Frank Denis
11 years ago
1 changed files with 29 additions and 0 deletions
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# ld-output-def.m4 serial 2 |
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dnl Copyright (C) 2008-2013 Free Software Foundation, Inc. |
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dnl This file is free software; the Free Software Foundation |
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dnl gives unlimited permission to copy and/or distribute it, |
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dnl with or without modifications, as long as this notice is preserved. |
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dnl From Simon Josefsson |
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|
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# gl_LD_OUTPUT_DEF() |
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# ------------- |
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# Check if linker supports -Wl,--output-def and define automake |
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# conditional HAVE_LD_OUTPUT_DEF if it is. |
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AC_DEFUN([gl_LD_OUTPUT_DEF], |
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[ |
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AC_CACHE_CHECK([if gcc/ld supports -Wl,--output-def], |
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[gl_cv_ld_output_def], |
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[if test "$enable_shared" = no; then |
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gl_cv_ld_output_def="not needed, shared libraries are disabled" |
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else |
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gl_ldflags_save=$LDFLAGS |
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LDFLAGS="-Wl,--output-def,conftest.def" |
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AC_LINK_IFELSE([AC_LANG_PROGRAM([])], |
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[gl_cv_ld_output_def=yes], |
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[gl_cv_ld_output_def=no]) |
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rm -f conftest.def |
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LDFLAGS="$gl_ldflags_save" |
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fi]) |
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AM_CONDITIONAL([HAVE_LD_OUTPUT_DEF], test "x$gl_cv_ld_output_def" = "xyes") |
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]) |
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