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On a system with Perl 5.12.1, commit5ef6dc08cf("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:5ef6dc08cf("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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.