diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 69 |
1 files changed, 45 insertions, 24 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index abd81fd2..36efb741 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -113,37 +113,58 @@ IF(HAVE_STD_C99) SET(CMAKE_C_FLAGS "-std=c99 ${CMAKE_C_FLAGS}") ENDIF() -# TODO: Once we truly require C99, these restrict and inline checks should go -# away. Currently they're needed to maintain MSVC compatibility. -CHECK_C_SOURCE_COMPILES("int *restrict foo; - int main() {return 0;}" HAVE_RESTRICT) -IF(NOT HAVE_RESTRICT) - # Slightly convoluted way to do this, because MSVC may barf if restrict is - # defined to __restrict. - CHECK_C_SOURCE_COMPILES("#define restrict __restrict - #include <stdlib.h> - int *restrict foo; - int main() {return 0;}" HAVE___RESTRICT) - IF(HAVE___RESTRICT) - ADD_DEFINITIONS(-Drestrict=__restrict) - ELSE() - ADD_DEFINITIONS("-Drestrict=") +# MSVC may need workarounds for C99 restrict and inline +IF(MSVC) + # TODO: Once we truly require C99, these restrict and inline checks should go + # away. + CHECK_C_SOURCE_COMPILES("int *restrict foo; + int main() {return 0;}" HAVE_RESTRICT) + IF(NOT HAVE_RESTRICT) + # Slightly convoluted way to do this, because MSVC may barf if restrict is + # defined to __restrict. + CHECK_C_SOURCE_COMPILES("#define restrict __restrict + #include <stdlib.h> + int *restrict foo; + int main() {return 0;}" HAVE___RESTRICT) + IF(HAVE___RESTRICT) + ADD_DEFINITIONS(-Drestrict=__restrict) + SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Drestrict=__restrict") + ELSE() + ADD_DEFINITIONS("-Drestrict=") + SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Drestrict=") + ENDIF() + ENDIF() + + CHECK_C_SOURCE_COMPILES("inline void foo(void) { } + int main() {return 0;}" HAVE_INLINE) + IF(NOT HAVE_INLINE) + CHECK_C_SOURCE_COMPILES("__inline void foo(void) { } + int main() {return 0;}" HAVE___INLINE) + IF(NOT HAVE___INLINE) + MESSAGE(FATAL_ERROR "No inline keyword found, please report!") + ENDIF() + + ADD_DEFINITIONS(-Dinline=__inline) + SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Dinline=__inline") ENDIF() ENDIF() -CHECK_C_SOURCE_COMPILES("inline void foo(void) { } - int main() {return 0;}" HAVE_INLINE) -IF(NOT HAVE_INLINE) - CHECK_C_SOURCE_COMPILES("__inline void foo(void) { } - int main() {return 0;}" HAVE___INLINE) - IF(NOT HAVE___INLINE) - MESSAGE(FATAL_ERROR "No inline keyword found, please report!") +# Make sure we have C99-style inline semantics with GCC (4.3 or newer). +IF(CMAKE_COMPILER_IS_GNUCC) + SET(OLD_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}") + # Force no inlining for the next test. + SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS} -fno-inline") + + CHECK_C_SOURCE_COMPILES("extern inline int foo() { return 0; } + int main() {return foo();}" INLINE_IS_C99) + IF(NOT INLINE_IS_C99) + MESSAGE(FATAL_ERROR "Your compiler does not seem to have C99 inline semantics! + Please update your compiler for better C99 compliance.") ENDIF() - ADD_DEFINITIONS(-Dinline=__inline) + SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}") ENDIF() - # Add definitions, compiler switches, etc. INCLUDE_DIRECTORIES("${OpenAL_SOURCE_DIR}/include" "${OpenAL_BINARY_DIR}") IF(CMAKE_VERSION VERSION_LESS "2.8.8") |