From 2d38d16d86db941fcb4d4fb8ad761e7e163c01e5 Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Sun, 16 Apr 2017 07:41:38 +0300
Subject: [PATCH] flowtop: take PKG_CONFIG into account for
 libnetfilter_conntrack

Use $PKG_CONFIG to determine the linker flags for libnetfilter_conntrack. This
fixes static link failure like the following:

  LD	flowtop
.../usr/x86_64-buildroot-linux-musl/sysroot/usr/lib/../lib64/libnetfilter_conntrack.a(main.o): In function `nfct_open_nfnl':
main.c:(.text+0x52): undefined reference to `nfnl_subsys_open'
main.c:(.text+0x69): undefined reference to `nfnl_subsys_close'
main.c:(.text+0x87): undefined reference to `nfnl_subsys_open'
main.c:(.text+0xa3): undefined reference to `nfnl_subsys_close'
.../usr/x86_64-buildroot-linux-musl/sysroot/usr/lib/../lib64/libnetfilter_conntrack.a(main.o): In function `nfct_open':
main.c:(.text+0xc9): undefined reference to `nfnl_open'
main.c:(.text+0xf0): undefined reference to `nfnl_close'
...

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---

Patch status: sent upstream
http://www.mail-archive.com/netsniff-ng%40googlegroups.com/msg01971.html

 flowtop/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flowtop/Makefile b/flowtop/Makefile
index effe7eb33fc3..e001ce8aaf13 100644
--- a/flowtop/Makefile
+++ b/flowtop/Makefile
@@ -1,5 +1,5 @@
 flowtop-libs =	-lurcu \
-		-lnetfilter_conntrack \
+		$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) $(PKG_CONFIG) --libs libnetfilter_conntrack 2> /dev/null ) \
 		$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) $(PKG_CONFIG) --libs ncurses 2> /dev/null \
 			|| echo '-lncurses') \
 		$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) $(PKG_CONFIG) --libs tinfo 2> /dev/null ) \
-- 
2.11.0