From ca7cd666949b68bf41a32de38ee38e332e89863b Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Mon, 11 Feb 2008 01:23:01 +0100
Subject: Add all necessary header files - compilation fix for various cases

Allow iptables to compile without a kernel source tree. This
implies fixing build for older kernels, such as 2.6.17 which
lack xt_SECMARK.h.
---
 configure.ac | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 9c426818..10d43802 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,8 +8,6 @@ AM_PROG_CC_C_O
 AC_DISABLE_STATIC
 AC_PROG_LIBTOOL
 
-kbuilddir="/lib/modules/$(uname -r)/build";
-ksourcedir="/lib/modules/$(uname -r)/source";
 AC_ARG_WITH([kernel],
 	AS_HELP_STRING([--with-kernel=PATH],
 	[Path to kernel source/build directory]),
@@ -45,7 +43,13 @@ regular_CFLAGS="-D_LARGEFILE_SOURCE=1 -D_LARGE_FILES -D_FILE_OFFSET_BITS=64 \
 	-Wmissing-prototypes -Wredundant-decls -Wshadow -Wstrict-prototypes \
 	-Winline -pipe -DIPTABLES_VERSION=\\\"$PACKAGE_VERSION\\\" \
 	-DXTABLES_LIBDIR=\\\"\${xtlibdir}\\\" -DXTABLES_INTERNAL";
-kinclude_CFLAGS="-I\"$kbuilddir/include\" -I\"$ksourcedir/include\"";
+kinclude_CFLAGS="";
+if [[ -n "$kbuilddir" ]]; then
+	kinclude_CFLAGS="$kinclude_CFLAGS -I $kbuilddir/include";
+fi;
+if [[ -n "$ksourcedir" ]]; then
+	kinclude_CFLAGS="$kinclude_CFLAGS -I $ksourcedir/include";
+fi;
 
 AC_SUBST([regular_CFLAGS kinclude_CFLAGS])
 AC_SUBST([kbuilddir])
-- 
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