The ld-version.sh script fails on some versions of awk with the
following error, resulting in build failures for MIPS:
awk: scripts/ld-version.sh: line 4: regular expression compile failed (missing
'(')
This is due to the regular expression ".*)", meant to strip off the
beginning of the ld version string up to the close bracket, however
brackets have a meaning in regular expressions, so lets escape it so
that awk doesn't expect a corresponding open bracket.
Fixes: ccbef1674a15 ("Kbuild, lto: add ld-version and ld-ifversion ...")
Reported-by: Geert Uytterhoeven <ge...@linux-m68k.org>
Signed-off-by: James Hogan <james.ho...@imgtec.com>
Cc: Ralf Baechle <r...@linux-mips.org>
Cc: Michal Marek <mma...@suse.com>
Cc: Andi Kleen <a...@linux.intel.com>
Cc: "Michael S. Tsirkin" <m...@redhat.com>
Cc: linux-m...@linux-mips.org
Cc: linux-kbu...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: <sta...@vger.kernel.org> # 4.4.x-
---
I've only tested this with GNU Awk 4.0.2, which seems a bit more
lenient than whatever version of awk Geert's build machine is using.
I'd appreciated if somebody experiencing the error could give this patch
a spin to check it fixes it.
---
scripts/ld-version.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index d154f0877fd8..7bfe9fa1c8dc 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -1,7 +1,7 @@
#!/usr/bin/awk -f
# extract linker version number from stdin and turn into single number
{
- gsub(".*)", "");
+ gsub(".*\\)", "");
gsub(".*version ", "");
gsub("-.*", "");
split($1,a, ".");
--
2.4.10
