[PATCH 2/3] perf build: Apply EXTRA_CXXFLAGS to C++ builds

[Trevor Allison]

C++ sources did not receive EXTRA_CXXFLAGS or EXTRA_CFLAGS, unlike C
sources. Initialize CXXFLAGS from both so C++ objects such as
demangle-cxx.o get the same builder flags as the rest of perf.

Signed-off-by: Trevor Allison <tallison@xxxxxxxxxx>
---
 tools/perf/Makefile.config | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 0ba307e78fe1..052a6cc7942f 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -17,6 +17,7 @@ detected     = $(shell echo "$(1)=y"       >> $(OUTPUT).config-detected)
 detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
 
 CFLAGS := $(EXTRA_CFLAGS) $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
+CXXFLAGS := $(EXTRA_CXXFLAGS) $(EXTRA_CFLAGS)
 HOSTCFLAGS := $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
 
 # This is required because the kernel is built with this and some of the code
-- 
2.50.1 (Apple Git-155)