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Diffstat (limited to 'm4/ld-z-now.m4')
| -rw-r--r-- | m4/ld-z-now.m4 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/m4/ld-z-now.m4 b/m4/ld-z-now.m4 new file mode 100644 index 00000000..1bc82594 --- /dev/null +++ b/m4/ld-z-now.m4 @@ -0,0 +1,16 @@ +#!/usr/bin/m4 +dnl Check whether ld supports "-z now" + +AC_DEFUN([PAM_LD_Z_NOW], [dnl + AC_CACHE_CHECK([whether ld supports "-z now"], + [pam_cv_ld_z_now], + [saved_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -Wl,-z,now" + AC_LINK_IFELSE([AC_LANG_PROGRAM(,)], + [pam_cv_ld_z_now=yes], + [pam_cv_ld_z_now=no]) + LDFLAGS="$saved_LDFLAGS"]) + AS_IF([test $pam_cv_ld_z_now = yes], + [ZNOW_LDFLAGS="-Wl,-z,now"], + [ZNOW_LDFLAGS=]) +]) |