __builtin_sqrtl
|
||
dnl check for __builtin_sqrt
|
||
dnl check for __builtin_sinf
|
||
dnl check for __builtin_sin
|
||
dnl check for __builtin_sinl
|
||
dnl check for __builtin_cosf
|
||
dnl check for __builtin_cos
|
||
dnl check for __builtin_cosl
|
||
dnl
|
||
dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
|
||
AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
|
||
dnl Test for builtin math functions.
|
||
dnl These are made in gcc/c-common.c
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
|
||
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrt)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
|
||
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
|
||
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
|
||
GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
|
||
|
||
dnl There is, without a doubt, a more elegant way to have these
|
||
dnl names exported so that they won't be stripped out of acconfig.h by
|
||
dnl autoheader. I leave this as an exercise to somebody less frustrated
|
||
dnl than I.... please email the libstdc++ list if you can figure out a
|
||
dnl more elegant approach (see autoconf/acgen.m4 and specifically
|
||
dnl AC_CHECK_FUNC for things to steal.)
|
||
dummyvar=no
|
||
if test x$dummyvar = x"yes"; then
|
||
AC_DEFINE(HAVE___BUILTIN_ABS)
|
||
AC_DEFINE(HAVE___BUILTIN_LABS)
|
||
AC_DEFINE(HAVE___BUILTIN_COS)
|
||
AC_DEFINE(HAVE___BUILTIN_COSF)
|
||
AC_DEFINE(HAVE___BUILTIN_COSL)
|
||
AC_DEFINE(HAVE___BUILTIN_FABS)
|
||
AC_DEFINE(HAVE___BUILTIN_FABSF)
|
||
AC_DEFINE(HAVE___BUILTIN_FABSL)
|
||
AC_DEFINE(HAVE___BUILTIN_SIN)
|
||
AC_DEFINE(HAVE___BUILTIN_SINF)
|
||
AC_DEFINE(HAVE___BUILTIN_SINL)
|
||
AC_DEFINE(HAVE___BUILTIN_SQRT)
|
||
AC_DEFINE(HAVE___BUILTIN_SQRTF)
|
||
AC_DEFINE(HAVE___BUILTIN_SQRTL)
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see what the underlying c library
|
||
dnl These checks need to do two things:
|
||
dnl 1) make sure the name is declared when using the c++ compiler
|
||
dnl 2) make sure the name has "C" linkage
|
||
dnl This might seem like overkill but experience has shown that it's not...
|
||
dnl
|
||
dnl Define HAVE_STRTOLD if "strtold" is declared and links
|
||
dnl Define HAVE_STRTOF if "strtof" is declared and links
|
||
dnl Define HAVE_DRAND48 if "drand48" is declared and links
|
||
dnl
|
||
dnl GLIBCPP_CHECK_STDLIB_SUPPORT
|
||
AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
|
||
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
||
ac_save_CXXFLAGS="$CXXFLAGS"
|
||
CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
|
||
|
||
GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
|
||
GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
|
||
AC_CHECK_FUNCS(drand48)
|
||
|
||
CXXFLAGS="$ac_save_CXXFLAGS"
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see what the underlying c library or math library is like.
|
||
dnl These checks need to do two things:
|
||
dnl 1) make sure the name is declared when using the c++ compiler
|
||
dnl 2) make sure the name has "C" linkage
|
||
dnl This might seem like overkill but experience has shown that it's not...
|
||
dnl
|
||
dnl Define HAVE_CARGF etc if "cargf" is found.
|
||
dnl
|
||
dnl GLIBCPP_CHECK_MATH_SUPPORT
|
||
AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
|
||
ac_test_CXXFLAGS="${CXXFLAGS+set}"
|
||
ac_save_CXXFLAGS="$CXXFLAGS"
|
||
CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
|
||
|
||
dnl Check libm
|
||
AC_CHECK_LIB(m, sin, libm="-lm")
|
||
ac_save_LIBS="$LIBS"
|
||
LIBS="$LIBS $libm"
|
||
|
||
dnl Check to see if certain C math functions exist.
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
|
||
|
||
dnl Check to see if basic C math functions have float versions.
|
||
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
|
||
float_trig,
|
||
acosf asinf atanf \
|
||
cosf sinf tanf \
|
||
coshf sinhf tanhf)
|
||
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
|
||
float_round,
|
||
ceilf floorf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
|
||
|
||
dnl Check to see if basic C math functions have long double versions.
|
||
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
|
||
long_double_trig,
|
||
acosl asinl atanl \
|
||
cosl sinl tanl \
|
||
coshl sinhl tanhl)
|
||
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
|
||
long_double_round,
|
||
ceill floorl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
|
||
GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
|
||
|
||
dnl Some runtimes have these functions with a preceding underscore. Please
|
||
dnl keep this sync'd with the one above. And if you add any new symbol,
|
||
dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
|
||
dnl Check to see if certain C math functions exist.
|
||
|
||
dnl Check to see if basic C math functions have float versions.
|
||
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
|
||
_float_trig,
|
||
_acosf _asinf _atanf \
|
||
_cosf _sinf _tanf \
|
||
_coshf _sinhf _tanhf)
|
||
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
|
||
_float_round,
|
||
_ceilf _floorf)
|
||
|
||
dnl Check to see if basic C math functions have long double versions.
|
||
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
|
||
_long_double_trig,
|
||
_acosl _asinl _atanl \
|
||
_cosl _sinl _tanl \
|
||
_coshl _sinhl _tanhl)
|
||
GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
|
||
_long_double_round,
|
||
_ceill _floorl)
|
||
|
||
LIBS="$ac_save_LIBS"
|
||
CXXFLAGS="$ac_save_CXXFLAGS"
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if there is native support for complex
|
||
dnl
|
||
dnl Don't compile bits in math/* if native support exits.
|
||
dnl
|
||
dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
|
||
dnl
|
||
dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
|
||
AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
|
||
dnl Check for complex versions of math functions of platform.
|
||
AC_CHECK_LIB(m, main)
|
||
AC_REPLACE_MATHFUNCS(nan copysignf)
|
||
|
||
dnl For __signbit to signbit conversions.
|
||
AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"])
|
||
AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"])
|
||
|
||
dnl Compile the long double complex functions only if the function
|
||
dnl provides the non-complex long double functions that are needed.
|
||
dnl Currently this includes copysignl, which should be
|
||
dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
|
||
if test x$ac_cv_func_copysignl = x"yes"; then
|
||
AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
|
||
fi
|
||
|
||
AC_SUBST(LIBMATHOBJS)
|
||
])
|
||
|
||
|
||
dnl Check to see what architecture and operating system we are compiling
|
||
dnl for. Also, if architecture- or OS-specific flags are required for
|
||
dnl compilation, pick them up here.
|
||
dnl
|
||
dnl GLIBCPP_CHECK_TARGET
|
||
AC_DEFUN(GLIBCPP_CHECK_TARGET, [
|
||
. [$]{glibcpp_basedir}/configure.target
|
||
AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
|
||
AC_MSG_RESULT(OS config directory is $os_include_dir)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check to see if this target can enable the wchar_t parts of libstdc++.
