diff options
Diffstat (limited to 'templates/Makefile.template')
| -rw-r--r-- | templates/Makefile.template | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/templates/Makefile.template b/templates/Makefile.template index a4fcf66782..57a0815193 100644 --- a/templates/Makefile.template +++ b/templates/Makefile.template @@ -183,6 +183,12 @@ 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_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) + W_NO_SHIFT_NEGATIVE_VALUE=-Wno-shift-negative-value + endif + # The HOST compiler settings are used to compile the protoc plugins. # In most cases, you won't have to change anything, but if you are # cross-compiling, you can override these variables from GNU make's @@ -1437,7 +1443,7 @@ $(LIB${lib.name.upper()}_OBJS): CXXFLAGS := -Ithird_party/boringssl/include $(CXXFLAGS) -fvisibility=hidden $(LIB${lib.name.upper()}_OBJS): CPPFLAGS += -DOPENSSL_NO_ASM -D_GNU_SOURCE % elif lib.zlib: - $(LIB${lib.name.upper()}_OBJS): CFLAGS := $(CFLAGS) -Wno-sign-conversion -Wno-conversion -Wno-unused-value -Wno-implicit-function-declaration -fvisibility=hidden + $(LIB${lib.name.upper()}_OBJS): CFLAGS := $(CFLAGS) -Wno-sign-conversion -Wno-conversion -Wno-unused-value -Wno-implicit-function-declaration $(W_NO_SHIFT_NEGATIVE_VALUE) -fvisibility=hidden % else: % endif |