diff options
| author | Chris Robinson <[email protected]> | 2013-10-03 05:45:12 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2013-10-03 05:45:12 -0700 |
| commit | 01a5946a2e371485e4e0774e7dd543ad3a1f0675 (patch) | |
| tree | 04ef80e1b13c9bbe76c97c1cee108d8a9a1f7ee6 /CMakeLists.txt | |
| parent | 2e605590a264b96f08c36f09b1d969cc9808d5ac (diff) | |
Compile using -std=c99 when available
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index f39c910f..4b9d3ba4 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -100,10 +100,17 @@ CHECK_TYPE_SIZE("long" SIZEOF_LONG) CHECK_TYPE_SIZE("long long" SIZEOF_LONG_LONG) +CHECK_C_COMPILER_FLAG(-std=c99 HAVE_STD_C99) +IF(HAVE_STD_C99) + SET(CMAKE_C_FLAGS "-std=c99 ${CMAKE_C_FLAGS}") +ENDIF() + +# TODO: Once we truly require C99, these restrict and inline checks should go +# away. Currently they're needed to maintain MSVC compatibility. CHECK_C_SOURCE_COMPILES("int *restrict foo; int main() {return 0;}" HAVE_RESTRICT) IF(NOT HAVE_RESTRICT) - # Slightly convoluted way to do this, because MSVC may barf is restrict is + # Slightly convoluted way to do this, because MSVC may barf if restrict is # defined to __restrict. CHECK_C_SOURCE_COMPILES("#define restrict __restrict #include <stdlib.h> |