|
||
dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
|
||
dnl must have been previously checked.)
|
||
dnl
|
||
dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
|
||
dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
|
||
dnl
|
||
dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
|
||
AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
|
||
|
||
dnl Test wchar.h for mbstate_t, which is needed for char_traits and
|
||
dnl others even if wchar_t support is not on.
|
||
AC_MSG_CHECKING([for mbstate_t])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[mbstate_t teststate;],
|
||
have_mbstate_t=yes, have_mbstate_t=no)
|
||
AC_MSG_RESULT($have_mbstate_t)
|
||
if test x"$have_mbstate_t" = xyes; then
|
||
AC_DEFINE(HAVE_MBSTATE_T)
|
||
fi
|
||
|
||
dnl Sanity check for existence of ISO C99 headers for extended encoding.
|
||
AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
|
||
AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
|
||
|
||
dnl Only continue checking if the ISO C99 headers exist and support is on.
|
||
if test x"$ac_has_wchar_h" = xyes &&
|
||
test x"$ac_has_wctype_h" = xyes &&
|
||
test x"$enable_c_mbchar" != xno; then
|
||
|
||
dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
|
||
dnl numeric_limits can instantiate type_traits<wchar_t>
|
||
AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[int i = WCHAR_MIN; int j = WCHAR_MAX;],
|
||
has_wchar_minmax=yes, has_wchar_minmax=no)
|
||
AC_MSG_RESULT($has_wchar_minmax)
|
||
|
||
dnl Test wchar.h for WEOF, which is what we use to determine whether
|
||
dnl to specialize for char_traits<wchar_t> or not.
|
||
AC_MSG_CHECKING([for WEOF])
|
||
AC_TRY_COMPILE([
|
||
#include <wchar.h>
|
||
#include <stddef.h>],
|
||
[wint_t i = WEOF;],
|
||
has_weof=yes, has_weof=no)
|
||
AC_MSG_RESULT($has_weof)
|
||
|
||
dnl Tests for wide character functions used in char_traits<wchar_t>.
|
||
ac_wfuncs=yes
|
||
AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
|
||
ac_wfuncs=no)
|
||
|
||
dnl Checks for names injected into std:: by the c_std headers.
|
||
AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \
|
||
fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
|
||
vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
|
||
mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
|
||
wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
|
||
wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
|
||
ac_wfuncs=no)
|
||
|
||
AC_MSG_CHECKING([for ISO C99 wchar_t support])
|
||
if test x"$has_weof" = xyes &&
|
||
test x"$has_wchar_minmax" = xyes &&
|
||
test x"$ac_wfuncs" = xyes; then
|
||
ac_isoC99_wchar_t=yes
|
||
else
|
||
ac_isoC99_wchar_t=no
|
||
fi
|
||
AC_MSG_RESULT($ac_isoC99_wchar_t)
|
||
|
||
dnl Use iconv for wchar_t to char conversions. As such, check for
|
||
dnl X/Open Portability Guide, version 2 features (XPG2).
|
||
AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
|
||
AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
|
||
|
||
dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
|
||
AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
|
||
ac_save_LIBS="$LIBS"
|
||
LIBS="$LIBS $libiconv"
|
||
|
||
AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
|
||
ac_XPG2funcs=yes, ac_XPG2funcs=no)
|
||
|
||
LIBS="$ac_save_LIBS"
|
||
|
||
AC_MSG_CHECKING([for XPG2 wchar_t support])
|
||
if test x"$ac_has_iconv_h" = xyes &&
|
||
test x"$ac_has_langinfo_h" = xyes &&
|
||
test x"$ac_XPG2funcs" = xyes; then
|
||
ac_XPG2_wchar_t=yes
|
||
else
|
||
ac_XPG2_wchar_t=no
|
||
fi
|
||
AC_MSG_RESULT($ac_XPG2_wchar_t)
|
||
|
||
dnl At the moment, only enable wchar_t specializations if all the
|
||
dnl above support is present.
|
||
AC_MSG_CHECKING([for enabled wchar_t specializations])
|
||
if test x"$ac_isoC99_wchar_t" = xyes &&
|
||
test x"$ac_XPG2_wchar_t" = xyes; then
|
||
AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
|
||
AC_MSG_RESULT("yes")
|
||
else
|
||
AC_MSG_RESULT("no")
|
||
fi
|
||
else
|
||
dnl Wide characters disabled by the user.
|
||
AC_MSG_WARN([wchar_t support disabled.])
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for special debugging mode; not for production use.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_DEBUG
|
||
dnl --enable-debug sets '-ggdb3 -O0'.
|
||
dnl --disable-debug sets '-g' and whatever optimization options the
|
||
dnl compiler can handle.
|
||
dnl + --enable-maintainer-mode automatically defaults this to on.
|
||
dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
|
||
dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
||
dnl defaults to `no'.
|
||
AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
|
||
define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
AC_ARG_ENABLE(debug,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "${enableval}" in
|
||
yes) enable_debug=yes ;;
|
||
no) enable_debug=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
|
||
esac],
|
||
enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
|
||
|
||
dnl Option parsed, now set things appropriately
|
||
case "${enable_debug}" in
|
||
yes)
|
||
DEBUG_FLAGS='-O0 -ggdb3'
|
||
;;
|
||
no)
|
||
DEBUG_FLAGS='-g'
|
||
;;
|
||
esac
|
||
AC_SUBST(DEBUG_FLAGS)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for "unusual" flags to pass to the compiler while building.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_CXX_FLAGS
|
||
dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
|
||
dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
|
||
dnl Somehow this same set of flags must be passed when [re]building
|
||
dnl libgcc.
|
||
dnl --disable-cxx-flags passes nothing.
|
||
dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
|
||
dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
|
||
dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
|
||
dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
|
||
dnl If "default flags" is an empty string (or "none"), the effect is
|
||
dnl the same as --disable or --enable=no.
|
||
AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
|
||
define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
|
||
AC_ARG_ENABLE(cxx-flags,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
|
||
[default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "x$enableval" in
|
||
xyes)
|
||
AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
|
||
xno|x)
|
||
enable_cxx_flags='' ;;
|
||
*)
|
||
enable_cxx_flags="$enableval" ;;
|
||
esac],
|
||
enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')
|
||
|
||
dnl Thinko on my part during design. This kludge is the workaround.
|
||
if test "$enable_cxx_flags" = "none"; then
|
||
enable_cxx_flags='';
|
||
fi
|
||
|
||
dnl Run through flags (either default or command-line) and set anything
|
||
dnl extra (e.g., #defines) that must accompany particular g++ options.
|
||
if test -n "$enable_cxx_flags"; then
|
||
for f in $enable_cxx_flags; do
|
||
case "$f" in
|
||
-fhonor-std) ;;
|
||
-*) ;;
|
||
*) # and we're trying to pass /what/ exactly?
