The patch titled Subject: lib/build_OID_registry: avoid non-destructive substitution for Perl < 5.13.2 compat has been added to the -mm mm-hotfixes-unstable branch. Its filename is lib-build_oid_registry-avoid-non-destructive-substitution-for-perl-5132-compat.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/lib-build_oid_registry-avoid-non-destructive-substitution-for-perl-5132-compat.patch This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Paul Menzel <pmenzel@xxxxxxxxxxxxx> Subject: lib/build_OID_registry: avoid non-destructive substitution for Perl < 5.13.2 compat Date: Mon, 1 Jul 2024 17:58:01 +0200 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 `$0`, introduce a dedicated variable to support older Perl versions. Link: https://lkml.kernel.org/r/20240701155802.75152-1-pmenzel@xxxxxxxxxxxxx Fixes: 5ef6dc08cfde ("lib/build_OID_registry: don't mention the full path of the script in output") Link: https://lore.kernel.org/all/259f7a87-2692-480e-9073-1c1c35b52f67@xxxxxxxxxxxxx/ Signed-off-by: Paul Menzel <pmenzel@xxxxxxxxxxxxx> Suggested-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> Cc: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> Cc: Nicolas Schier <nicolas@xxxxxxxxx> Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> Cc: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/build_OID_registry | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/lib/build_OID_registry~lib-build_oid_registry-avoid-non-destructive-substitution-for-perl-5132-compat +++ a/lib/build_OID_registry @@ -38,7 +38,9 @@ close IN_FILE || die; # open C_FILE, ">$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"; # _ Patches currently in -mm which might be from pmenzel@xxxxxxxxxxxxx are lib-build_oid_registry-avoid-non-destructive-substitution-for-perl-5132-compat.patch