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Diffstat (limited to 'm4/lib-ignore.m4')
| -rw-r--r-- | m4/lib-ignore.m4 | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/m4/lib-ignore.m4 b/m4/lib-ignore.m4 deleted file mode 100644 index e518f8113..000000000 --- a/m4/lib-ignore.m4 +++ /dev/null @@ -1,43 +0,0 @@ -# If possible, ignore libraries that are not depended on. - -dnl Copyright (C) 2006 Free Software Foundation, Inc. -dnl This file is free software; the Free Software Foundation -dnl gives unlimited permission to copy and/or distribute it, -dnl with or without modifications, as long as this notice is preserved. - -dnl Written by Paul Eggert. - -AC_DEFUN([gl_IGNORE_UNUSED_LIBRARIES], -[ - AC_CACHE_CHECK([for flag to ignore unused libraries], - [gl_cv_ignore_unused_libraries], - [gl_cv_ignore_unused_libraries=none - gl_saved_ldflags=$LDFLAGS - gl_saved_libs=$LIBS - # Link with -lm to detect binutils 2.16 bug with --as-needed; see - # <http://lists.gnu.org/archive/html/bug-gnulib/2006-06/msg00131.html>. - LIBS="$LIBS -lm" - # Use long option sequences like '-z ignore' to test for the feature, - # to forestall problems with linkers that have -z, -i, -g, -n, etc. flags. - # GCC + binutils likes '-Wl,--as-needed'. - # GCC + Solaris ld likes '-Wl,-z,ignore'. - # Sun C likes '-z ignore'. - # Don't try bare '--as-needed'; nothing likes it and the HP-UX 11.11 - # native cc issues annoying warnings and then ignores it, - # which would cause us to incorrectly conclude that it worked. - for gl_flags in \ - '-Wl,--as-needed' \ - '-Wl,-z,ignore' \ - '-z ignore' - do - LDFLAGS="$gl_flags $LDFLAGS" - AC_LINK_IFELSE([AC_LANG_PROGRAM()], - [gl_cv_ignore_unused_libraries=$gl_flags]) - LDFLAGS=$gl_saved_ldflags - test "$gl_cv_ignore_unused_libraries" != none && break - done - LIBS=$gl_saved_libs]) - - test "$gl_cv_ignore_unused_libraries" != none && - LDFLAGS="$LDFLAGS $gl_cv_ignore_unused_libraries" -]) |