dd744a896b
Changelog: https://git.tcpdump.org/libpcap/blob/104271ba4a14de6743e43bcf87536786d8fddea4:/CHANGES Reviewed by: emaste Obtained from: https://www.tcpdump.org/release/libpcap-1.10.4.tar.gz Sponsored by: The FreeBSD Foundation
1328 lines
40 KiB
Plaintext
1328 lines
40 KiB
Plaintext
dnl Copyright (c) 1995, 1996, 1997, 1998
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dnl The Regents of the University of California. All rights reserved.
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dnl
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dnl Redistribution and use in source and binary forms, with or without
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dnl modification, are permitted provided that: (1) source code distributions
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dnl retain the above copyright notice and this paragraph in its entirety, (2)
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dnl distributions including binary code include the above copyright notice and
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dnl this paragraph in its entirety in the documentation or other materials
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dnl provided with the distribution, and (3) all advertising materials mentioning
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dnl features or use of this software display the following acknowledgement:
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dnl ``This product includes software developed by the University of California,
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dnl Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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dnl the University nor the names of its contributors may be used to endorse
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dnl or promote products derived from this software without specific prior
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dnl written permission.
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dnl THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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dnl WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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dnl MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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dnl
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dnl LBL autoconf macros
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dnl
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dnl
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dnl Do whatever AC_LBL_C_INIT work is necessary before using AC_PROG_CC.
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dnl
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dnl It appears that newer versions of autoconf (2.64 and later) will,
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dnl if you use AC_TRY_COMPILE in a macro, stick AC_PROG_CC at the
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dnl beginning of the macro, even if the macro itself calls AC_PROG_CC.
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dnl See the "Prerequisite Macros" and "Expanded Before Required" sections
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dnl in the Autoconf documentation.
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dnl
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dnl This causes a steaming heap of fail in our case, as we were, in
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dnl AC_LBL_C_INIT, doing the tests we now do in AC_LBL_C_INIT_BEFORE_CC,
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dnl calling AC_PROG_CC, and then doing the tests we now do in
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dnl AC_LBL_C_INIT. Now, we run AC_LBL_C_INIT_BEFORE_CC, AC_PROG_CC,
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dnl and AC_LBL_C_INIT at the top level.
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dnl
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AC_DEFUN(AC_LBL_C_INIT_BEFORE_CC,
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[
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AC_BEFORE([$0], [AC_LBL_C_INIT])
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AC_BEFORE([$0], [AC_PROG_CC])
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AC_BEFORE([$0], [AC_LBL_FIXINCLUDES])
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AC_BEFORE([$0], [AC_LBL_DEVEL])
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AC_ARG_WITH(gcc, [ --without-gcc don't use gcc])
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$1=""
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if test "${srcdir}" != "." ; then
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$1="-I\$(srcdir)"
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fi
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if test "${CFLAGS+set}" = set; then
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LBL_CFLAGS="$CFLAGS"
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fi
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if test -z "$CC" ; then
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case "$host_os" in
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bsdi*)
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AC_CHECK_PROG(SHLICC2, shlicc2, yes, no)
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if test $SHLICC2 = yes ; then
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CC=shlicc2
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export CC
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fi
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;;
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esac
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fi
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if test -z "$CC" -a "$with_gcc" = no ; then
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CC=cc
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export CC
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fi
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])
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dnl
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dnl Determine which compiler we're using (cc or gcc)
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dnl If using gcc, determine the version number
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dnl If using cc:
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dnl require that it support ansi prototypes
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dnl use -O (AC_PROG_CC will use -g -O2 on gcc, so we don't need to
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dnl do that ourselves for gcc)
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dnl add -g flags, as appropriate
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dnl explicitly specify /usr/local/include
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dnl
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dnl NOTE WELL: with newer versions of autoconf, "gcc" means any compiler
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dnl that defines __GNUC__, which means clang, for example, counts as "gcc".
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dnl
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dnl usage:
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dnl
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dnl AC_LBL_C_INIT(copt, incls)
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dnl
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dnl results:
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dnl
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dnl $1 (copt set)
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dnl $2 (incls set)
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dnl CC
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dnl LDFLAGS
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dnl LBL_CFLAGS
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dnl
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AC_DEFUN(AC_LBL_C_INIT,
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[
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AC_BEFORE([$0], [AC_LBL_FIXINCLUDES])
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AC_BEFORE([$0], [AC_LBL_DEVEL])
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AC_BEFORE([$0], [AC_LBL_SHLIBS_INIT])
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if test "$GCC" = yes ; then
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#
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# -Werror forces warnings to be errors.
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#
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ac_lbl_cc_force_warning_errors=-Werror
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#
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# Try to have the compiler default to hiding symbols,
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# so that only symbols explicitly exported with
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# PCAP_API will be visible outside (shared) libraries.
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#
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AC_LBL_CHECK_COMPILER_OPT($1, -fvisibility=hidden)
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else
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$2="$$2 -I/usr/local/include"
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LDFLAGS="$LDFLAGS -L/usr/local/lib"
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case "$host_os" in
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darwin*)
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#
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# This is assumed either to be GCC or clang, both
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# of which use -Werror to force warnings to be errors.
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#
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ac_lbl_cc_force_warning_errors=-Werror
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#
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# Try to have the compiler default to hiding symbols,
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# so that only symbols explicitly exported with
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# PCAP_API will be visible outside (shared) libraries.
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#
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AC_LBL_CHECK_COMPILER_OPT($1, -fvisibility=hidden)
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;;
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hpux*)
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#
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# HP C, which is what we presume we're using, doesn't
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# exit with a non-zero exit status if we hand it an
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# invalid -W flag, can't be forced to do so even with
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# +We, and doesn't handle GCC-style -W flags, so we
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# don't want to try using GCC-style -W flags.
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#
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ac_lbl_cc_dont_try_gcc_dashW=yes
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;;
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irix*)
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#
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# MIPS C, which is what we presume we're using, doesn't
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# necessarily exit with a non-zero exit status if we
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# hand it an invalid -W flag, can't be forced to do
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# so, and doesn't handle GCC-style -W flags, so we
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# don't want to try using GCC-style -W flags.
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#
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ac_lbl_cc_dont_try_gcc_dashW=yes
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#
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# It also, apparently, defaults to "char" being
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# unsigned, unlike most other C implementations;
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# I suppose we could say "signed char" whenever
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# we want to guarantee a signed "char", but let's
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# just force signed chars.
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#
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# -xansi is normally the default, but the
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# configure script was setting it; perhaps -cckr
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# was the default in the Old Days. (Then again,
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# that would probably be for backwards compatibility
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# in the days when ANSI C was Shiny and New, i.e.
