If building statically, with libpcap built with libnl support, linking
will fail, as the compiler won't be able to find the libnl symbols
since static libraries don't contain dependency information. To fix
this, use pkg-config to find the flags for linking libpcap, since the
pkg-config files contain the neccesary dependency information.
Signed-off-by: Alyssa Ross <hi@xxxxxxxxx>
---
configure.ac | 3 ++-
utils/Makefile.am | 6 +++---
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/configure.ac b/configure.ac
index bc2ed47b..e0bb26aa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -114,7 +114,8 @@ AM_CONDITIONAL([ENABLE_NFTABLES], [test "$enable_nftables" = "yes"])
AM_CONDITIONAL([ENABLE_CONNLABEL], [test "$enable_connlabel" = "yes"])
if test "x$enable_bpfc" = "xyes" || test "x$enable_nfsynproxy" = "xyes"; then
- AC_CHECK_LIB(pcap, pcap_compile,, AC_MSG_ERROR(missing libpcap library required by bpf compiler or nfsynproxy tool))
+ PKG_CHECK_MODULES([libpcap], [libpcap], [], [
+ AC_MSG_ERROR(missing libpcap library required by bpf compiler or nfsynproxy tool)])
fi
PKG_CHECK_MODULES([libnfnetlink], [libnfnetlink >= 1.0],
diff --git a/utils/Makefile.am b/utils/Makefile.am
index e9eec48f..34056514 100644
--- a/utils/Makefile.am
+++ b/utils/Makefile.am
@@ -2,7 +2,7 @@
AM_CFLAGS = ${regular_CFLAGS}
AM_CPPFLAGS = ${regular_CPPFLAGS} -I${top_builddir}/include \
- -I${top_srcdir}/include ${libnfnetlink_CFLAGS}
+ -I${top_srcdir}/include ${libnfnetlink_CFLAGS} ${libpcap_CFLAGS}
AM_LDFLAGS = ${regular_LDFLAGS}
sbin_PROGRAMS =
@@ -25,12 +25,12 @@ endif
if ENABLE_BPFC
man_MANS += nfbpf_compile.8
sbin_PROGRAMS += nfbpf_compile
-nfbpf_compile_LDADD = -lpcap
+nfbpf_compile_LDADD = ${libpcap_LIBS}
endif
if ENABLE_SYNCONF
sbin_PROGRAMS += nfsynproxy
-nfsynproxy_LDADD = -lpcap
+nfsynproxy_LDADD = ${libpcap_LIBS}
endif
CLEANFILES = nfnl_osf.8 nfbpf_compile.8
base-commit: 09f0bfe2032454d21e3650e7ac75c4dc53f3c881
--
2.37.1
