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From 68e77a26111ee6b8f10c735a76891a7de6d57ee6 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@inai.de>
Date: Tue, 1 Jan 2013 22:47:51 +0000
Subject: [PATCH] build: resolve link failure for ip6t_NETMAP
Link stage of libip6t_NETMAP failed since recently.
CCLD libip6t_NETMAP.so
/usr/lib64/gcc/x86_64-suse-linux/4.7/../../../../x86_64-suse-linux/bin/ld:
cannot find -lip6tc
libip6t_NETMAP.c uses the "ipv6_prefix_length" function from
libip6tc.so; "-lip6tc" is used in the Makefile, but, the directory to
it is not specified.
Why does the link succeed for some people? Because
/usr/lib(64)/libip6tc.so satisfies -lip6tc, but not all environments,
especially those without iptables development files, have that file,
hence this link error can happen.
By suggestion of Mike Frysinger, this patch uses libtool to produce
and link the plugins.
Upstream-Status: Backport
Signed-off-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
extensions/GNUmakefile.in | 20 ++++++++++++--------
1 files changed, 12 insertions(+), 8 deletions(-)
diff --git a/extensions/GNUmakefile.in b/extensions/GNUmakefile.in
index e71e3ff..adad4d6 100644
--- a/extensions/GNUmakefile.in
+++ b/extensions/GNUmakefile.in
@@ -33,6 +33,7 @@ AM_VERBOSE_CXX = @echo " CXX " $@;
AM_VERBOSE_CXXLD = @echo " CXXLD " $@;
AM_VERBOSE_AR = @echo " AR " $@;
AM_VERBOSE_GEN = @echo " GEN " $@;
+AM_VERBOSE_NULL = @
endif
#
@@ -75,7 +76,7 @@ install: ${targets_install}
if test -n "${targets_install}"; then install -pm0755 $^ "${DESTDIR}${xtlibdir}/"; fi;
clean:
- rm -f *.o *.oo *.so *.a {matches,targets}.man initext.c initext4.c initext6.c;
+ rm -f *.la *.o *.lo *.so *.a {matches,targets}.man initext.c initext4.c initext6.c;
rm -f .*.d .*.dd;
distclean: clean
@@ -89,19 +90,22 @@ init%.o: init%.c
#
# Shared libraries
#
-lib%.so: lib%.oo
- ${AM_VERBOSE_CCLD} ${CCLD} ${AM_LDFLAGS} -shared ${LDFLAGS} -o $@ $< -L../libxtables/.libs -lxtables ${$*_LIBADD};
+lib%.so: lib%.la
+ ${AM_VERBOSE_NULL} ln -fs .libs/$@ $@
-lib%.oo: ${srcdir}/lib%.c
- ${AM_VERBOSE_CC} ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -D_INIT=lib$*_init -DPIC -fPIC ${CFLAGS} -o $@ -c $<;
+lib%.la: lib%.lo
+ ${AM_VERBOSE_CCLD} ../libtool ${AM_LIBTOOL_SILENT} --tag=CC --mode=link ${CCLD} ${AM_LDFLAGS} -module ${LDFLAGS} -o $@ $< ../libxtables/libxtables.la ${$*_LIBADD} -rpath ${xtlibdir}
+
+lib%.lo: ${srcdir}/lib%.c
+ ${AM_VERBOSE_CC} ../libtool ${AM_LIBTOOL_SILENT} --tag=CC --mode=compile ${CC} ${AM_CPPFLAGS} ${AM_DEPFLAGS} ${AM_CFLAGS} -D_INIT=lib$*_init ${CFLAGS} -o $@ -c $<
libxt_NOTRACK.so: libxt_CT.so
- ln -fs $< $@
+ ${AM_VERBOSE_GEN} ln -fs $< $@
libxt_state.so: libxt_conntrack.so
- ln -fs $< $@
+ ${AM_VERBOSE_GEN} ln -fs $< $@
# Need the LIBADDs in iptables/Makefile.am too for libxtables_la_LIBADD
-ip6t_NETMAP_LIBADD = -lip6tc
+ip6t_NETMAP_LIBADD = ../libiptc/libip6tc.la
xt_RATEEST_LIBADD = -lm
xt_statistic_LIBADD = -lm
--
1.7.2.5
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