ld-version: Fix awk regex compile failure
authorJames Hogan <james.hogan@imgtec.com>
Tue, 8 Mar 2016 16:47:53 +0000 (16:47 +0000)
committerRalf Baechle <ralf@linux-mips.org>
Sun, 13 Mar 2016 09:54:42 +0000 (10:54 +0100)
commit4b7b1ef2c2f83d702272555e8adb839a50ba0f8e
tree5c45bc4e64ec0d38db6e4e08f0a657e4fb0fb1a8
parentba9e72c2290fcdeeff5f0105590a03e0f341b059
ld-version: Fix awk regex compile failure

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 <geert@linux-m68k.org>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Tested-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Cc: Michal Marek <mmarek@suse.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # 4.4.x-
Patchwork: https://patchwork.linux-mips.org/patch/12838/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
scripts/ld-version.sh