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# 1989 and the early '90's, so maybe we can just
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# drop support for those compilers.)
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#
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# -g is equivalent to -g2, which turns off
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# optimization; we choose -g3, which generates
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# debugging information but doesn't turn off
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# optimization (even if the optimization would
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# cause inaccuracies in debugging).
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#
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$1="$$1 -xansi -signed -g3"
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;;
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osf*)
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#
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# Presumed to be DEC OSF/1, Digital UNIX, or
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# Tru64 UNIX.
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#
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# The DEC C compiler, which is what we presume we're
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# using, doesn't exit with a non-zero exit status if we
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# hand it an invalid -W flag, can't be forced to do
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# so, and doesn't handle GCC-style -W flags, so we
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# don't want to try using GCC-style -W flags.
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#
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ac_lbl_cc_dont_try_gcc_dashW=yes
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#
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# -g is equivalent to -g2, which turns off
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# optimization; we choose -g3, which generates
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# debugging information but doesn't turn off
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# optimization (even if the optimization would
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# cause inaccuracies in debugging).
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#
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$1="$$1 -g3"
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;;
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solaris*)
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#
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# Assumed to be Sun C, which requires -errwarn to force
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# warnings to be treated as errors.
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#
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ac_lbl_cc_force_warning_errors=-errwarn
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#
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# Try to have the compiler default to hiding symbols,
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# so that only symbols explicitly exported with
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# PCAP_API will be visible outside (shared) libraries.
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#
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AC_LBL_CHECK_COMPILER_OPT($1, -xldscope=hidden)
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;;
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ultrix*)
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AC_MSG_CHECKING(that Ultrix $CC hacks const in prototypes)
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AC_CACHE_VAL(ac_cv_lbl_cc_const_proto,
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AC_TRY_COMPILE(
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[#include <sys/types.h>],
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[struct a { int b; };
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void c(const struct a *)],
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ac_cv_lbl_cc_const_proto=yes,
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ac_cv_lbl_cc_const_proto=no))
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AC_MSG_RESULT($ac_cv_lbl_cc_const_proto)
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if test $ac_cv_lbl_cc_const_proto = no ; then
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AC_DEFINE(const,[],
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[to handle Ultrix compilers that don't support const in prototypes])
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fi
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;;
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esac
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$1="$$1 -O"
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fi
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])
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dnl
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dnl Save the values of various variables that affect compilation and
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dnl linking, and that we don't ourselves modify persistently; done
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dnl before a test involving compiling or linking is done, so that we
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dnl can restore those variables after the test is done.
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dnl
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AC_DEFUN(AC_LBL_SAVE_CHECK_STATE,
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[
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save_CFLAGS="$CFLAGS"
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save_LIBS="$LIBS"
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save_LDFLAGS="$LDFLAGS"
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])
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dnl
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dnl Restore the values of variables saved by AC_LBL_SAVE_CHECK_STATE.
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dnl
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AC_DEFUN(AC_LBL_RESTORE_CHECK_STATE,
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[
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CFLAGS="$save_CFLAGS"
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LIBS="$save_LIBS"
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LDFLAGS="$save_LDFLAGS"
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])
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dnl
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dnl Check whether the compiler option specified as the second argument
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dnl is supported by the compiler and, if so, add it to the macro
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dnl specified as the first argument
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dnl
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dnl If a third argument is supplied, treat it as C code to be compiled
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dnl with the flag in question, and the "treat warnings as errors" flag
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dnl set, and don't add the flag to the first argument if the compile
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dnl fails; this is for warning options cause problems that can't be
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dnl worked around. If a third argument is supplied, a fourth argument
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dnl should also be supplied; it's a message describing what the test
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dnl program is checking.
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dnl
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AC_DEFUN(AC_LBL_CHECK_COMPILER_OPT,
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[
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AC_MSG_CHECKING([whether the compiler supports the $2 option])
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS $2"
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#
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# XXX - yes, this depends on the way AC_LANG_WERROR works,
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# but no mechanism is provided to turn AC_LANG_WERROR on
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# *and then turn it back off*, so that we *only* do it when
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# testing compiler options - 15 years after somebody asked
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# for it:
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#
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# https://autoconf.gnu.narkive.com/gTAVmfKD/how-to-cancel-flags-set-by-ac-lang-werror
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#
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save_ac_c_werror_flag="$ac_c_werror_flag"
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ac_c_werror_flag=yes
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#
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# We use AC_LANG_SOURCE() so that we can control the complete
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# content of the program being compiled. We do not, for example,
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# want the default "int main()" that AC_LANG_PROGRAM() generates,
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# as it will generate a warning with -Wold-style-definition, meaning
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# that we would treat it as not working, as the test will fail if
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# *any* error output, including a warning due to the flag we're
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# testing, is generated; see
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#
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# https://www.postgresql.org/message-id/2192993.1591682589%40sss.pgh.pa.us
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# https://www.postgresql.org/message-id/2192993.1591682589%40sss.pgh.pa.us
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#
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# This may, as per those two messages, be fixed in autoconf 2.70,
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# but we only require 2.64 or newer for now.
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#
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AC_COMPILE_IFELSE(
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[AC_LANG_SOURCE([[int main(void) { return 0; }]])],
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[
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AC_MSG_RESULT([yes])
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can_add_to_cflags=yes
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#
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# The compile supports this; do we have some C code for
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# which the warning should *not* appear?
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# We test the fourth argument because the third argument
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# could contain quotes, breaking the test.
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#
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if test "x$4" != "x"
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then
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CFLAGS="$CFLAGS $ac_lbl_cc_force_warning_errors"
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AC_MSG_CHECKING(whether $2 $4)
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AC_COMPILE_IFELSE(
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[AC_LANG_SOURCE($3)],
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[
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#
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# Not a problem.
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#
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AC_MSG_RESULT(no)
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],
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[
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#
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# A problem.
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#
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AC_MSG_RESULT(yes)
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can_add_to_cflags=no
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])
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fi
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CFLAGS="$save_CFLAGS"
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if test x"$can_add_to_cflags" = "xyes"
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then
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$1="$$1 $2"
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fi
|
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],
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[
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AC_MSG_RESULT([no])
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CFLAGS="$save_CFLAGS"
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])
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ac_c_werror_flag="$save_ac_c_werror_flag"
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])
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dnl
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dnl Check whether the compiler supports an option to generate
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dnl Makefile-style dependency lines
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dnl
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dnl GCC uses -M for this. Non-GCC compilers that support this
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dnl use a variety of flags, including but not limited to -M.
