Removing PERF-CFLAGS file, because the build framework
stores full build command line for each object and
triggers rebuilt if necessary.

Signed-off-by: Jiri Olsa <jo...@kernel.org>
Cc: Alexis Berlemont <alexis.berlem...@gmail.com>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Borislav Petkov <b...@alien8.de>
Cc: Corey Ashford <cjash...@linux.vnet.ibm.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Stephane Eranian <eran...@google.com>
---
 tools/perf/Makefile.perf | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index d02c1f2622ca..97307a26fe10 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -365,7 +365,7 @@ LIBTRACEEVENT_FLAGS  = $(QUIET_SUBDIR1) O=$(OUTPUT)
 LIBTRACEEVENT_FLAGS += CFLAGS="-g -Wall $(EXTRA_CFLAGS)"
 LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ)
 
-$(LIBTRACEEVENT): $(TE_SOURCES) $(OUTPUT)PERF-CFLAGS
+$(LIBTRACEEVENT): $(TE_SOURCES)
        $(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) 
libtraceevent.a plugins
 
 $(LIBTRACEEVENT)-clean:
@@ -444,17 +444,6 @@ cscope:
        $(QUIET_GEN)$(RM) cscope*; \
        $(FIND) $(TAG_FOLDERS) -name '*.[hcS]' -print | xargs cscope -b 
$(TAG_FILES)
 
-### Detect prefix changes
-TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):\
-             
$(bindir_SQ):$(perfexecdir_SQ):$(template_dir_SQ):$(prefix_SQ):$(plugindir_SQ)
-
-$(OUTPUT)PERF-CFLAGS: .FORCE-PERF-CFLAGS
-       @FLAGS='$(TRACK_CFLAGS)'; \
-           if test x"$$FLAGS" != x"`cat $(OUTPUT)PERF-CFLAGS 2>/dev/null`" ; 
then \
-               echo 1>&2 "  FLAGS:   * new build flags or prefix"; \
-               echo "$$FLAGS" >$(OUTPUT)PERF-CFLAGS; \
-            fi
-
 ### Testing rules
 
 # GNU make supports exporting all variables by "export" without parameters.
@@ -544,7 +533,7 @@ clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean 
config-clean
        @find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' 
-delete
        @$(RM) .config-detected
        $(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf 
perf-read-vdso32 perf-read-vdsox32
-       $(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc 
*/*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE 
$(OUTPUT)PERF-CFLAGS $(OUTPUT)PERF-FEATURES $(OUTPUT)util/*-bison* 
$(OUTPUT)util/*-flex*
+       $(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc 
*/*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE 
$(OUTPUT)PERF-FEATURES $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
        $(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
        $(python-clean)
 
@@ -562,5 +551,5 @@ FORCE:
 
 .PHONY: all install clean config-clean strip install-gtk
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
-.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS FORCE single_dep
+.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope FORCE single_dep
 
-- 
1.9.3

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