From f681b29fd605db777d653f8ee7fed545676998c9 Mon Sep 17 00:00:00 2001
From: Thorsten Kukuk <kukuk@thkukuk.de>
Date: Tue, 20 Jun 2006 11:21:07 +0000
Subject: Relevant BUGIDs:

Purpose of commit: new feature

Commit summary:
---------------

2006-06-20  Thorsten Kukuk  <kukuk@thkukuk.de>

        * m4/ld-as-needed.m4: New.
        * m4/ld-O1.m4: New.
        * configure.in: Call PAM_LD_AS_NEEDED and PAM_LD_O1,
        require docbook version 4.4.
---
 m4/ld-O1.m4        | 24 ++++++++++++++++++++++++
 m4/ld-as-needed.m4 | 24 ++++++++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 m4/ld-O1.m4
 create mode 100644 m4/ld-as-needed.m4

(limited to 'm4')

diff --git a/m4/ld-O1.m4 b/m4/ld-O1.m4
new file mode 100644
index 00000000..c8630740
--- /dev/null
+++ b/m4/ld-O1.m4
@@ -0,0 +1,24 @@
+# ld-O1.m4 serial 2
+
+# Test if ld supports -O1
+
+AC_DEFUN([PAM_LD_O1],
+  [
+    AC_CACHE_CHECK(whether ld supports -O1,
+      pam_cv_ld_O1, [ dnl
+    cat > conftest.c <<EOF
+int main (void) { return 0; }
+EOF
+     if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
+                                 -o conftest.o conftest.c
+                                 -Wl,-O1 1>&AS_MESSAGE_LOG_FD])
+  then
+    pam_cv_ld_O1=yes
+  else
+    pam_cv_ld_O1=no
+  fi
+  rm -f conftest*])
+  AC_SUBST(pam_cv_ld_as_needed)
+  LDFLAGS="$LDFLAGS -Wl,-O1"
+  ]
+)
diff --git a/m4/ld-as-needed.m4 b/m4/ld-as-needed.m4
new file mode 100644
index 00000000..cd81f91b
--- /dev/null
+++ b/m4/ld-as-needed.m4
@@ -0,0 +1,24 @@
+# ld-as-needed.m4 serial 2
+
+# Test if ld supports --as-needed
+
+AC_DEFUN([PAM_LD_AS_NEEDED],
+  [
+    AC_CACHE_CHECK(whether ld supports --as-needed,
+      pam_cv_ld_as_needed, [ dnl
+    cat > conftest.c <<EOF
+int main (void) { return 0; }
+EOF
+     if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
+                                 -o conftest.o conftest.c
+                                 -Wl,--as-needed 1>&AS_MESSAGE_LOG_FD])
+  then
+    pam_cv_ld_as_needed=yes
+  else
+    pam_cv_ld_as_needed=no
+  fi
+  rm -f conftest*])
+  AC_SUBST(pam_cv_ld_as_needed)
+  LDFLAGS="$LDFLAGS -Wl,--as-needed"
+  ]
+)
-- 
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