|
||
AC_MSG_ERROR([compiler flags start with a -]) ;;
|
||
esac
|
||
done
|
||
fi
|
||
EXTRA_CXX_FLAGS="$enable_cxx_flags"
|
||
AC_SUBST(EXTRA_CXX_FLAGS)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for which locale library to use: gnu or generic.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_CLOCALE
|
||
dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
|
||
dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
|
||
dnl
|
||
dnl default is generic
|
||
dnl
|
||
AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
|
||
AC_MSG_CHECKING([for clocale to use])
|
||
AC_ARG_ENABLE(clocale,
|
||
[ --enable-clocale enable model for target locale package.
|
||
--enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
|
||
],
|
||
if test x$enable_clocale = xno; then
|
||
enable_clocale=no
|
||
fi,
|
||
enable_clocale=no)
|
||
|
||
enable_clocale_flag=$enable_clocale
|
||
|
||
dnl Probe for locale support if no specific model is specified.
|
||
dnl Default to "generic"
|
||
if test x$enable_clocale_flag = xno; then
|
||
case x${target_os} in
|
||
xlinux* | xgnu*)
|
||
AC_EGREP_CPP([_GLIBCPP_ok], [
|
||
#include <features.h>
|
||
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
|
||
_GLIBCPP_ok
|
||
#endif
|
||
], enable_clocale_flag=gnu, enable_clocale_flag=generic)
|
||
|
||
# Test for bugs early in glibc-2.2.x series
|
||
if test x$enable_clocale_flag = xgnu; then
|
||
AC_TRY_RUN([
|
||
#define _GNU_SOURCE 1
|
||
#include <locale.h>
|
||
int main()
|
||
{
|
||
const char __one[] = "<22>uglein Augmen";
|
||
const char __two[] = "<22>uglein";
|
||
int i;
|
||
int j;
|
||
__locale_t loc;
|
||
__locale_t loc_dup;
|
||
loc = __newlocale(1 << LC_ALL, "de_DE", 0);
|
||
loc_dup = __duplocale(loc);
|
||
i = __strcoll_l(__one, __two, loc);
|
||
j = __strcoll_l(__one, __two, loc_dup);
|
||
return 0;
|
||
}
|
||
],
|
||
[enable_clocale_flag=gnu],[enable_clocale_flag=generic],
|
||
[enable_clocale_flag=generic])
|
||
fi
|
||
|
||
# ... at some point put __strxfrm_l tests in as well.
|
||
;;
|
||
*)
|
||
enable_clocale_flag=generic
|
||
;;
|
||
esac
|
||
fi
|
||
|
||
dnl Deal with gettext issues.
|
||
AC_ARG_ENABLE(nls,
|
||
[ --enable-nls use Native Language Support (default)],
|
||
, enable_nls=yes)
|
||
USE_NLS=no
|
||
|
||
dnl Set configure bits for specified locale package
|
||
case x${enable_clocale_flag} in
|
||
xgeneric)
|
||
AC_MSG_RESULT(generic)
|
||
|
||
CLOCALE_H=config/locale/generic/c_locale.h
|
||
CLOCALE_CC=config/locale/generic/c_locale.cc
|
||
CCODECVT_H=config/locale/generic/codecvt_specializations.h
|
||
CCOLLATE_CC=config/locale/generic/collate_members.cc
|
||
CCTYPE_CC=config/locale/generic/ctype_members.cc
|
||
CMESSAGES_H=config/locale/generic/messages_members.h
|
||
CMESSAGES_CC=config/locale/generic/messages_members.cc
|
||
CMONEY_CC=config/locale/generic/monetary_members.cc
|
||
CNUMERIC_CC=config/locale/generic/numeric_members.cc
|
||
CTIME_CC=config/locale/generic/time_members.cc
|
||
;;
|
||
xgnu)
|
||
AC_MSG_RESULT(gnu)
|
||
|
||
# Declare intention to use gettext, and add support for specific
|
||
# languages.
|
||
# For some reason, ALL_LINGUAS has to be before AM_GNU_GETTEXT
|
||
ALL_LINGUAS="de fr"
|
||
|
||
# Don't call AM_GNU_GETTEXT here. Instead, assume glibc.
|
||
AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
|
||
if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
|
||
USE_NLS=yes
|
||
fi
|
||
|
||
# Export the build objects.
|
||
for ling in $ALL_LINGUAS; do \
|
||
glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
|
||
glibcpp_POFILES="$glibcpp_POFILES $ling.po"; \
|
||
done
|
||
AC_SUBST(glibcpp_MOFILES)
|
||
AC_SUBST(glibcpp_POFILES)
|
||
|
||
CLOCALE_H=config/locale/gnu/c_locale.h
|
||
CLOCALE_CC=config/locale/gnu/c_locale.cc
|
||
CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
|
||
CCOLLATE_CC=config/locale/gnu/collate_members.cc
|
||
CCTYPE_CC=config/locale/gnu/ctype_members.cc
|
||
CMESSAGES_H=config/locale/gnu/messages_members.h
|
||
CMESSAGES_CC=config/locale/gnu/messages_members.cc
|
||
CMONEY_CC=config/locale/gnu/monetary_members.cc
|
||
CNUMERIC_CC=config/locale/gnu/numeric_members.cc
|
||
CTIME_CC=config/locale/gnu/time_members.cc
|
||
;;
|
||
xieee_1003.1-2001)
|
||
AC_MSG_RESULT(generic)
|
||
|
||
CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
|
||
CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
|
||
CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
|
||
CCOLLATE_CC=config/locale/generic/collate_members.cc
|
||
CCTYPE_CC=config/locale/generic/ctype_members.cc
|
||
CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
|
||
CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
|
||
CMONEY_CC=config/locale/generic/monetary_members.cc
|
||
CNUMERIC_CC=config/locale/generic/numeric_members.cc
|
||
CTIME_CC=config/locale/generic/time_members.cc
|
||
;;
|
||
*)
|
||
echo "$enable_clocale is an unknown locale package" 1>&2
|
||
exit 1
|
||
;;
|
||
esac
|
||
|
||
# This is where the testsuite looks for locale catalogs, using the
|
||
# -DLOCALEDIR define during testsuite compilation.
|
||
glibcpp_localedir=${glibcpp_builddir}/po/share/locale
|
||
AC_SUBST(glibcpp_localedir)
|
||
|
||
AC_SUBST(USE_NLS)
|
||
AC_SUBST(CLOCALE_H)
|
||
AC_SUBST(CCODECVT_H)
|
||
AC_SUBST(CMESSAGES_H)
|
||
AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc)
|
||
AC_LINK_FILES($CCOLLATE_CC, src/collate.cc)
|
||
AC_LINK_FILES($CCTYPE_CC, src/ctype.cc)
|
||
AC_LINK_FILES($CMESSAGES_CC, src/messages.cc)
|
||
AC_LINK_FILES($CMONEY_CC, src/monetary.cc)
|
||
AC_LINK_FILES($CNUMERIC_CC, src/numeric.cc)
|
||
AC_LINK_FILES($CTIME_CC, src/time.cc)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for which I/O library to use: libio, or something specific.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_CSTDIO
|
||
dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
|
||
dnl
|
||
dnl default is stdio
|
||
dnl
|
||
AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
|
||
AC_MSG_CHECKING([for cstdio to use])
|
||
AC_ARG_ENABLE(cstdio,
|
||
[ --enable-cstdio enable stdio for target io package.