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dnl
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dnl We test whether the flag in question is supported, as older
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dnl versions of compilers might not support it.
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dnl
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dnl We don't try all the possible flags, just in case some flag means
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dnl "generate dependencies" on one compiler but means something else
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dnl on another compiler.
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dnl
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dnl Most compilers that support this send the output to the standard
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dnl output by default. IBM's XLC, however, supports -M but sends
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dnl the output to {sourcefile-basename}.u, and AIX has no /dev/stdout
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dnl to work around that, so we don't bother with XLC.
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dnl
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AC_DEFUN(AC_LBL_CHECK_DEPENDENCY_GENERATION_OPT,
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[
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AC_MSG_CHECKING([whether the compiler supports generating dependencies])
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if test "$GCC" = yes ; then
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#
|
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# GCC, or a compiler deemed to be GCC by AC_PROG_CC (even
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# though it's not); we assume that, in this case, the flag
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# would be -M.
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#
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ac_lbl_dependency_flag="-M"
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else
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#
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# Not GCC or a compiler deemed to be GCC; what platform is
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# this? (We're assuming that if the compiler isn't GCC
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# it's the compiler from the vendor of the OS; that won't
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# necessarily be true for x86 platforms, where it might be
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# the Intel C compiler.)
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#
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case "$host_os" in
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irix*|osf*|darwin*)
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#
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# MIPS C for IRIX, DEC C, and clang all use -M.
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#
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ac_lbl_dependency_flag="-M"
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;;
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solaris*)
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#
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# Sun C uses -xM.
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#
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ac_lbl_dependency_flag="-xM"
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;;
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hpux*)
|
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#
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# HP's older C compilers don't support this.
|
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# HP's newer C compilers support this with
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# either +M or +Make; the older compilers
|
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# interpret +M as something completely
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# different, so we use +Make so we don't
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# think it works with the older compilers.
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#
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ac_lbl_dependency_flag="+Make"
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;;
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*)
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#
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# Not one of the above; assume no support for
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# generating dependencies.
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#
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ac_lbl_dependency_flag=""
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;;
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esac
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fi
|
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|
|
#
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# Is ac_lbl_dependency_flag defined and, if so, does the compiler
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# complain about it?
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#
|
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# Note: clang doesn't seem to exit with an error status when handed
|
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# an unknown non-warning error, even if you pass it
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# -Werror=unknown-warning-option. However, it always supports
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# -M, so the fact that this test always succeeds with clang
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# isn't an issue.
|
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#
|
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if test ! -z "$ac_lbl_dependency_flag"; then
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AC_LANG_CONFTEST(
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[AC_LANG_SOURCE([[int main(void) { return 0; }]])])
|
|
if AC_RUN_LOG([eval "$CC $ac_lbl_dependency_flag conftest.c >/dev/null 2>&1"]); then
|
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AC_MSG_RESULT([yes, with $ac_lbl_dependency_flag])
|
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DEPENDENCY_CFLAG="$ac_lbl_dependency_flag"
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MKDEP='${top_srcdir}/mkdep'
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else
|
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AC_MSG_RESULT([no])
|
|
#
|
|
# We can't run mkdep, so have "make depend" do
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# nothing.
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|
#
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MKDEP='${top_srcdir}/nomkdep'
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fi
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rm -rf conftest*
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else
|
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AC_MSG_RESULT([no])
|
|
#
|
|
# We can't run mkdep, so have "make depend" do
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|
# nothing.
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|
#
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|
MKDEP='${top_srcdir}/nomkdep'
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fi
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AC_SUBST(DEPENDENCY_CFLAG)
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|
AC_SUBST(MKDEP)
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])
|
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dnl
|
|
dnl Determine what options are needed to build a shared library
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dnl
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dnl usage:
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dnl
|
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dnl AC_LBL_SHLIBS_INIT
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dnl
|
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dnl results:
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dnl
|
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dnl V_SHLIB_CCOPT (modified to build position-independent code)
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dnl V_SHLIB_CMD
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dnl V_SHLIB_OPT
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dnl V_SONAME_OPT
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dnl
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AC_DEFUN(AC_LBL_SHLIBS_INIT,
|
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[AC_PREREQ(2.50)
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|
if test "$GCC" = yes ; then
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#
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# On platforms where we build a shared library:
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#
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# add options to generate position-independent code,
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# if necessary (it's the default in AIX and Darwin/macOS);
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#
|
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# define option to set the soname of the shared library,
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# if the OS supports that;
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|
#
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# add options to specify, at link time, a directory to
|
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# add to the run-time search path, if that's necessary.
|
|
#
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V_SHLIB_CMD="\$(CC)"
|
|
V_SHLIB_OPT="-shared"
|
|
case "$host_os" in
|
|
|
|
aix*)
|
|
;;
|
|
|
|
freebsd*|netbsd*|openbsd*|dragonfly*|linux*|osf*|haiku*|midipix*)
|
|
#
|
|
# Platforms where the C compiler is GCC or accepts
|
|
# compatible command-line arguments, and the linker
|
|
# is the GNU linker or accepts compatible command-line
|
|
# arguments.
|
|
#
|
|
# Some instruction sets require -fPIC on some
|
|
# operating systems. Check for them. If you
|
|
# have a combination that requires it, add it
|
|
# here.
|
|
#
|
|
PIC_OPT=-fpic
|
|
case "$host_cpu" in
|
|
|
|
sparc64*)
|
|
case "$host_os" in
|
|
|
|
freebsd*|openbsd*|linux*)
|
|
PIC_OPT=-fPIC
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
V_SHLIB_CCOPT="$V_SHLIB_CCOPT $PIC_OPT"
|
|
V_SONAME_OPT="-Wl,-soname,"
|
|
;;
|
|
|
|
hpux*)
|
|
V_SHLIB_CCOPT="$V_SHLIB_CCOPT -fpic"
|
|
#
|
|
# XXX - this assumes GCC is using the HP linker,
|
|
# rather than the GNU linker, and that the "+h"
|
|
# option is used on all HP-UX platforms, both .sl
|
|
# and .so.
|
|
#
|
|
V_SONAME_OPT="-Wl,+h,"
|
|
#
|
|
# By default, directories specified with -L
|
|
# are added to the run-time search path, so
|
|
# we don't add them in pcap-config.
|
|
#
|
|
;;
|
|
|
|
solaris*)
|
|
V_SHLIB_CCOPT="$V_SHLIB_CCOPT -fpic"
