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cmake: disable GCC warnings about universal zero initializer {0}

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This commit is contained in:
Hugues Delorme 2015-12-04 12:48:00 +01:00
parent 6ca001201b
commit 99e1d9aefa
2 changed files with 16 additions and 3 deletions
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17
CMakeLists.txt
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@ -211,8 +211,21 @@ if(CMAKE_C_COMPILER_IS_GCC_COMPATIBLE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wlogical-op-parentheses")
endif()
# TODO: disable these warnings with GCC < 4.9
#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-missing-braces -Wno-missing-field-initializers")
# Disable warnings -Wno-missing-braces -Wno-missing-field-initializers
# in case GCC wrongly warns about universal zero initializer {0}
# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
set(CMAKE_REQUIRED_FLAGS "${CMAKE_C_FLAGS} -Werror=missing-braces")
check_c_source_compiles(
"struct data { char array[128]; };
int main() {
struct data d = {0};
return d.array[0];
}"
GMIO_GCC_DOESNT_WARN_UNIVERSAL_0_INITIALIZER)
set(CMAKE_REQUIRED_FLAGS "${CMAKE_C_FLAGS}") # Restore CMAKE_REQUIRED_FLAGS
if (NOT GMIO_GCC_DOESNT_WARN_UNIVERSAL_0_INITIALIZER)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-missing-braces -Wno-missing-field-initializers")
endif()
# Force PIC for GCC
# See https://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1&chap=3

2
tests/test_core_platform.c
View File

@ -66,7 +66,7 @@ const char* test_platform__global_h()
const char* test_platform__compiler()
{
/* Check that initialization with {0} works as expected
/* Check that universal zero initializer {0} works as expected
*
* See http://www.ex-parrot.com/~chris/random/initialise.html
*