Masahiro Yamada 6f0fa58e45 kbuild: simplify silent build (-s) detection ... This allows to detect -s (--silent) option without checking GNU Make version. As commit e36aaea289 ("kbuild: Fix silent builds with make-4") pointed out, GNU Make 4.x changed the way/order it presents the command line options into MAKEFLAGS. In Make 3.8x, 's' is always the first in a group of short options. The group may be prefixed with '-' in some cases. In Make 4.x, 's' is always the last in a group of short options. As commit e6ac89fabd ("kbuild: Correctly deal with make options which contain an 's'") addressed, we also need to deal with long options that contain 's', like --warn-undefined-variables. Test cases: [1] command line input: make --silent -> MAKEFLAGS for Make 3.8x: s -> MAKEFLAGS for Make 4.x : s [2] command line input: make -srR -> MAKEFLAGS for Make 3.8x: sRr -> MAKEFLAGS for Make 4.x : rRs [3] command line input: make -s -rR --warn-undefined-variables -> MAKEFLAGS for Make 3.8x: --warn-undefined-variables -sRr -> MAKEFLAGS for Make 4.x : rRs --warn-undefined-variables My idea to cater to all the cases more easily is to filter out long options (--%), then search 's' with $(findstring ...). This way will be more future-proof even if future versions of Make put 's' in the middle of the group. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>		2017-06-06 09:01:12 +09:00
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Makefile.arch	tools build: Fix objtool build with ARCH=x86_64	2016-07-22 16:37:44 -03:00
Makefile.include	kbuild: simplify silent build (-s) detection	2017-06-06 09:01:12 +09:00
utilities.mak	tools: Move utilities.mak from perf to tools/scripts/	2016-03-18 13:57:20 -03:00