|
||
--enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
|
||
],
|
||
if test x$enable_cstdio = xno; then
|
||
enable_cstdio=stdio
|
||
fi,
|
||
enable_cstdio=stdio)
|
||
|
||
enable_cstdio_flag=$enable_cstdio
|
||
|
||
dnl Check if a valid I/O package
|
||
case x${enable_cstdio_flag} in
|
||
xlibio)
|
||
CSTDIO_H=config/io/c_io_libio.h
|
||
BASIC_FILE_H=config/io/basic_file_libio.h
|
||
BASIC_FILE_CC=config/io/basic_file_libio.cc
|
||
AC_MSG_RESULT(libio)
|
||
|
||
# see if we are on a system with libio native (ie, linux)
|
||
AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
|
||
|
||
# Need to check and see what version of glibc is being used. If
|
||
# it's not glibc-2.2 or higher, then we'll need to go ahead and
|
||
# compile most of libio for linux systems.
|
||
if test x$has_libio = x"yes"; then
|
||
case "$target" in
|
||
*-*-linux*)
|
||
AC_MSG_CHECKING([for glibc version >= 2.2])
|
||
AC_EGREP_CPP([ok], [
|
||
#include <features.h>
|
||
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
|
||
ok
|
||
#endif
|
||
], glibc_satisfactory=yes, glibc_satisfactory=no)
|
||
AC_MSG_RESULT($glibc_satisfactory)
|
||
;;
|
||
esac
|
||
|
||
# XXX at the moment, admit defeat and force the recompilation
|
||
# XXX of glibc even on glibc-2.2 systems, because libio is not synched.
|
||
glibc_satisfactory=no
|
||
|
||
if test x$glibc_satisfactory = x"yes"; then
|
||
need_libio=no
|
||
need_wlibio=no
|
||
else
|
||
need_libio=yes
|
||
# bkoz XXX need to add checks to enable this
|
||
# pme XXX here's a first pass at such a check
|
||
if test x$enable_c_mbchar != xno; then
|
||
need_wlibio=yes
|
||
else
|
||
need_wlibio=no
|
||
fi
|
||
fi
|
||
|
||
else
|
||
# Using libio, but <libio.h> doesn't exist on the target system. . .
|
||
need_libio=yes
|
||
# bkoz XXX need to add checks to enable this
|
||
# pme XXX here's a first pass at such a check
|
||
if test x$enable_c_mbchar != xno; then
|
||
need_wlibio=yes
|
||
else
|
||
need_wlibio=no
|
||
fi
|
||
fi
|
||
;;
|
||
xstdio | x | xno | xnone | xyes)
|
||
# default
|
||
CSTDIO_H=config/io/c_io_stdio.h
|
||
BASIC_FILE_H=config/io/basic_file_stdio.h
|
||
BASIC_FILE_CC=config/io/basic_file_stdio.cc
|
||
AC_MSG_RESULT(stdio)
|
||
|
||
# We're not using stdio.
|
||
need_libio=no
|
||
need_wlibio=no
|
||
;;
|
||
*)
|
||
echo "$enable_cstdio is an unknown io package" 1>&2
|
||
exit 1
|
||
;;
|
||
esac
|
||
AC_SUBST(CSTDIO_H)
|
||
AC_SUBST(BASIC_FILE_H)
|
||
AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc)
|
||
|
||
# 2000-08-04 bkoz hack
|
||
CCODECVT_C=config/io/c_io_libio_codecvt.c
|
||
AC_SUBST(CCODECVT_C)
|
||
# 2000-08-04 bkoz hack
|
||
|
||
AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
|
||
test "$need_libio" = yes || test "$need_wlibio" = yes)
|
||
AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
|
||
AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
|
||
if test "$need_libio" = yes || test "$need_wlibio" = yes; then
|
||
libio_la=../libio/libio.la
|
||
else
|
||
libio_la=
|
||
fi
|
||
AC_SUBST(libio_la)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
|
||
dnl We must stage the required headers so that they will be installed
|
||
dnl with the library (unlike libgcc, the STL implementation is provided
|
||
dnl solely within headers). Since we must not inject random user-space
|
||
dnl macro names into user-provided C++ code, we first stage into <file>-in
|
||
dnl and process to <file> with an output command. The reason for a two-
|
||
dnl stage process here is to correctly handle $srcdir!=$objdir without
|
||
dnl having to write complex code (the sed commands to clean the macro
|
||
dnl namespace are complex and fragile enough as it is). We must also
|
||
dnl add a relative path so that -I- is supported properly.
|
||
dnl
|
||
AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
|
||
AC_MSG_CHECKING([for thread model used by GCC])
|
||
target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
|
||
AC_MSG_RESULT([$target_thread_file])
|
||
|
||
if test $target_thread_file != single; then
|
||
AC_DEFINE(HAVE_GTHR_DEFAULT)
|
||
AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__)
|
||
fi
|
||
|
||
glibcpp_thread_h=gthr-$target_thread_file.h
|
||
AC_SUBST(glibcpp_thread_h)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for exception handling support. If an explicit enable/disable
|
||
dnl sjlj exceptions is given, we don't have to detect. Otherwise the
|
||
dnl target may or may not support call frame exceptions.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
|
||
dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
|
||
dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
|
||
dnl
|
||
dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it.
|
||
dnl
|
||
AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [
|
||
AC_MSG_CHECKING([for exception model to use])
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
AC_ARG_ENABLE(sjlj-exceptions,
|
||
[ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
|
||
[:],
|
||
[dnl Botheration. Now we've got to detect the exception model.
|
||
dnl Link tests against libgcc.a are problematic since -- at least
|
||
dnl as of this writing -- we've not been given proper -L bits for
|
||
dnl single-tree newlib and libgloss.
|
||
dnl
|
||
dnl This is what AC_TRY_COMPILE would do if it didn't delete the
|
||
dnl conftest files before we got a change to grep them first.
|
||
cat > conftest.$ac_ext << EOF
|
||
[#]line __oline__ "configure"
|
||
struct S { ~S(); };
|
||
void bar();
|
||
void foo()
|
||
{
|
||
S s;
|
||
bar();
|
||
}
|
||
EOF
|
||
old_CXXFLAGS="$CXXFLAGS"
|
||
CXXFLAGS="-S -fexceptions"
|
||
if AC_TRY_EVAL(ac_compile); then
|
||
if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
|
||
enable_sjlj_exceptions=yes
|
||
elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
|
||
enable_sjlj_exceptions=no
|
||
fi
|
||
fi
|
||
CXXFLAGS="$old_CXXFLAGS"
|
||
rm -f conftest*])
|
||
if test x$enable_sjlj_exceptions = xyes; then
|
||
AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1,
|
||
[Define if the compiler is configured for setjmp/longjmp exceptions.])
