netdev - [PATCH iproute2 v4 4/5] configure: add the --prefix option

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Date:   Thu,  7 Oct 2021 15:40:04 +0200
From:   Andrea Claudi <aclaudi@...hat.com>
To:     netdev@...r.kernel.org
Cc:     stephen@...workplumber.org, dsahern@...il.com, bluca@...ian.org,
        phil@....cc, haliu@...hat.com
Subject: [PATCH iproute2 v4 4/5] configure: add the --prefix option

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@...hat.com>
---
 configure | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/configure b/configure
index 08e7410b..2e5ed87e 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 <on|off>		Enable/disable libbpf by force.
 					  on: require link against libbpf, quit config if no libbpf support
 					  off: disable libbpf probing
+	--prefix <dir>			Path prefix of the lib files to install
 	-h | --help			Show this usage info
 EOF
 	exit $1
@@ -537,6 +547,14 @@ else
 				LIBBPF_FORCE="${1#*=}"
 				check_onoff "$LIBBPF_FORCE"
 				shift ;;
+			--prefix)
+				PREFIX="$2"
+				check_value "$PREFIX"
+				shift 2 ;;
+			--prefix=*)
+				PREFIX="${1#*=}"
+				check_value "$PREFIX"
+				shift ;;
 			-h | --help)
 				usage 0 ;;
 			"")
@@ -571,6 +589,7 @@ 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