summaryrefslogtreecommitdiffstats
path: root/m4/ld-no-undefined.m4
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:22:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:22:51 +0000
commit9ada0093e92388590c7368600ca4e9e3e376f0d0 (patch)
treea56fe41110023676d7082028cbaa47ca4b6e6164 /m4/ld-no-undefined.m4
parentInitial commit. (diff)
downloadpam-9ada0093e92388590c7368600ca4e9e3e376f0d0.tar.xz
pam-9ada0093e92388590c7368600ca4e9e3e376f0d0.zip
Adding upstream version 1.5.2.upstream/1.5.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'm4/ld-no-undefined.m4')
-rw-r--r--m4/ld-no-undefined.m415
1 files changed, 15 insertions, 0 deletions
diff --git a/m4/ld-no-undefined.m4 b/m4/ld-no-undefined.m4
new file mode 100644
index 0000000..6f342d0
--- /dev/null
+++ b/m4/ld-no-undefined.m4
@@ -0,0 +1,15 @@
+#!/usr/bin/m4
+dnl Check whether ld supports --no-undefined
+
+AC_DEFUN([PAM_LD_NO_UNDEFINED], [dnl
+ AC_CACHE_CHECK([whether ld supports --no-undefined],
+ [pam_cv_ld_no_undefined],
+ [saved_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -Wl,--no-undefined"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM(,)],
+ [pam_cv_ld_no_undefined=yes],
+ [pam_cv_ld_no_undefined=no])
+ LDFLAGS="$saved_LDFLAGS"])
+ AS_IF([test $pam_cv_ld_no_undefined = yes],
+ [LDFLAGS="$LDFLAGS -Wl,--no-undefined"])
+])