|
||
ac_exception_model_name=sjlj
|
||
elif test x$enable_sjlj_exceptions = xno; then
|
||
ac_exception_model_name="call frame"
|
||
else
|
||
AC_MSG_ERROR([unable to detect exception model])
|
||
fi
|
||
AC_LANG_RESTORE
|
||
AC_MSG_RESULT($ac_exception_model_name)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for libunwind exception handling support. If enabled then
|
||
dnl we assume that the _Unwind_* functions that make up the Unwind ABI
|
||
dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
|
||
dnl libunwind instead of libgcc and that libstdc++ has a dependency
|
||
dnl on libunwind as well as libgcc.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS
|
||
dnl --enable-libunwind-exceptions forces the use of libunwind.
|
||
dnl --disable-libunwind-exceptions assumes there is no libunwind.
|
||
dnl
|
||
dnl Define _GLIBCPP_LIBUNWIND_EXCEPTIONS if requested.
|
||
dnl
|
||
AC_DEFUN(GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS, [
|
||
AC_MSG_CHECKING([for use of libunwind])
|
||
AC_ARG_ENABLE(libunwind-exceptions,
|
||
[ --enable-libunwind-exceptions force use of libunwind for exceptions],
|
||
use_libunwind_exceptions=$enableval,
|
||
use_libunwind_exceptions=no)
|
||
AC_MSG_RESULT($use_libunwind_exceptions)
|
||
dnl Option parsed, now set things appropriately
|
||
if test x"$use_libunwind_exceptions" = xyes; then
|
||
LIBUNWIND_FLAG="-lunwind"
|
||
else
|
||
LIBUNWIND_FLAG=""
|
||
fi
|
||
AC_SUBST(LIBUNWIND_FLAG)
|
||
])
|
||
|
||
dnl
|
||
dnl Check for ISO/IEC 9899:1999 "C99" support.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_C99
|
||
dnl --enable-c99 defines _GLIBCPP_USE_C99
|
||
dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined
|
||
dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If omitted, it
|
||
dnl defaults to `no'.
|
||
dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_C99
|
||
AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl
|
||
define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
|
||
AC_ARG_ENABLE(c99,
|
||
changequote(<<, >>)dnl
|
||
<<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$enableval" in
|
||
yes) enable_c99=yes ;;
|
||
no) enable_c99=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
|
||
esac],
|
||
enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
|
||
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
|
||
# Check for the existence of <math.h> functions used if C99 is enabled.
|
||
ac_c99_math=yes;
|
||
AC_MSG_CHECKING([for ISO C99 support in <math.h>])
|
||
AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[islessgreater(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_TRY_COMPILE([#include <math.h>],
|
||
[isunordered(0.0,0.0);],, [ac_c99_math=no])
|
||
AC_MSG_RESULT($ac_c99_math)
|
||
|
||
# Check for the existence in <stdio.h> of vscanf, et. al.
|
||
ac_c99_stdio=yes;
|
||
AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
|
||
AC_TRY_COMPILE([#include <stdio.h>],
|
||
[snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
|
||
AC_TRY_COMPILE([#include <stdio.h>
|
||
#include <stdarg.h>
|
||
void foo(char* fmt, ...)
|
||
{va_list args; va_start(args, fmt);
|
||
vfscanf(stderr, "%i", args);}],
|
||
[],, [ac_c99_stdio=no])
|
||
AC_TRY_COMPILE([#include <stdio.h>
|
||
#include <stdarg.h>
|
||
void foo(char* fmt, ...)
|
||
{va_list args; va_start(args, fmt);
|
||
vscanf("%i", args);}],
|
||
[],, [ac_c99_stdio=no])
|
||
AC_TRY_COMPILE([#include <stdio.h>
|
||
#include <stdarg.h>
|
||
void foo(char* fmt, ...)
|
||
{va_list args; va_start(args, fmt);
|
||
vsnprintf(fmt, 0, "%i", args);}],
|
||
[],, [ac_c99_stdio=no])
|
||
AC_TRY_COMPILE([#include <stdio.h>
|
||
#include <stdarg.h>
|
||
void foo(char* fmt, ...)
|
||
{va_list args; va_start(args, fmt);
|
||
vsscanf(fmt, "%i", args);}],
|
||
[],, [ac_c99_stdio=no])
|
||
AC_MSG_RESULT($ac_c99_stdio)
|
||
|
||
# Check for the existence in <stdlib.h> of lldiv_t, et. al.
|
||
ac_c99_stdlib=yes;
|
||
AC_MSG_CHECKING([for lldiv_t declaration])
|
||
AC_CACHE_VAL(ac_c99_lldiv_t, [
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[ lldiv_t mydivt;],
|
||
[ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
|
||
])
|
||
AC_MSG_RESULT($ac_c99_lldiv_t)
|
||
|
||
AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
|
||
if test x"$ac_c99_lldiv_t" = x"no"; then
|
||
ac_c99_stdlib=no;
|
||
fi;
|
||
AC_MSG_RESULT($ac_c99_stdlib)
|
||
|
||
# Check for the existence of <wchar.h> functions used if C99 is enabled.
|
||
# XXX the wchar.h checks should be rolled into the general C99 bits.
|
||
ac_c99_wchar=yes;
|
||
AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
|
||
AC_TRY_COMPILE([#include <wchar.h>],
|
||
[wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
|
||
AC_MSG_RESULT($ac_c99_wchar)
|
||
|
||
AC_MSG_CHECKING([for enabled ISO C99 support])
|
||
if test x"$ac_c99_math" = x"no" ||
|
||
test x"$ac_c99_stdio" = x"no" ||
|
||
test x"$ac_c99_stdlib" = x"no" ||
|
||
test x"$ac_c99_wchar" = x"no"; then
|
||
enable_c99=no;
|
||
fi;
|
||
AC_MSG_RESULT($enable_c99)
|
||
|
||
# Option parsed, now set things appropriately
|
||
if test x"$enable_c99" = x"yes"; then
|
||
AC_DEFINE(_GLIBCPP_USE_C99)
|
||
fi
|
||
|
||
AC_LANG_RESTORE
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for template specializations for the 'long long' type extension.
|
||
dnl The result determines only whether 'long long' I/O is enabled; things
|
||
dnl like numeric_limits<> specializations are always available.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_LONG_LONG
|
||
dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
|
||
dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
|
||
dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If omitted, it
|
||
dnl defaults to `no'.
