[PATCH iproute2 v2 2/3] configure: add the --prefix option

[Andrea Claudi <aclaudi@redhat.com>]

This commit add the '--prefix' option to the iproute2 configure script.

This mimics the '--prefix' option that autotools configure provides, and
will be used later to allow users or packagers to set the lib directory.

Signed-off-by: Andrea Claudi <aclaudi@redhat.com>
---
 configure | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/configure b/configure
index cebfda6e..f51247a8 100755
--- a/configure
+++ b/configure
@@ -148,6 +148,15 @@ EOF
 	rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest
 }
 
+check_prefix()
+{
+	if [ -n "$PREFIX" ]; then
+		prefix="$PREFIX"
+	else
+		prefix="/usr"
+	fi
+}
+
 check_ipt()
 {
 	if ! grep TC_CONFIG_XT $CONFIG > /dev/null; then
@@ -490,6 +499,7 @@ Usage: $0 [OPTIONS]
 	--libbpf_force		Enable/disable libbpf by force. Available options:
 				  on: require link against libbpf, quit config if no libbpf support
 				  off: disable libbpf probing
+	--prefix		Path prefix of the lib files to install
 	-h | --help		Show this usage info
 EOF
 	exit $1
@@ -525,6 +535,13 @@ else
 					usage 1
 				fi
 				shift ;;
+			--prefix*)
+				PREFIX="${1#*=}"
+				if [ "$PREFIX" == "--prefix" ]; then
+					PREFIX="$2"
+					shift
+				fi
+				shift ;;
 			-h | --help)
 				usage 0 ;;
 			"")
@@ -558,6 +575,7 @@ if ! grep -q TC_CONFIG_NO_XT $CONFIG; then
 fi
 
 echo
+check_prefix
 if ! grep -q TC_CONFIG_NO_XT $CONFIG; then
 	echo -n "iptables modules directory: "
 	check_ipt_lib_dir
-- 
2.31.1