|
|
#
|
|
# Sun/Oracle's C compiler, GCC, and GCC-compatible
|
|
# compilers support -Wl,{comma-separated list of options},
|
|
# and we use the C compiler, not ld, for all linking,
|
|
# including linking to produce a shared library.
|
|
#
|
|
V_SONAME_OPT="-Wl,-h,"
|
|
;;
|
|
esac
|
|
else
|
|
#
|
|
# Set the appropriate compiler flags and, on platforms
|
|
# where we build a shared library:
|
|
#
|
|
# add options to generate position-independent code,
|
|
# if necessary (it's the default in Darwin/macOS);
|
|
#
|
|
# if we generate ".so" shared libraries, define the
|
|
# appropriate options for building the shared library;
|
|
#
|
|
# add options to specify, at link time, a directory to
|
|
# add to the run-time search path, if that's necessary.
|
|
#
|
|
# Note: spaces after V_SONAME_OPT are significant; on
|
|
# some platforms the soname is passed with a GCC-like
|
|
# "-Wl,-soname,{soname}" option, with the soname part
|
|
# of the option, while on other platforms the C compiler
|
|
# driver takes it as a regular option with the soname
|
|
# following the option.
|
|
#
|
|
case "$host_os" in
|
|
|
|
aix*)
|
|
V_SHLIB_CMD="\$(CC)"
|
|
V_SHLIB_OPT="-G -bnoentry -bexpall"
|
|
;;
|
|
|
|
freebsd*|netbsd*|openbsd*|dragonfly*|linux*)
|
|
#
|
|
# Platforms where the C compiler is GCC or accepts
|
|
# compatible command-line arguments, and the linker
|
|
# is the GNU linker or accepts compatible command-line
|
|
# arguments.
|
|
#
|
|
# XXX - does 64-bit SPARC require -fPIC?
|
|
#
|
|
V_SHLIB_CCOPT="$V_SHLIB_CCOPT -fpic"
|
|
V_SHLIB_CMD="\$(CC)"
|
|
V_SHLIB_OPT="-shared"
|
|
V_SONAME_OPT="-Wl,-soname,"
|
|
;;
|
|
|
|
hpux*)
|
|
V_SHLIB_CCOPT="$V_SHLIB_CCOPT +z"
|
|
V_SHLIB_CMD="\$(LD)"
|
|
V_SHLIB_OPT="-b"
|
|
V_SONAME_OPT="+h "
|
|
#
|
|
# By default, directories specified with -L
|
|
# are added to the run-time search path, so
|
|
# we don't add them in pcap-config.
|
|
#
|
|
;;
|
|
|
|
osf*)
|
|
#
|
|
# Presumed to be DEC OSF/1, Digital UNIX, or
|
|
# Tru64 UNIX.
|
|
#
|
|
V_SHLIB_CMD="\$(CC)"
|
|
V_SHLIB_OPT="-shared"
|
|
V_SONAME_OPT="-soname "
|
|
;;
|
|
|
|
solaris*)
|
|
V_SHLIB_CCOPT="$V_SHLIB_CCOPT -Kpic"
|
|
V_SHLIB_CMD="\$(CC)"
|
|
V_SHLIB_OPT="-G"
|
|
#
|
|
# Sun/Oracle's C compiler, GCC, and GCC-compatible
|
|
# compilers support -Wl,{comma-separated list of options},
|
|
# and we use the C compiler, not ld, for all linking,
|
|
# including linking to produce a shared library.
|
|
#
|
|
V_SONAME_OPT="-Wl,-h,"
|
|
;;
|
|
esac
|
|
fi
|
|
])
|
|
|
|
#
|
|
# Try compiling a sample of the type of code that appears in
|
|
# gencode.c with "inline", "__inline__", and "__inline".
|
|
#
|
|
# Autoconf's AC_C_INLINE, at least in autoconf 2.13, isn't good enough,
|
|
# as it just tests whether a function returning "int" can be inlined;
|
|
# at least some versions of HP's C compiler can inline that, but can't
|
|
# inline a function that returns a struct pointer.
|
|
#
|
|
# Make sure we use the V_CCOPT flags, because some of those might
|
|
# disable inlining.
|
|
#
|
|
AC_DEFUN(AC_LBL_C_INLINE,
|
|
[AC_MSG_CHECKING(for inline)
|
|
save_CFLAGS="$CFLAGS"
|
|
CFLAGS="$V_CCOPT"
|
|
AC_CACHE_VAL(ac_cv_lbl_inline, [
|
|
ac_cv_lbl_inline=""
|
|
ac_lbl_cc_inline=no
|
|
for ac_lbl_inline in inline __inline__ __inline
|
|
do
|
|
AC_TRY_COMPILE(
|
|
[#define inline $ac_lbl_inline
|
|
static inline struct iltest *foo(void);
|
|
struct iltest {
|
|
int iltest1;
|
|
int iltest2;
|
|
};
|
|
|
|
static inline struct iltest *
|
|
foo()
|
|
{
|
|
static struct iltest xxx;
|
|
|
|
return &xxx;
|
|
}],,ac_lbl_cc_inline=yes,)
|
|
if test "$ac_lbl_cc_inline" = yes ; then
|
|
break;
|
|
fi
|
|
done
|
|
if test "$ac_lbl_cc_inline" = yes ; then
|
|
ac_cv_lbl_inline=$ac_lbl_inline
|
|
fi])
|
|
CFLAGS="$save_CFLAGS"
|
|
if test ! -z "$ac_cv_lbl_inline" ; then
|
|
AC_MSG_RESULT($ac_cv_lbl_inline)
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
fi
|
|
AC_DEFINE_UNQUOTED(inline, $ac_cv_lbl_inline, [Define as token for inline if inlining supported])])
