diff options
Diffstat (limited to 'aclocal.m4')
| -rw-r--r-- | aclocal.m4 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4 index 23e6bc08bf..e09bda8440 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -484,6 +484,31 @@ AC_SUBST([LdXFlag]) ])# FP_PROG_LD_X +# FP_PROG_LD_BUILD_ID +# ------------ + +# Sets the output variable LdHasBuildId to YES if ld supports +# --build-id, or NO otherwise. +AC_DEFUN([FP_PROG_LD_BUILD_ID], +[ +AC_CACHE_CHECK([whether ld understands --build-id], [fp_cv_ld_build_id], +[echo 'foo() {}' > conftest.c +${CC-cc} -c conftest.c +if ${LdCmd} -r --build-id=none -o conftest2.o conftest.o > /dev/null 2>&1; then + fp_cv_ld_build_id=yes +else + fp_cv_ld_build_id=no +fi +rm -rf conftest*]) +if test "$fp_cv_ld_build_id" = yes; then + LdHasBuildId=YES +else + LdHasBuildId=NO +fi +AC_SUBST([LdHasBuildId]) +])# FP_PROG_LD_BUILD_ID + + # FP_PROG_LD_IS_GNU # ----------------- # Sets the output variable LdIsGNULd to YES or NO, depending on whether it is |