ef55446a9c
Several of the listed library dependencies are not relevant on FreeBSD.
Have ./configure save libraries that are found via pkg-config as
${LIB}_PC and use the configured automake variables instead of hard
coded names so we only get what was actually needed.
While here, update the URL to point at the OpenZFS Github repo.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #10869
99 lines
2.9 KiB
Plaintext
99 lines
2.9 KiB
Plaintext
# find_system_lib.m4 - Macros to search for a system library. -*- Autoconf -*-
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dnl requires pkg.m4 from pkg-config
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dnl requires ax_save_flags.m4 from autoconf-archive
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dnl requires ax_restore_flags.m4 from autoconf-archive
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dnl ZFS_AC_FIND_SYSTEM_LIBRARY(VARIABLE-PREFIX, MODULE, HEADER, HEADER-PREFIXES, LIBRARY, FUNCTIONS, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
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AC_DEFUN([ZFS_AC_FIND_SYSTEM_LIBRARY], [
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AC_REQUIRE([PKG_PROG_PKG_CONFIG])
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_header_found=
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_library_found=
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_pc_found=
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AS_IF([test -n "$2"], [PKG_CHECK_MODULES([$1], [$2], [
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_header_found=1
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_library_found=1
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_pc_found=1
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], [:])])
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# set _header_found/_library_found if the user passed in CFLAGS/LIBS
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AS_IF([test "x$[$1][_CFLAGS]" != x], [_header_found=1])
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AS_IF([test "x$[$1][_LIBS]" != x], [_library_found=1])
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AX_SAVE_FLAGS
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orig_CFLAGS="$CFLAGS"
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for _prefixdir in /usr /usr/local
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do
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AS_VAR_PUSHDEF([header_cache], [ac_cv_header_$3])
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AS_IF([test "x$_prefixdir" != "x/usr"], [
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[$1][_CFLAGS]="-I$lt_sysroot$_prefixdir/include"
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AS_IF([test "x$_library_found" = x], [
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[$1][_LIBS]="-L$lt_sysroot$_prefixdir/lib"
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])
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])
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CFLAGS="$orig_CFLAGS $[$1][_CFLAGS]"
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AS_UNSET([header_cache])
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AC_CHECK_HEADER([$3], [
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_header_found=1
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break
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], [AS_IF([test "x$_header_found" = "x1"], [
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# if pkg-config or the user set CFLAGS, fail if the header is unusable
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AC_MSG_FAILURE([header [$3] for library [$5] is not usable])
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])], [AC_INCLUDES_DEFAULT])
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# search for header under HEADER-PREFIXES
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m4_foreach_w([prefix], [$4], [
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[$1][_CFLAGS]=["-I$lt_sysroot$_prefixdir/include/]prefix["]
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CFLAGS="$orig_CFLAGS $[$1][_CFLAGS]"
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AS_UNSET([header_cache])
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AC_CHECK_HEADER([$3], [
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_header_found=1
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break
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], [], [AC_INCLUDES_DEFAULT])
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])
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AS_VAR_POPDEF([header_cache])
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done
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AS_IF([test "x$_header_found" = "x1"], [
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AS_IF([test "x$_library_found" = x], [
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[$1][_LIBS]="$[$1]_LIBS -l[$5]"
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])
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LDFLAGS="$LDFLAGS $[$1][_LIBS]"
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_libcheck=1
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m4_ifval([$6],
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[m4_foreach_w([func], [$6], [AC_CHECK_LIB([$5], func, [:], [_libcheck=])])],
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[AC_CHECK_LIB([$5], [main], [:], [_libcheck=])])
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AS_IF([test "x$_libcheck" = "x1"], [_library_found=1],
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[test "x$_library_found" = "x1"], [
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# if pkg-config or the user set LIBS, fail if the library is unusable
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AC_MSG_FAILURE([library [$5] is not usable])
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])
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], [test "x$_library_found" = "x1"], [
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# if the user set LIBS, fail if we didn't find the header
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AC_MSG_FAILURE([cannot find header [$3] for library [$5]])
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])
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AX_RESTORE_FLAGS
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AS_IF([test "x$_header_found" = "x1" && test "x$_library_found" = "x1"], [
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AC_SUBST([$1]_CFLAGS)
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AC_SUBST([$1]_LIBS)
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AS_IF([test "x$_pc_found" = "x1"], [
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AC_SUBST([$1]_PC, [$2])
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])
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AC_DEFINE([HAVE_][$1], [1], [Define if you have [$5]])
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$7
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],[dnl ELSE
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AC_SUBST([$1]_CFLAGS, [])
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AC_SUBST([$1]_LIBS, [])
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AC_MSG_WARN([cannot find [$5] via pkg-config or in the standard locations])
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$8
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])
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])
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