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lib/build_OID_registry: avoid non-destructive substitution for Perl < 5.13.2 compat

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BugLink: https://bugs.launchpad.net/bugs/2097393

[ Upstream commit 2fe29fe945637b9834c5569fbb1c9d4f881d8263 ]

On a system with Perl 5.12.1, commit 5ef6dc08cfde
("lib/build_OID_registry: don't mention the full path of the script in
output") causes the build to fail with the error below.

     Bareword found where operator expected at ./lib/build_OID_registry line 41, near "s#^\Q$abs_srctree/\E##r"
     syntax error at ./lib/build_OID_registry line 41, near "s#^\Q$abs_srctree/\E##r"
     Execution of ./lib/build_OID_registry aborted due to compilation errors.
     make[3]: *** [lib/Makefile:352: lib/oid_registry_data.c] Error 255

Ahmad Fatoum analyzed that non-destructive substitution is only supported since
Perl 5.13.2. Instead of dropping `r` and having the side effect of modifying
`$0`, introduce a dedicated variable to support older Perl versions.

Link: https://lkml.kernel.org/r/20240702223512.8329-2-pmenzel@molgen.mpg.de
Link: https://lkml.kernel.org/r/20240701155802.75152-1-pmenzel@molgen.mpg.de
Fixes: 5ef6dc08cfde ("lib/build_OID_registry: don't mention the full path of the script in output")
Link: https://lore.kernel.org/all/259f7a87-2692-480e-9073-1c1c35b52f67@molgen.mpg.de/
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Suggested-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
This commit is contained in:
Paul Menzel
2024-07-01 17:58:01 +02:00
committed by Mehmet Basaran
parent 9ffd713ac0
commit 3f04c5c82b
1 changed files with 3 additions and 1 deletions
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lib/build_OID_registry
+3 -1
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@@ -38,7 +38,9 @@ close IN_FILE || die;
#
open C_FILE, ">$ARGV[1]" or die;
print C_FILE "/*\n";
print C_FILE " * Automatically generated by ", $0 =~ s#^\Q$abs_srctree/\E##r, ". Do not edit\n";
my $scriptname = $0;
$scriptname =~ s#^\Q$abs_srctree/\E##;
print C_FILE " * Automatically generated by ", $scriptname, ". Do not edit\n";
print C_FILE " */\n";
#