|
|
|
|
#
|
|
# Test whether we have __atomic_load_n() and __atomic_store_n().
|
|
#
|
|
# We use AC_TRY_LINK because AC_TRY_COMPILE will succeed, as the
|
|
# compiler will just think that those functions are undefined,
|
|
# and perhaps warn about that, but not fail to compile.
|
|
#
|
|
AC_DEFUN(AC_PCAP_C___ATOMICS,
|
|
[
|
|
AC_MSG_CHECKING(for __atomic_load_n)
|
|
AC_CACHE_VAL(ac_cv_have___atomic_load_n,
|
|
AC_TRY_LINK([],
|
|
[
|
|
int i = 17;
|
|
int j;
|
|
j = __atomic_load_n(&i, __ATOMIC_RELAXED);
|
|
],
|
|
ac_have___atomic_load_n=yes,
|
|
ac_have___atomic_load_n=no))
|
|
AC_MSG_RESULT($ac_have___atomic_load_n)
|
|
if test $ac_have___atomic_load_n = yes ; then
|
|
AC_DEFINE(HAVE___ATOMIC_LOAD_N, 1,
|
|
[define if __atomic_load_n is supported by the compiler])
|
|
fi
|
|
|
|
AC_MSG_CHECKING(for __atomic_store_n)
|
|
AC_CACHE_VAL(ac_cv_have___atomic_store_n,
|
|
AC_TRY_LINK([],
|
|
[
|
|
int i;
|
|
__atomic_store_n(&i, 17, __ATOMIC_RELAXED);
|
|
],
|
|
ac_have___atomic_store_n=yes,
|
|
ac_have___atomic_store_n=no))
|
|
AC_MSG_RESULT($ac_have___atomic_store_n)
|
|
if test $ac_have___atomic_store_n = yes ; then
|
|
AC_DEFINE(HAVE___ATOMIC_STORE_N, 1,
|
|
[define if __atomic_store_n is supported by the compiler])
|
|
fi])
|
|
|
|
dnl
|
|
dnl If using gcc, make sure we have ANSI ioctl definitions
|
|
dnl
|
|
dnl usage:
|
|
dnl
|
|
dnl AC_LBL_FIXINCLUDES
|
|
dnl
|
|
AC_DEFUN(AC_LBL_FIXINCLUDES,
|
|
[if test "$GCC" = yes ; then
|
|
AC_MSG_CHECKING(for ANSI ioctl definitions)
|
|
AC_CACHE_VAL(ac_cv_lbl_gcc_fixincludes,
|
|
AC_TRY_COMPILE(
|
|
[/*
|
|
* This generates a "duplicate case value" when fixincludes
|
|
* has not be run.
|
|
*/
|
|
# include <sys/types.h>
|
|
# include <sys/time.h>
|
|
# include <sys/ioctl.h>
|
|
# ifdef HAVE_SYS_IOCCOM_H
|
|
# include <sys/ioccom.h>
|
|
# endif],
|
|
[switch (0) {
|
|
case _IO('A', 1):;
|
|
case _IO('B', 1):;
|
|
}],
|
|
ac_cv_lbl_gcc_fixincludes=yes,
|
|
ac_cv_lbl_gcc_fixincludes=no))
|
|
AC_MSG_RESULT($ac_cv_lbl_gcc_fixincludes)
|
|
if test $ac_cv_lbl_gcc_fixincludes = no ; then
|
|
# Don't cache failure
|
|
unset ac_cv_lbl_gcc_fixincludes
|
|
AC_MSG_ERROR(see the INSTALL for more info)
|
|
fi
|
|
fi])
|
|
|
|
dnl
|
|
dnl Checks to see if union wait is used with WEXITSTATUS()
|
|
dnl
|
|
dnl usage:
|
|
dnl
|
|
dnl AC_LBL_UNION_WAIT
|
|
dnl
|
|
dnl results:
|
|
dnl
|
|
dnl DECLWAITSTATUS (defined)
|
|
dnl
|
|
AC_DEFUN(AC_LBL_UNION_WAIT,
|
|
[AC_MSG_CHECKING(if union wait is used)
|
|
AC_CACHE_VAL(ac_cv_lbl_union_wait,
|
|
AC_TRY_COMPILE([
|
|
# include <sys/types.h>
|
|
# include <sys/wait.h>],
|
|
[int status;
|
|
u_int i = WEXITSTATUS(status);
|
|
u_int j = waitpid(0, &status, 0);],
|
|
ac_cv_lbl_union_wait=no,
|
|
ac_cv_lbl_union_wait=yes))
|
|
AC_MSG_RESULT($ac_cv_lbl_union_wait)
|
|
if test $ac_cv_lbl_union_wait = yes ; then
|
|
AC_DEFINE(DECLWAITSTATUS,union wait,[type for wait])
|
|
else
|
|
AC_DEFINE(DECLWAITSTATUS,int,[type for wait])
|
|
fi])
|
|
|
|
dnl
|
|
dnl Checks to see if -R is used
|
|
dnl
|
|
dnl usage:
|
|
dnl
|
|
dnl AC_LBL_HAVE_RUN_PATH
|
|
dnl
|
|
dnl results:
|
|
dnl
|
|
dnl ac_cv_lbl_have_run_path (yes or no)
|
|
dnl
|
|
AC_DEFUN(AC_LBL_HAVE_RUN_PATH,
|
|
[AC_MSG_CHECKING(for ${CC-cc} -R)
|
|
AC_CACHE_VAL(ac_cv_lbl_have_run_path,
|
|
[echo 'main(){}' > conftest.c
|
|
${CC-cc} -o conftest conftest.c -R/a1/b2/c3 >conftest.out 2>&1
|
|
if test ! -s conftest.out ; then
|
|
ac_cv_lbl_have_run_path=yes
|
|
else
|
|
ac_cv_lbl_have_run_path=no
|
|
fi
|
|
rm -f -r conftest*])
|
|
AC_MSG_RESULT($ac_cv_lbl_have_run_path)
|
|
])
|
|
|
|
dnl
|
|
dnl If the file .devel exists:
|
|
dnl Add some warning flags if the compiler supports them
|
|
dnl If an os prototype include exists, symlink os-proto.h to it
|
|
dnl
|
|
dnl usage:
|
|
dnl
|
|
dnl AC_LBL_DEVEL(copt)
|
|
dnl
|
|
dnl results:
|
|
dnl
|
|
dnl $1 (copt appended)
|
|
dnl HAVE_OS_PROTO_H (defined)
|
|
dnl os-proto.h (symlinked)
|
|
dnl
|
|
AC_DEFUN(AC_LBL_DEVEL,
|
|
[rm -f os-proto.h
|
|
if test "${LBL_CFLAGS+set}" = set; then
|
|
$1="$$1 ${LBL_CFLAGS}"
