diff --git a/net/flow-tools/Makefile b/net/flow-tools/Makefile
index 1874f5b86..611b2b23e 100644
--- a/net/flow-tools/Makefile
+++ b/net/flow-tools/Makefile
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2007 OpenWrt.org
+# Copyright (C) 2007-2014 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=flow-tools
 PKG_VERSION:=0.68
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=ftp://ftp.eng.oar.net/pub/flow-tools/
diff --git a/net/flow-tools/patches/090-configure_cflags_override.patch b/net/flow-tools/patches/090-configure_cflags_override.patch
new file mode 100644
index 000000000..695d8b7b4
--- /dev/null
+++ b/net/flow-tools/patches/090-configure_cflags_override.patch
@@ -0,0 +1,11 @@
+--- a/configure
++++ b/configure
+@@ -1662,7 +1662,7 @@ INSTALL_STRIP_PROGRAM="\${SHELL} \$(inst
+ 
+ 
+ 
+-CFLAGS="-g -Wall"
++CFLAGS="${CFLAGS} -g -Wall"
+ 
+ ac_ext=c
+ ac_cpp='$CPP $CPPFLAGS'