libiptc: build with -Wl,--no-as-needed
Since libiptc does not reference any symbols in libip(4|6)tc, the linker
may ignore the dependencies. Use --no-as-needed to explicitly force a
DT_NEEDED entry.
References: http://bugzilla.netfilter.org/show_bug.cgi?id=674
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
diff --git a/configure.ac b/configure.ac
index 3b26f54..6010afd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,6 +52,11 @@
[Path to the pkgconfig directory [[LIBDIR/pkgconfig]]]),
[pkgconfigdir="$withval"], [pkgconfigdir='${libdir}/pkgconfig'])
+libiptc_LDFLAGS2="";
+AX_CHECK_LINKER_FLAGS([-Wl,--no-as-needed],
+ [libiptc_LDFLAGS2="-Wl,--no-as-needed"])
+AC_SUBST([libiptc_LDFLAGS2])
+
blacklist_modules="";
AC_CHECK_HEADER([linux/dccp.h])