|
|
fi
|
|
if test -f .devel ; then
|
|
#
|
|
# Skip all the warning option stuff on some compilers.
|
|
#
|
|
if test "$ac_lbl_cc_dont_try_gcc_dashW" != yes; then
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -W)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wall)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wcomma)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wdocumentation)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wformat-nonliteral)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wmissing-noreturn)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wmissing-prototypes)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wmissing-variable-declarations)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wpointer-arith)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wpointer-sign)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wshadow)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wsign-compare)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wstrict-prototypes)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wunused-parameter)
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wused-but-marked-unused)
|
|
# Warns about safeguards added in case the enums are
|
|
# extended
|
|
# AC_LBL_CHECK_COMPILER_OPT($1, -Wcovered-switch-default)
|
|
#
|
|
# This can cause problems with ntohs(), ntohl(),
|
|
# htons(), and htonl() on some platforms, such
|
|
# as OpenBSD 6.3 with Clang 5.0.1. I guess the
|
|
# problem is that the macro that ultimately does
|
|
# the byte-swapping involves a conditional
|
|
# expression that tests whether the value being
|
|
# swapped is a compile-time constant or not,
|
|
# using __builtin_constant_p(), and, depending
|
|
# on whether it is, does a compile-time swap or
|
|
# a run-time swap; perhaps the compiler always
|
|
# considers one of the two results of the
|
|
# conditional expressin is never evaluated,
|
|
# because the conditional check is done at
|
|
# compile time, and thus always says "that
|
|
# expression is never executed".
|
|
#
|
|
# (Perhaps there should be a way of flagging
|
|
# an expression that you *want* evaluated at
|
|
# compile time, so that the compiler 1) warns
|
|
# if it *can't* be evaluated at compile time
|
|
# and 2) *doesn't* warn that the true or false
|
|
# branch will never be reached.)
|
|
#
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wunreachable-code,
|
|
[
|
|
#include <arpa/inet.h>
|
|
|
|
unsigned short
|
|
testme(unsigned short a)
|
|
{
|
|
return ntohs(a);
|
|
}
|
|
],
|
|
[generates warnings from ntohs()])
|
|
AC_LBL_CHECK_COMPILER_OPT($1, -Wshorten-64-to-32)
|
|
fi
|
|
AC_LBL_CHECK_DEPENDENCY_GENERATION_OPT()
|
|
#
|
|
# We used to set -n32 for IRIX 6 when not using GCC (presumed
|
|
# to mean that we're using MIPS C or MIPSpro C); it specified
|
|
# the "new" faster 32-bit ABI, introduced in IRIX 6.2. I'm
|
|
# not sure why that would be something to do *only* with a
|
|
# .devel file; why should the ABI for which we produce code
|
|
# depend on .devel?
|
|
#
|
|
os=`echo $host_os | sed -e 's/\([[0-9]][[0-9]]*\)[[^0-9]].*$/\1/'`
|
|
name="lbl/os-$os.h"
|
|
if test -f $name ; then
|
|
ln -s $name os-proto.h
|
|
AC_DEFINE(HAVE_OS_PROTO_H, 1,
|
|
[if there's an os_proto.h for this platform, to use additional prototypes])
|
|
else
|
|
AC_MSG_WARN(can't find $name)
|
|
fi
|
|
fi])
|
|
|
|
dnl
|
|
dnl Improved version of AC_CHECK_LIB
|
|
dnl
|
|
dnl Thanks to John Hawkinson (jhawk@mit.edu)
|
|
dnl
|
|
dnl usage:
|
|
dnl
|
|
dnl AC_LBL_CHECK_LIB(LIBRARY, FUNCTION [, ACTION-IF-FOUND [,
|
|
dnl ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
|
|
dnl
|
|
dnl results:
|
|
dnl
|
|
dnl LIBS
|
|
dnl
|
|
dnl XXX - "AC_LBL_LIBRARY_NET" was redone to use "AC_SEARCH_LIBS"
|
|
dnl rather than "AC_LBL_CHECK_LIB", so this isn't used any more.
|
|
dnl We keep it around for reference purposes in case it's ever
|
|
dnl useful in the future.
|
|
dnl
|
|
|
|
define(AC_LBL_CHECK_LIB,
|
|
[AC_MSG_CHECKING([for $2 in -l$1])
|
|
dnl Use a cache variable name containing the library, function
|
|
dnl name, and extra libraries to link with, because the test really is
|
|
dnl for library $1 defining function $2, when linked with potinal
|
|
dnl library $5, not just for library $1. Separate tests with the same
|
|
dnl $1 and different $2's or $5's may have different results.
|
|
ac_lib_var=`echo $1['_']$2['_']$5 | sed 'y%./+- %__p__%'`
|
|
AC_CACHE_VAL(ac_cv_lbl_lib_$ac_lib_var,
|
|
[ac_save_LIBS="$LIBS"
|
|
LIBS="-l$1 $5 $LIBS"
|
|
AC_TRY_LINK(dnl
|
|
ifelse([$2], [main], , dnl Avoid conflicting decl of main.
|
|
[/* Override any gcc2 internal prototype to avoid an error. */
|
|
]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
|
|
extern "C"
|
|
#endif
|
|
])dnl
|
|
[/* We use char because int might match the return type of a gcc2
|
|
builtin and then its argument prototype would still apply. */
|
|
char $2();
|
|
]),
|
|
[$2()],
|
|
eval "ac_cv_lbl_lib_$ac_lib_var=yes",
|
|
eval "ac_cv_lbl_lib_$ac_lib_var=no")
|
|
LIBS="$ac_save_LIBS"
|
|
])dnl
|
|
if eval "test \"`echo '$ac_cv_lbl_lib_'$ac_lib_var`\" = yes"; then
|
|
AC_MSG_RESULT(yes)
|
|
ifelse([$3], ,
|
|
[changequote(, )dnl
|
|
ac_tr_lib=HAVE_LIB`echo $1 | sed -e 's/[^a-zA-Z0-9_]/_/g' \
|
|
-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
|
|
changequote([, ])dnl
|
|
AC_DEFINE_UNQUOTED($ac_tr_lib)
|
|
LIBS="-l$1 $LIBS"
|
|
], [$3])
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
ifelse([$4], , , [$4
|
|
])dnl
|
|
fi
|
|
])
|
|
|
|
dnl
|
|
dnl AC_LBL_LIBRARY_NET
|
|
dnl
|
|
dnl This test is for network applications that need socket functions and
|
|
dnl getaddrinfo()/getnameinfo()-ish functions. We now require
|
|
dnl getaddrinfo() and getnameinfo(). We also prefer versions of
|
|
dnl recvmsg() that conform to the Single UNIX Specification, so that we
|
|
dnl can check whether a datagram received with recvmsg() was truncated
|
|
dnl when received due to the buffer being too small.
|
|
dnl
|
|
dnl On most operating systems, they're available in the system library.
|
|
dnl
|
|
dnl Under Solaris, we need to link with libsocket and libnsl to get
|
|
dnl getaddrinfo() and getnameinfo() and, if we have libxnet, we need to
|
|
dnl link with libxnet before libsocket to get a version of recvmsg()
|
|
dnl that conforms to the Single UNIX Specification.
