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Date: Thu, 14 Oct 2021 10:50:55 +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 v5 7/7] configure: add the --libdir option This commit allows users/packagers to choose a lib directory to store iproute2 lib files. At the moment iproute2 ship lib files in /usr/lib and offers no way to modify this setting. However, according to the FHS, distros may choose "one or more variants of the /lib directory on systems which support more than one binary format" (e.g. /usr/lib64 on Fedora). As Luca states in commit a3272b93725a ("configure: restore backward compatibility"), packaging systems may assume that 'configure' is from autotools, and try to pass it some parameters. Allowing the '--libdir=/path/to/libdir' syntax, we can use this to our advantage, and let the lib directory to be chosen by the distro packaging system. Note that LIBDIR uses "\${prefix}/lib" as default value because autoconf allows this to be expanded to the --prefix value at configure runtime. "\${prefix}" is replaced with the PREFIX value in check_lib_dir(). Signed-off-by: Andrea Claudi <aclaudi@...hat.com> --- Makefile | 7 ++++--- configure | 18 ++++++++++++++++++ 2 files changed, 22 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 5eddd504..f6214534 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 # Top level Makefile for iproute2 +-include config.mk + ifeq ("$(origin V)", "command line") VERBOSE = $(V) endif @@ -13,7 +15,6 @@ MAKEFLAGS += --no-print-directory endif PREFIX?=/usr -LIBDIR?=$(PREFIX)/lib SBINDIR?=/sbin CONFDIR?=/etc/iproute2 NETNS_RUN_DIR?=/var/run/netns @@ -69,7 +70,7 @@ SUBDIRS=lib ip tc bridge misc netem genl tipc devlink rdma dcb man vdpa LIBNETLINK=../lib/libutil.a ../lib/libnetlink.a LDLIBS += $(LIBNETLINK) -all: config +all: config.mk @set -e; \ for i in $(SUBDIRS); \ do echo; echo $$i; $(MAKE) -C $$i; done @@ -89,7 +90,7 @@ help: @echo "Make Arguments:" @echo " V=[0|1] - set build verbosity level" -config: +config.mk: @if [ ! -f config.mk -o configure -nt config.mk ]; then \ sh configure $(KERNEL_INCLUDE); \ fi diff --git a/configure b/configure index 05e23eff..8ddff43c 100755 --- a/configure +++ b/configure @@ -4,6 +4,7 @@ INCLUDE="$PWD/include" PREFIX="/usr" +LIBDIR="\${prefix}/lib" # Output file which is input to Makefile CONFIG=config.mk @@ -149,6 +150,15 @@ EOF rm -f $TMPDIR/ipttest.c $TMPDIR/ipttest } +check_lib_dir() +{ + LIBDIR=$(echo $LIBDIR | sed "s|\${prefix}|$PREFIX|") + + echo -n "lib directory: " + echo "$LIBDIR" + echo "LIBDIR:=$LIBDIR" >> $CONFIG +} + check_ipt() { if ! grep TC_CONFIG_XT $CONFIG > /dev/null; then @@ -487,6 +497,7 @@ usage() cat <<EOF Usage: $0 [OPTIONS] --include_dir <dir> Path to iproute2 include dir + --libdir <dir> Path to iproute2 lib dir --libbpf_dir <dir> Path to libbpf DESTDIR --libbpf_force <on|off> Enable/disable libbpf by force. Available options: on: require link against libbpf, quit config if no libbpf support @@ -508,6 +519,11 @@ else INCLUDE="$1" ;; --include_dir=*) INCLUDE="${1#*=}" ;; + --libdir) + shift + LIBDIR="$1" ;; + --libdir=*) + LIBDIR="${1#*=}" ;; --libbpf_dir) shift LIBBPF_DIR="$1" ;; @@ -544,6 +560,7 @@ if [ "${LIBBPF_FORCE-unused}" != "unused" ]; then fi fi [ -z "$PREFIX" ] && usage 1 +[ -z "$LIBDIR" ] && usage 1 echo "# Generated config based on" $INCLUDE >$CONFIG quiet_config >> $CONFIG @@ -568,6 +585,7 @@ if ! grep -q TC_CONFIG_NO_XT $CONFIG; then fi echo +check_lib_dir if ! grep -q TC_CONFIG_NO_XT $CONFIG; then echo -n "iptables modules directory: " check_ipt_lib_dir -- 2.31.1
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