diff options
| author |  Craig Tiller <ctiller@google.com> | 2016-02-23 16:50:24 -0800 |
|---|---|---|
| committer | Craig Tiller <ctiller@google.com> | 2016-02-23 17:06:04 -0800 |
| commit | 804b85534be9ecf9f64da56b9ca46ca5f2eb6211 (patch) | |
| tree | 849c41ca4349f9744a9b4ef00de6cf0518e5639f /Makefile | |
| parent | b79c1e112e576cfc9cdbeb95320ba7bb71848887 (diff) | |
Test for a working -Wshadow
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -275,6 +275,12 @@ endif CXX11_CHECK_CMD = $(CXX) -std=c++11 -o $(TMPOUT) -c test/build/c++11.cc HAS_CXX11 = $(shell $(CXX11_CHECK_CMD) 2> /dev/null && echo true || echo false) +CHECK_SHADOW_WORKS_CMD = $(CC) -std=c99 -Werror -Wshadow -o $(TMPOUT) -c test/build/shadow.c +HAS_WORKING_SHADOW = $(shell $(CHECK_SHADOW_WORKS_CMD) 2> /dev/null && echo true || echo false) +ifeq ($(HAS_WORKING_SHADOW),true) +W_SHADOW=-Wshadow +endif + CHECK_NO_SHIFT_NEGATIVE_VALUE_CMD = $(CC) -std=c99 -Werror -Wno-shift-negative-value -o $(TMPOUT) -c test/build/empty.c HAS_NO_SHIFT_NEGATIVE_VALUE = $(shell $(CHECK_NO_SHIFT_NEGATIVE_VALUE_CMD) 2> /dev/null && echo true || echo false) ifeq ($(HAS_NO_SHIFT_NEGATIVE_VALUE),true) @@ -295,7 +301,7 @@ ifdef EXTRA_DEFINES DEFINES += $(EXTRA_DEFINES) endif -CFLAGS += -std=c99 -Wsign-conversion -Wconversion -Wshadow +CFLAGS += -std=c99 -Wsign-conversion -Wconversion $(W_SHADOW) ifeq ($(HAS_CXX11),true) CXXFLAGS += -std=c++11 else |