|
|
dnl
|
|
dnl We use getaddrinfo() because we want a portable thread-safe way
|
|
dnl of getting information for a host name or port; there exist _r
|
|
dnl versions of gethostbyname() and getservbyname() on some platforms,
|
|
dnl but not on all platforms.
|
|
dnl
|
|
AC_DEFUN(AC_LBL_LIBRARY_NET, [
|
|
#
|
|
# Most operating systems have getaddrinfo() in the default searched
|
|
# libraries (i.e. libc). Check there first.
|
|
#
|
|
AC_CHECK_FUNC(getaddrinfo,,
|
|
[
|
|
#
|
|
# Not found in the standard system libraries.
|
|
# Try libsocket, which requires libnsl.
|
|
#
|
|
AC_CHECK_LIB(socket, getaddrinfo,
|
|
[
|
|
#
|
|
# OK, we found it in libsocket.
|
|
#
|
|
LIBS="-lsocket -lnsl $LIBS"
|
|
],
|
|
[
|
|
#
|
|
# Not found in libsocket; test for it in libnetwork, which
|
|
# is where it is in Haiku.
|
|
#
|
|
AC_CHECK_LIB(network, getaddrinfo,
|
|
[
|
|
#
|
|
# OK, we found it in libnetwork.
|
|
#
|
|
LIBS="-lnetwork $LIBS"
|
|
],
|
|
[
|
|
#
|
|
# We didn't find it.
|
|
#
|
|
AC_MSG_ERROR([getaddrinfo is required, but wasn't found])
|
|
])
|
|
], -lnsl)
|
|
|
|
#
|
|
# OK, do we have recvmsg() in libxnet?
|
|
# We also link with libsocket and libnsl.
|
|
#
|
|
AC_CHECK_LIB(xnet, recvmsg,
|
|
[
|
|
#
|
|
# Yes - link with it as well.
|
|
#
|
|
LIBS="-lxnet $LIBS"
|
|
], , -lsocket -lnsl)
|
|
])
|
|
# DLPI needs putmsg under HPUX so test for -lstr while we're at it
|
|
AC_SEARCH_LIBS(putmsg, str)
|
|
])
|
|
|
|
m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
|
|
dnl pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
|
|
dnl serial 11 (pkg-config-0.29)
|
|
dnl
|
|
dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
|
|
dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
|
|
dnl
|
|
dnl This program is free software; you can redistribute it and/or modify
|
|
dnl it under the terms of the GNU General Public License as published by
|
|
dnl the Free Software Foundation; either version 2 of the License, or
|
|
dnl (at your option) any later version.
|
|
dnl
|
|
dnl This program is distributed in the hope that it will be useful, but
|
|
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
dnl General Public License for more details.
|
|
dnl
|
|
dnl You should have received a copy of the GNU General Public License
|
|
dnl along with this program; if not, write to the Free Software
|
|
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
|
dnl 02111-1307, USA.
|
|
dnl
|
|
dnl As a special exception to the GNU General Public License, if you
|
|
dnl distribute this file as part of a program that contains a
|
|
dnl configuration script generated by Autoconf, you may include it under
|
|
dnl the same distribution terms that you use for the rest of that
|
|
dnl program.
|
|
|
|
dnl PKG_PREREQ(MIN-VERSION)
|
|
dnl -----------------------
|
|
dnl Since: 0.29
|
|
dnl
|
|
dnl Verify that the version of the pkg-config macros are at least
|
|
dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
|
|
dnl installed version of pkg-config, this checks the developer's version
|
|
dnl of pkg.m4 when generating configure.
|
|
dnl
|
|
dnl To ensure that this macro is defined, also add:
|
|
dnl m4_ifndef([PKG_PREREQ],
|
|
dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
|
|
dnl
|
|
dnl See the "Since" comment for each macro you use to see what version
|
|
dnl of the macros you require.
|
|
m4_defun([PKG_PREREQ],
|
|
[m4_define([PKG_MACROS_VERSION], [0.29])
|
|
m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
|
|
[m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
|
|
])dnl PKG_PREREQ
|
|
|
|
dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
|
|
dnl ----------------------------------
|
|
dnl Since: 0.16
|
|
dnl
|
|
dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
|
|
dnl first found in the path. Checks that the version of pkg-config found
|
|
dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.17.0 is
|
|
dnl used since that's the first version where --static was supported.
|
|
AC_DEFUN([PKG_PROG_PKG_CONFIG],
|
|
[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
|
|
m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
|
|
m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
|
|
AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
|
|
AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
|
|
AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
|
|
|
|
if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
|
|
AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
|
|
fi
|
|
if test -n "$PKG_CONFIG"; then
|
|
_pkg_min_version=m4_default([$1], [0.17.0])
|
|
AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
|
|
if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
|
|
AC_MSG_RESULT([yes])
|
|
else
|
|
AC_MSG_RESULT([no])
|
|
PKG_CONFIG=""
|
|
fi
|
|
fi[]dnl
|
|
])dnl PKG_PROG_PKG_CONFIG
|
|
|
|
dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
|
|
dnl -------------------------------------------------------------------
|
|
dnl Since: 0.18
|
|
dnl
|
|
dnl Check to see whether a particular set of modules exists. Similar to
|
|
dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
|
|
AC_DEFUN([PKG_CHECK_EXISTS],
|
|
[
|
|
if test -n "$PKG_CONFIG" && \
|
|
AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
|
|
m4_default([$2], [:])
|
|
m4_ifvaln([$3], [else
|
|
$3])dnl
|
|
fi])
|
|
|
|
dnl _PKG_CONFIG([VARIABLE], [FLAGS], [MODULES])
|
|
dnl ---------------------------------------------
|
|
dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
|
|
dnl pkg_failed based on the result.
|
|
m4_define([_PKG_CONFIG],
|
|
[if test -n "$$1"; then
|
|
pkg_cv_[]$1="$$1"
|
|
elif test -n "$PKG_CONFIG"; then
|
|
PKG_CHECK_EXISTS([$3],
|
|
[pkg_cv_[]$1=`$PKG_CONFIG $2 "$3" 2>/dev/null`
|
|
test "x$?" != "x0" && pkg_failed=yes ],
|
|
[pkg_failed=yes])
|
|
else
|
|
pkg_failed=untried
|
|
fi[]dnl
|
|
])dnl _PKG_CONFIG
|
|
|
|
dnl _PKG_SHORT_ERRORS_SUPPORTED
|
|
dnl ---------------------------
|
|
dnl Internal check to see if pkg-config supports short errors.
