Jiri reported that 'make .o' stopped working: > [jolsa@krava perf]$ make -f Makefile perf.o > cc -c -o perf.o perf.c > In file included from builtin.h:4:0, > from perf.c:9: > util/util.h:74:24: fatal error: lk/debugfs.h: No such file or directory > compilation terminated. > make: *** [perf.o] Error 1
This is due to GNU make having built-in rules for popular targets such as *.o. Clear them out so that all targets as passed through to Makefile.perf. Reported-by: Jiri Olsa <jo...@redhat.com> Cc: Arnaldo Carvalho de Melo <a...@redhat.com> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Namhyung Kim <namhy...@kernel.org> Cc: David Ahern <dsah...@gmail.com> Link: http://lkml.kernel.org/n/tip-5wkuvmlaaxtfgepkcvrij...@git.kernel.org Signed-off-by: Ingo Molnar <mi...@kernel.org> --- tools/perf/Makefile | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 3b925ad..6f6f13a 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -1,3 +1,10 @@ + +# +# Clear out the built-in rules GNU make defines by default (such as .o targets), +# so that we pass through all targets to Makefile.perf: +# +.SUFFIXES: + # # Do a parallel build with multiple jobs, based on the number of CPUs online # in this system: 'make -j8' on a 8-CPU system, etc. -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