|
||
dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_LONG_LONG
|
||
AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
|
||
define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
|
||
AC_ARG_ENABLE(long-long,
|
||
changequote(<<, >>)dnl
|
||
<<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$enableval" in
|
||
yes) enable_long_long=yes ;;
|
||
no) enable_long_long=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
|
||
esac],
|
||
enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
|
||
|
||
AC_LANG_SAVE
|
||
AC_LANG_CPLUSPLUS
|
||
|
||
AC_MSG_CHECKING([for enabled long long I/O support])
|
||
# iostreams require strtoll, strtoull to compile
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
|
||
AC_TRY_COMPILE([#include <stdlib.h>],
|
||
[char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
|
||
|
||
# Option parsed, now set things appropriately
|
||
if test x"$enable_long_long" = xyes; then
|
||
AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
|
||
fi
|
||
AC_MSG_RESULT($enable_long_long)
|
||
|
||
AC_LANG_RESTORE
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for what kind of C headers to use.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_CHEADERS
|
||
dnl --enable-cheaders= [does stuff].
|
||
dnl --disable-cheaders [does not do anything, really].
|
||
dnl + This will eventually need to be 'c_shadow' by default.
|
||
dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
|
||
dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'.
|
||
dnl If ommitted, it defaults to `c_std'.
|
||
AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
|
||
define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
|
||
AC_MSG_CHECKING([for c header strategy to use])
|
||
AC_ARG_ENABLE(cheaders,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
|
||
changequote([, ])
|
||
[case "$enableval" in
|
||
c)
|
||
enable_cheaders=c
|
||
;;
|
||
c_std)
|
||
enable_cheaders=c_std
|
||
;;
|
||
c_shadow)
|
||
enable_cheaders=c_shadow
|
||
;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
|
||
;;
|
||
esac],
|
||
enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
|
||
AC_MSG_RESULT($enable_cheaders)
|
||
|
||
dnl Option parsed, now set things appropriately
|
||
case "$enable_cheaders" in
|
||
c_shadow)
|
||
CSHADOW_FLAGS="-fno-builtin"
|
||
C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow'
|
||
;;
|
||
c_std)
|
||
CSHADOW_FLAGS=""
|
||
C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
|
||
;;
|
||
c)
|
||
CSHADOW_FLAGS=""
|
||
C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
|
||
;;
|
||
esac
|
||
|
||
AC_SUBST(CSHADOW_FLAGS)
|
||
AC_SUBST(C_INCLUDE_DIR)
|
||
AM_CONDITIONAL(GLIBCPP_C_HEADERS_C, test "$enable_cheaders" = c)
|
||
AM_CONDITIONAL(GLIBCPP_C_HEADERS_C_STD, test "$enable_cheaders" = c_std)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for wide character support. Has the same effect as the option
|
||
dnl in gcc's configure, but in a form that autoconf can mess with.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_C_MBCHAR
|
||
dnl --enable-c-mbchar requests all the wchar_t stuff.
|
||
dnl --disable-c-mbchar doesn't.
|
||
dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
||
dnl defaults to `no'.
|
||
AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
|
||
define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
AC_ARG_ENABLE(c-mbchar,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$enableval" in
|
||
yes) enable_c_mbchar=yes ;;
|
||
no) enable_c_mbchar=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
|
||
esac],
|
||
enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
|
||
dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
|
||
dnl
|
||
dnl TOPLEVEL_INCLUDES
|
||
dnl LIBMATH_INCLUDES
|
||
dnl LIBSUPCXX_INCLUDES
|
||
dnl LIBIO_INCLUDES
|
||
dnl CSHADOW_INCLUDES
|
||
dnl
|
||
dnl GLIBCPP_EXPORT_INCLUDES
|
||
AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
|
||
# Root level of the build directory include sources.
|
||
GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include"
|
||
|
||
# Passed down for canadian crosses.
|
||
if test x"$CANADIAN" = xyes; then
|
||
TOPLEVEL_INCLUDES='-I$(includedir)'
|
||
fi
|
||
|
||
LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
|
||
|
||
LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
|
||
|
||
if test x"$need_libio" = xyes; then
|
||
LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
|
||
AC_SUBST(LIBIO_INCLUDES)
|
||
fi
|
||
|
||
# Now, export this to all the little Makefiles....
|
||
AC_SUBST(GLIBCPP_INCLUDES)
|
||
AC_SUBST(TOPLEVEL_INCLUDES)
|
||
AC_SUBST(LIBMATH_INCLUDES)
|
||
AC_SUBST(LIBSUPCXX_INCLUDES)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
|
||
dnl
|
||
AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
|
||
# Optimization flags that are probably a good idea for thrill-seekers. Just
|
||
# uncomment the lines below and make, everything else is ready to go...
|
||
# OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
|
||
OPTIMIZE_CXXFLAGS=
|
||
AC_SUBST(OPTIMIZE_CXXFLAGS)
|
||
|
||
WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
|
||
AC_SUBST(WARN_FLAGS)
|
||
])
|
||
|
||
dnl
|
||
dnl GLIBCPP_EXPORT_INSTALL_INFO
|
||
dnl calculates gxx_install_dir
|
||
dnl exports glibcpp_toolexecdir
|
||
dnl exports glibcpp_toolexeclibdir
|
||
dnl exports glibcpp_prefixdir
|
||
dnl
|
||
dnl Assumes cross_compiling bits already done, and with_cross_host in
|
||
dnl particular
|
||
dnl
|
||
dnl GLIBCPP_EXPORT_INSTALL_INFO
|
||
AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
|
||
# Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
|
||
# exported correctly in GLIBCPP_CONFIGURE.
|
||
glibcpp_toolexecdir=no
|
||
glibcpp_toolexeclibdir=no
|
||
glibcpp_prefixdir=${prefix}
|
||
|
||
AC_MSG_CHECKING([for interface version number])
|
||
libstdcxx_interface=$INTERFACE
|
||
AC_MSG_RESULT($libstdcxx_interface)
|
||
|
||
# Process the option --with-gxx-include-dir=<path to include-files directory>
|
||
AC_MSG_CHECKING([for --with-gxx-include-dir])
|
||
AC_ARG_WITH(gxx-include-dir,
|
||
[ --with-gxx-include-dir the installation directory for include files],
|
||
[case "${withval}" in
|
||
yes)
|
||
AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
|
||
gxx_include_dir=no
|
||
;;
|
||
no)
|
||
gxx_include_dir=no
|
||
;;
|
||
*)
|
||
gxx_include_dir=${withval}
|
||
;;
|
||
esac], [gxx_include_dir=no])
|
||
AC_MSG_RESULT($gxx_include_dir)
|
||
|
||
# Process the option "--enable-version-specific-runtime-libs"
|
||
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
|
||
AC_ARG_ENABLE(version-specific-runtime-libs,
|
||
[ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
|
||
[case "$enableval" in
|
||
yes) version_specific_libs=yes ;;
|
||
no) version_specific_libs=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
|
||
esac],
|
||
version_specific_libs=no)dnl
|
||
# Option set, now we can test it.
|
||
AC_MSG_RESULT($version_specific_libs)
