[PATCH iproute2 v4 2/5] configure: fix parsing issue on libbpf_dir option
From: Andrea Claudi <hidden>
Date: 2021-10-07 13:41:15
Subsystem:
the rest · Maintainer:
Linus Torvalds
configure is stuck in an endless loop if '--libbpf_dir' option is used
without a value:
$ ./configure --libbpf_dir
./configure: line 515: shift: 2: shift count out of range
./configure: line 515: shift: 2: shift count out of range
[...]
Fix it checking that a value is provided with the option.
Fixes: 7ae2585b865a ("configure: convert LIBBPF environment variables to command-line options")
Signed-off-by: Andrea Claudi <redacted>
---
configure | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/configure b/configure
index 05f75437..27db3ecb 100755
--- a/configure
+++ b/configure@@ -486,7 +486,7 @@ usage() cat <<EOF Usage: $0 [OPTIONS] --include_dir <dir> Path to iproute2 include dir - --libbpf_dir Path to libbpf DESTDIR + --libbpf_dir <dir> Path to libbpf DESTDIR --libbpf_force Enable/disable libbpf by force. Available options: on: require link against libbpf, quit config if no libbpf support off: disable libbpf probing
@@ -512,6 +512,7 @@ else shift 2 ;; --libbpf_dir) LIBBPF_DIR="$2" + check_value "$LIBBPF_DIR" shift 2 ;; --libbpf_force) if [ "$2" != 'on' ] && [ "$2" != 'off' ]; then
--
2.31.1