|
|
AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
|
|
[
|
|
if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
|
|
_pkg_short_errors_supported=yes
|
|
else
|
|
_pkg_short_errors_supported=no
|
|
fi[]dnl
|
|
])dnl _PKG_SHORT_ERRORS_SUPPORTED
|
|
|
|
|
|
dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
|
|
dnl [ACTION-IF-NOT-FOUND])
|
|
dnl --------------------------------------------------------------
|
|
dnl Since: 0.4.0
|
|
AC_DEFUN([PKG_CHECK_MODULES],
|
|
[
|
|
AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $2, overriding pkg-config])dnl
|
|
AC_ARG_VAR([$1][_LIBS], [linker flags for $2, overriding pkg-config])dnl
|
|
AC_ARG_VAR([$1][_LIBS_STATIC], [static-link linker flags for $2, overriding pkg-config])dnl
|
|
|
|
pkg_failed=no
|
|
AC_MSG_CHECKING([for $2 with pkg-config])
|
|
PKG_CHECK_EXISTS($2,
|
|
[
|
|
#
|
|
# The package was found, so try to get its C flags and
|
|
# libraries.
|
|
#
|
|
_PKG_CONFIG([$1][_CFLAGS], [--cflags], [$2])
|
|
_PKG_CONFIG([$1][_LIBS], [--libs], [$2])
|
|
_PKG_CONFIG([$1][_LIBS_STATIC], [--libs --static], [$2])
|
|
|
|
m4_define([_PKG_TEXT], [
|
|
Alternatively, you may set the environment variables $1[]_CFLAGS
|
|
and $1[]_LIBS to avoid the need to call pkg-config.
|
|
See the pkg-config man page for more details.])
|
|
|
|
if test $pkg_failed = yes; then
|
|
#
|
|
# That failed - report an error.
|
|
#
|
|
AC_MSG_RESULT([error])
|
|
_PKG_SHORT_ERRORS_SUPPORTED
|
|
if test $_pkg_short_errors_supported = yes; then
|
|
$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
|
|
else
|
|
$1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
|
|
fi
|
|
# Put the nasty error message in config.log where it belongs
|
|
echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
|
|
|
|
m4_default([$4], [AC_MSG_ERROR(
|
|
[Package requirements ($2) were not met:
|
|
|
|
$$1_PKG_ERRORS
|
|
|
|
Consider adjusting the PKG_CONFIG_PATH environment variable if you
|
|
installed software in a non-standard prefix.
|
|
|
|
_PKG_TEXT])[]dnl
|
|
])
|
|
elif test $pkg_failed = untried; then
|
|
#
|
|
# We don't have pkg-config, so it didn't work.
|
|
#
|
|
AC_MSG_RESULT([not found (pkg-config not found)])
|
|
else
|
|
#
|
|
# We found the package.
|
|
#
|
|
$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
|
|
$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
|
|
$1[]_LIBS_STATIC=$pkg_cv_[]$1[]_LIBS_STATIC
|
|
AC_MSG_RESULT([found])
|
|
$3
|
|
fi[]dnl
|
|
],
|
|
[
|
|
#
|
|
# The package isn't present.
|
|
#
|
|
AC_MSG_RESULT([not found])
|
|
])
|
|
])dnl PKG_CHECK_MODULES
|
|
|
|
|
|
dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
|
|
dnl [ACTION-IF-NOT-FOUND])
|
|
dnl ---------------------------------------------------------------------
|
|
dnl Since: 0.29
|
|
dnl
|
|
dnl Checks for existence of MODULES and gathers its build flags with
|
|
dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
|
|
dnl and VARIABLE-PREFIX_LIBS from --libs.
|
|
AC_DEFUN([PKG_CHECK_MODULES_STATIC],
|
|
[
|
|
_save_PKG_CONFIG=$PKG_CONFIG
|
|
PKG_CONFIG="$PKG_CONFIG --static"
|
|
PKG_CHECK_MODULES($@)
|
|
PKG_CONFIG=$_save_PKG_CONFIG[]dnl
|
|
])dnl PKG_CHECK_MODULES_STATIC
|
|
|
|
|
|
dnl PKG_INSTALLDIR([DIRECTORY])
|
|
dnl -------------------------
|
|
dnl Since: 0.27
|
|
dnl
|
|
dnl Substitutes the variable pkgconfigdir as the location where a module
|
|
dnl should install pkg-config .pc files. By default the directory is
|
|
dnl $libdir/pkgconfig, but the default can be changed by passing
|
|
dnl DIRECTORY. The user can override through the --with-pkgconfigdir
|
|
dnl parameter.
|
|
AC_DEFUN([PKG_INSTALLDIR],
|
|
[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
|
|
m4_pushdef([pkg_description],
|
|
[pkg-config installation directory @<:@]pkg_default[@:>@])
|
|
AC_ARG_WITH([pkgconfigdir],
|
|
[AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
|
|
[with_pkgconfigdir=]pkg_default)
|
|
AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
|
|
m4_popdef([pkg_default])
|
|
m4_popdef([pkg_description])
|
|
])dnl PKG_INSTALLDIR
|
|
|
|
|
|
dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
|
|
dnl --------------------------------
|
|
dnl Since: 0.27
|
|
dnl
|
|
dnl Substitutes the variable noarch_pkgconfigdir as the location where a
|
|
dnl module should install arch-independent pkg-config .pc files. By
|
|
dnl default the directory is $datadir/pkgconfig, but the default can be
|
|
dnl changed by passing DIRECTORY. The user can override through the
|
|
dnl --with-noarch-pkgconfigdir parameter.
|
|
AC_DEFUN([PKG_NOARCH_INSTALLDIR],
|
|
[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
|
|
m4_pushdef([pkg_description],
|
|
[pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
|
|
AC_ARG_WITH([noarch-pkgconfigdir],
|
|
[AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
|
|
[with_noarch_pkgconfigdir=]pkg_default)
|
|
AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
|
|
m4_popdef([pkg_default])
|
|
m4_popdef([pkg_description])
|
|
])dnl PKG_NOARCH_INSTALLDIR
|
|
|
|
|
|
dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
|
|
dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
|
|
dnl -------------------------------------------
|
|
dnl Since: 0.28
|
|
dnl
|
|
dnl Retrieves the value of the pkg-config variable for the given module.
|
|
AC_DEFUN([PKG_CHECK_VAR],
|
|
[
|
|
AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
|
|
|
|
_PKG_CONFIG([$1], [--variable="][$3]["], [$2])
|
|
AS_VAR_COPY([$1], [pkg_cv_][$1])
|
|
|
|
AS_VAR_IF([$1], [""], [$5], [$4])dnl
|
|
])dnl PKG_CHECK_VAR
|