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| author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2010-12-06 18:27:43 +0100 |
|---|---|---|
| committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2010-12-06 19:34:03 +0100 |
| commit | 027fb69593e471510701ae4f556f84b4c5d7ccc0 (patch) | |
| tree | 77a25ef7f6ca3137fe85891d52d120cde8b4a11a /m4 | |
| parent | 2cd0637c786e4753d2de2c1b28830167f649b222 (diff) | |
gtk: hide unwanted public symbols
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/ld-version.m4 | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/m4/ld-version.m4 b/m4/ld-version.m4 new file mode 100644 index 0000000..589fb71 --- /dev/null +++ b/m4/ld-version.m4 @@ -0,0 +1,34 @@ +dnl Check whether the linker supports --version-script. +dnl +dnl Probes whether the linker supports --version-script with a simple version +dnl script that only defines a single version. Sets the Automake conditional +dnl HAVE_LD_VERSION_SCRIPT based on whether it is supported. +dnl +dnl Written by Russ Allbery <rra@stanford.edu> +dnl Based on the gnulib ld-version-script macro from Simon Josefsson +dnl Copyright 2010 Board of Trustees, Leland Stanford Jr. University +dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. +dnl +dnl This file is free software; the Free Software Foundation gives unlimited +dnl permission to copy and/or distribute it, with or without modifications, as +dnl long as this notice is preserved. + +AC_DEFUN([RRA_LD_VERSION_SCRIPT], +[AC_CACHE_CHECK([if -Wl,--version-script works], [rra_cv_ld_version_script], + [save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" + cat > conftest.map <<EOF +VERSION_1 { + global: + sym; + + local: + *; +}; +EOF + AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], + [rra_cv_ld_version_script=yes], [rra_cv_ld_version_script=no]) + rm -f conftest.map + LDFLAGS="$save_LDFLAGS"]) + AM_CONDITIONAL([HAVE_LD_VERSION_SCRIPT], + [test x"$rra_cv_ld_version_script" = xyes])]) |