From 9961aa665b70e47d6c80141c4a2482266010f246 Mon Sep 17 00:00:00 2001 From: David Carrillo-Cisneros Date: Tue, 11 Apr 2017 23:49:14 -0700 Subject: [PATCH] tools build: Fix feature detection redefinion of build flags This change is a follow up of https://lkml.org/lkml/2017/2/2/16 The patch above avoided redefining CC, CXX and PKG_CONFIG in feature detection. The patch was not merged due to a unsolved concern with the -MD flag. Later, commit c8c188679ccf ("tools build: Use the same CC for feature detection and actual build") did the change for CC and CXX but not PKG_CONFIG. This patch makes PKG_CONFIG consistent with CC and CXX and moves the -MD to CFLAGS, as suggested by Jiri in the thread above. Signed-off-by: David Carrillo-Cisneros Cc: Alexander Shishkin Cc: Andi Kleen Cc: He Kuang Cc: Jiri Olsa Cc: Masami Hiramatsu Cc: Paul Turner Cc: Peter Zijlstra Cc: Simon Que Cc: Stephane Eranian Cc: Wang Nan Link: http://lkml.kernel.org/r/20170412064919.92449-3-davidcc@google.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/build/feature/Makefile | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index 523e587fe05f..e35e4e5ad192 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -53,17 +53,17 @@ FILES= \ FILES := $(addprefix $(OUTPUT),$(FILES)) -CC ?= $(CROSS_COMPILE)gcc -MD -CXX ?= $(CROSS_COMPILE)g++ -MD -PKG_CONFIG := $(CROSS_COMPILE)pkg-config +CC ?= $(CROSS_COMPILE)gcc +CXX ?= $(CROSS_COMPILE)g++ +PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config LLVM_CONFIG ?= llvm-config all: $(FILES) -__BUILD = $(CC) $(CFLAGS) -Wall -Werror -o $@ $(patsubst %.bin,%.c,$(@F)) $(LDFLAGS) +__BUILD = $(CC) $(CFLAGS) -MD -Wall -Werror -o $@ $(patsubst %.bin,%.c,$(@F)) $(LDFLAGS) BUILD = $(__BUILD) > $(@:.bin=.make.output) 2>&1 -__BUILDXX = $(CXX) $(CXXFLAGS) -Wall -Werror -o $@ $(patsubst %.bin,%.cpp,$(@F)) $(LDFLAGS) +__BUILDXX = $(CXX) $(CXXFLAGS) -MD -Wall -Werror -o $@ $(patsubst %.bin,%.cpp,$(@F)) $(LDFLAGS) BUILDXX = $(__BUILDXX) > $(@:.bin=.make.output) 2>&1 ###############################