Imported Upstream version 3.3.0

[debian/amanda] / config / amanda / as_needed.m4

diff --git a/config/amanda/as_needed.m4 b/config/amanda/as_needed.m4
new file mode 100644 (file)
index 0000000..a51a991
--- /dev/null
+++ b/config/amanda/as_needed.m4
@@ -0,0 +1,25 @@
+# SYNOPSIS
+#
+#   AMANDA_AS_NEEDED
+#
+# OVERVIEW
+#   Add --as-needed ld flag to LD_FLAGS except when using readline. On
+#   some platforms, readline does not correctly advertise it's requirements,
+#   causing ld errors.  In Amanda, readline is used by amrecover/amoldrecover.
+#
+AC_DEFUN([AMANDA_AS_NEEDED], [
+    AC_ARG_ENABLE([as-needed],
+       AS_HELP_STRING([--enable-as-needed],
+                      [enable use od --as-needed linker flag]),
+       [ WANT_AS_NEEDED=$enableval ], [ WANT_AS_NEEDED=no ])
+
+    AM_CONDITIONAL([WANT_AS_NEEDED], [test x"$WANT_AS_NEEDED" = x"yes"])
+
+    if test x"$WANT_AS_NEEDED" = x"yes"; then
+       AS_NEEDED_FLAGS="-Wl,--as-needed"
+    else
+       AS_NEEDED_FLAGS=""
+    fi
+    AC_SUBST(AS_NEEDED_FLAGS)
+])
+