|
||
|
||
if test $version_specific_libs = yes; then
|
||
# Need the gcc compiler version to know where to install libraries
|
||
# and header files if --enable-version-specific-runtime-libs option
|
||
# is selected.
|
||
changequote(,)dnl
|
||
gcc_version_trigger=${srcdir}/../gcc/version.c
|
||
gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
|
||
gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
|
||
if test x"$gxx_include_dir" = x"no"; then
|
||
gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++
|
||
fi
|
||
glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
|
||
glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
|
||
changequote([,])dnl
|
||
fi
|
||
|
||
# Default case for install directory for include files.
|
||
if test $version_specific_libs = no &&
|
||
test $gxx_include_dir = no; then
|
||
gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface}
|
||
fi
|
||
|
||
# Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
|
||
# Install a library built with a cross compiler in tooldir, not libdir.
|
||
if test x"$glibcpp_toolexecdir" = x"no"; then
|
||
if test -n "$with_cross_host" &&
|
||
test x"$with_cross_host" != x"no"; then
|
||
glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
|
||
glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
|
||
else
|
||
glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
|
||
glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
|
||
fi
|
||
fi
|
||
|
||
AC_MSG_CHECKING([for install location])
|
||
AC_MSG_RESULT($gxx_include_dir)
|
||
|
||
AC_SUBST(glibcpp_prefixdir)
|
||
AC_SUBST(gxx_include_dir)
|
||
AC_SUBST(glibcpp_toolexecdir)
|
||
AC_SUBST(glibcpp_toolexeclibdir)
|
||
])
|
||
|
||
|
||
# Check for functions in math library.
|
||
# Ulrich Drepper <drepper@cygnus.com>, 1998.
|
||
#
|
||
# This file can be copied and used freely without restrictions. It can
|
||
# be used in projects which are not available under the GNU Public License
|
||
# but which still want to provide support for the GNU gettext functionality.
|
||
# Please note that the actual code is *not* freely available.
|
||
|
||
# serial 1
|
||
|
||
dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
|
||
AC_DEFUN(AC_REPLACE_MATHFUNCS,
|
||
[AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])])
|
||
|
||
|
||
dnl This macro searches for a GNU version of make. If a match is found, the
|
||
dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
|
||
dnl set to "#". This is useful for including a special features in a Makefile,
|
||
dnl which cannot be handled by other versions of make. The variable
|
||
dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
|
||
dnl the empty string otherwise.
|
||
dnl
|
||
dnl Here is an example of its use:
|
||
dnl
|
||
dnl Makefile.in might contain:
|
||
dnl
|
||
dnl # A failsafe way of putting a dependency rule into a makefile
|
||
dnl $(DEPEND):
|
||
dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
|
||
dnl
|
||
dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
|
||
dnl @ifGNUmake@ include $(DEPEND)
|
||
dnl @ifGNUmake@ endif
|
||
dnl
|
||
dnl Then configure.in would normally contain:
|
||
dnl
|
||
dnl CHECK_GNU_MAKE()
|
||
dnl AC_OUTPUT(Makefile)
|
||
dnl
|
||
dnl Then perhaps to cause gnu make to override any other make, we could do
|
||
dnl something like this (note that GNU make always looks for GNUmakefile first):
|
||
dnl
|
||
dnl if ! test x$_cv_gnu_make_command = x ; then
|
||
dnl mv Makefile GNUmakefile
|
||
dnl echo .DEFAULT: > Makefile ;
|
||
dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
|
||
dnl fi
|
||
dnl
|
||
dnl Then, if any (well almost any) other make is called, and GNU make also
|
||
dnl exists, then the other make wraps the GNU make.
|
||
dnl
|
||
dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
|
||
dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
|
||
dnl
|
||
dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
|
||
dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
|
||
dnl #### conditional's subshell (" --version" is not a command), using a
|
||
dnl #### different option to grep(1).
|
||
dnl #### -pme
|
||
dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
|
||
dnl #### ${MAKE:-make}).
|
||
dnl #### -msokolov
|
||
AC_DEFUN(
|
||
GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
|
||
_cv_gnu_make_command='' ;
|
||
dnl Search all the common names for GNU make
|
||
for a in "${MAKE-make}" make gmake gnumake ; do
|
||
if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
|
||
then
|
||
_cv_gnu_make_command=$a ;
|
||
break;
|
||
fi
|
||
done ;
|
||
) ;
|
||
dnl If there was a GNU version, then set @ifGNUmake@ to the empty
|
||
dnl string, '#' otherwise
|
||
if test "x$_cv_gnu_make_command" != "x" ; then
|
||
ifGNUmake='' ;
|
||
else
|
||
ifGNUmake='#' ;
|
||
fi
|
||
AC_SUBST(ifGNUmake)
|
||
])
|
||
|
||
|
||
dnl Check for headers for, and arguments to, the setrlimit() function.
|
||
dnl Used only in testsuite_hooks.h.
|
||
AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
|
||
AC_TRY_COMPILE([#include <sys/resource.h>
|
||
#include <unistd.h>
|
||
], [ int f = RLIMIT_$1 ; ],
|
||
[glibcpp_mresult=1], [glibcpp_mresult=0])
|
||
AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
|
||
[Only used in build directory testsuite_hooks.h.])
|
||
])
|
||
AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
|
||
setrlimit_have_headers=yes
|
||
AC_CHECK_HEADERS(sys/resource.h unistd.h,
|
||
[],
|
||
setrlimit_have_headers=no)
|
||
# If don't have the headers, then we can't run the tests now, and we
|
||
# won't be seeing any of these during testsuite compilation.
|
||
if test $setrlimit_have_headers = yes; then
|
||
# Can't do these in a loop, else the resulting syntax is wrong.
|
||
GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA)
|
||
GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS)
|
||
GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM)
|
||
GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS)
|
||
|
||
# Check for rlimit, setrlimit.
|
||
AC_CACHE_VAL(ac_setrlimit, [
|
||
AC_TRY_COMPILE([#include <sys/resource.h>
|
||
#include <unistd.h>
|
||
],
|
||
[ struct rlimit r; setrlimit(0, &r);],
|
||
[ac_setrlimit=yes], [ac_setrlimit=no])
|
||
])
|
||
fi
|
||
|
||
AC_MSG_CHECKING([for testsuite memory limit support])
|
||
if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
|
||
ac_mem_limits=yes
|
||
AC_DEFINE(_GLIBCPP_MEM_LIMITS)
|
||
else
|
||
ac_mem_limits=no
|
||
fi
|
||
AC_MSG_RESULT($ac_mem_limits)
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Does any necessary configuration of the testsuite directory. Generates
|
||
dnl the testsuite_hooks.h header.
|
||
dnl
|
||
dnl GLIBCPP_CONFIGURE_TESTSUITE [no args]
|
||
AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
|
||
GLIBCPP_CHECK_SETRLIMIT
|
||
|
||
# Look for setenv, so that extended locale tests can be performed.
|
||
GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
|
||
])
|
||
|
||
|
||
sinclude(../libtool.m4)
|
||
dnl The lines below arrange for aclocal not to bring an installed
|
||
dnl libtool.m4 into aclocal.m4, while still arranging for automake to
|
||
dnl add a definition of LIBTOOL to Makefile.in.
|
||
ifelse(,,,[AC_SUBST(LIBTOOL)
|
||
AC_DEFUN([AM_PROG_LIBTOOL])
|
||
AC_DEFUN([AC_LIBTOOL_DLOPEN])
|
||
AC_DEFUN([AC_PROG_LD])
|
||
])
|
||
|
||
|
||
# Check whether LC_MESSAGES is available in <locale.h>.
|
||
# Ulrich Drepper <drepper@cygnus.com>, 1995.
|
||
#
|
||
# This file file be copied and used freely without restrictions. It can
|
||
# be used in projects which are not available under the GNU Public License
|
||
# but which still want to provide support for the GNU gettext functionality.
|
||
# Please note that the actual code is *not* freely available.
|
||
|
||
# serial 1
|
||
|
||
AC_DEFUN(AC_LC_MESSAGES, [
|
||
AC_CHECK_HEADER(locale.h, [
|
||
AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
|
||
[AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
|
||
ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
|
||
if test $ac_cv_val_LC_MESSAGES = yes; then
|
||
AC_DEFINE(HAVE_LC_MESSAGES)
|
||
fi
|
||
])
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Check for whether the Boost-derived checks should be turned on.
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_CONCEPT_CHECKS
|
||
dnl --enable-concept-checks turns them on.
|
||
dnl --disable-concept-checks leaves them off.
|
||
dnl + Usage: GLIBCPP_ENABLE_CONCEPT_CHECKS[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
||
dnl defaults to `no'.
|
||
AC_DEFUN(GLIBCPP_ENABLE_CONCEPT_CHECKS, [dnl
|
||
define([GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
AC_ARG_ENABLE(concept-checks,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-concept-checks use Boost-derived template checks [default=>>GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$enableval" in
|
||
yes) enable_concept_checks=yes ;;
|
||
no) enable_concept_checks=no ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable concept checks]) ;;
|
||
esac],
|
||
enable_concept_checks=GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT)dnl
|
||
dnl Option parsed, now set things appropriately
|
||
if test x"$enable_concept_checks" = xyes; then
|
||
AC_DEFINE(_GLIBCPP_CONCEPT_CHECKS)
|
||
fi
|
||
])
|
||
|
||
|
||
dnl
|
||
dnl Add version tags to symbols in shared library (or not), additionally
|
||
dnl marking other symbols as private/local (or not).
|
||
dnl
|
||
dnl GLIBCPP_ENABLE_SYMVERS
|
||
dnl --enable-symvers=style adds a version script to the linker call when
|
||
dnl creating the shared library. The choice of version script is
|
||
dnl controlled by 'style'.
|
||
dnl --disable-symvers does not.
|
||
dnl + Usage: GLIBCPP_ENABLE_SYMVERS[(DEFAULT)]
|
||
dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
|
||
dnl defaults to `no'. Passing `yes' tries to choose a default style
|
||
dnl based on linker characteristics. Passing 'no' disables versioning.
|
||
AC_DEFUN(GLIBCPP_ENABLE_SYMVERS, [dnl
|
||
define([GLIBCPP_ENABLE_SYMVERS_DEFAULT], ifelse($1, yes, yes, no))dnl
|
||
AC_ARG_ENABLE(symvers,
|
||
changequote(<<, >>)dnl
|
||
<< --enable-symvers=style enables symbol versioning of the shared library [default=>>GLIBCPP_ENABLE_SYMVERS_DEFAULT],
|
||
changequote([, ])dnl
|
||
[case "$enableval" in
|
||
yes) enable_symvers=yes ;;
|
||
no) enable_symvers=no ;;
|
||
# other names here, just as sanity checks
|
||
#gnu|sun|etcetera) enable_symvers=$enableval ;;
|
||
gnu) enable_symvers=$enableval ;;
|
||
*) AC_MSG_ERROR([Unknown argument to enable/disable symvers]) ;;
|
||
esac],
|
||
enable_symvers=GLIBCPP_ENABLE_SYMVERS_DEFAULT)dnl
|
||
|
||
# If we never went through the GLIBCPP_CHECK_LINKER_FEATURES macro, then we
|
||
# don't know enough about $LD to do tricks...
|
||
if test x$enable_shared = xno ||
|
||
test x$LD = x ||
|
||
test x$glibcpp_gnu_ld_version = x; then
|
||
enable_symvers=no
|
||
fi
|
||
|
||
# Check to see if libgcc_s exists, indicating that shared libgcc is possible.
|
||
AC_MSG_CHECKING([for shared libgcc])
|
||
ac_save_CFLAGS="$CFLAGS"
|
||
CFLAGS=' -lgcc_s'
|
||
AC_TRY_LINK( , [return 0], glibcpp_shared_libgcc=yes, glibcpp_shared_libgcc=no)
|
||
CFLAGS="$ac_save_CFLAGS"
|
||
AC_MSG_RESULT($glibcpp_shared_libgcc)
|
||
|
||
# For GNU ld, we need at least this version. It's 2.12 in the same format
|
||
# as the tested-for version. See GLIBCPP_CHECK_LINKER_FEATURES for more.
|
||
glibcpp_min_gnu_ld_version=21200
|
||
|
||
# Check to see if unspecified "yes" value can win, given results
|
||
# above.
|
||
if test $enable_symvers = yes ; then
|
||
if test $with_gnu_ld = yes &&
|
||
test $glibcpp_shared_libgcc = yes ;
|
||
then
|
||
if test $glibcpp_gnu_ld_version -ge $glibcpp_min_gnu_ld_version ; then
|
||
enable_symvers=gnu
|
||
else
|
||
ac_test_CFLAGS="${CFLAGS+set}"
|
||
ac_save_CFLAGS="$CFLAGS"
|
||
CFLAGS='-shared -Wl,--version-script,conftest.map'
|
||
enable_symvers=no
|
||
changequote(,)
|
||
echo 'FOO { global: f[a-z]o; local: *; };' > conftest.map
|
||
changequote([,])
|
||
AC_TRY_LINK([int foo;],, enable_symvers=gnu)
|
||
if test "$ac_test_CFLAGS" = set; then
|
||
CFLAGS="$ac_save_CFLAGS"
|
||
else
|
||
# this is the suspicious part
|
||
CFLAGS=''
|
||
fi
|
||
rm -f conftest.map
|
||
fi
|
||
else
|
||
# just fail for now
|
||
enable_symvers=no
|
||
fi
|
||
fi
|
||
|
||
dnl Everything parsed; figure out what file to use.
|
||
case $enable_symvers in
|
||
no)
|
||
LINKER_MAP=config/linker-map.dummy
|
||
;;
|
||
gnu)
|
||
LINKER_MAP=config/linker-map.gnu
|
||
;;
|
||
esac
|
||
|
||
AC_LINK_FILES($LINKER_MAP, src/linker.map)
|
||
AM_CONDITIONAL(GLIBCPP_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
|
||
AC_MSG_CHECKING([versioning on shared library symbols])
|
||
AC_MSG_RESULT($enable_symvers)
|
||
])
|
||
|