diff options
Diffstat (limited to 'Modules/CMakeBackwardCompatibilityCXX.cmake')
| -rw-r--r-- | Modules/CMakeBackwardCompatibilityCXX.cmake | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Modules/CMakeBackwardCompatibilityCXX.cmake b/Modules/CMakeBackwardCompatibilityCXX.cmake index a8e4424..ccc2e33 100644 --- a/Modules/CMakeBackwardCompatibilityCXX.cmake +++ b/Modules/CMakeBackwardCompatibilityCXX.cmake @@ -1,4 +1,27 @@ # + +# check for some ANSI flags in the CXX compiler if it is not gnu +IF(NOT CMAKE_COMPILER_IS_GNUCXX) + INCLUDE(${CMAKE_ROOT}/Modules/TestCXXAcceptFlag.cmake) + SET(CMAKE_TRY_ANSI_CXX_FLAGS "") + IF(CMAKE_SYSTEM MATCHES "IRIX.*") + SET(CMAKE_TRY_ANSI_CXX_FLAGS "-LANG:std") + ENDIF(CMAKE_SYSTEM MATCHES "IRIX.*") + IF(CMAKE_SYSTEM MATCHES "OSF.*") + SET(CMAKE_TRY_ANSI_CXX_FLAGS "-std strict_ansi -nopure_cname") + ENDIF(CMAKE_SYSTEM MATCHES "OSF.*") + # if CMAKE_TRY_ANSI_CXX_FLAGS has something in it, see + # if the compiler accepts it + IF( CMAKE_TRY_ANSI_CXX_FLAGS MATCHES ".+") + CHECK_CXX_ACCEPTS_FLAG(${CMAKE_TRY_ANSI_CXX_FLAGS} CMAKE_CXX_ACCEPTS_FLAGS) + # if the compiler liked the flag then set CMAKE_ANSI_CXXFLAGS + # to the flag + IF(CMAKE_CXX_ACCEPTS_FLAGS) + SET(CMAKE_ANSI_CXXFLAGS ${CMAKE_TRY_ANSI_CXX_FLAGS}) + ENDIF(CMAKE_CXX_ACCEPTS_FLAGS) + ENDIF( CMAKE_TRY_ANSI_CXX_FLAGS MATCHES ".+") +ENDIF(NOT CMAKE_COMPILER_IS_GNUCXX) + INCLUDE(${CMAKE_ROOT}/Modules/TestForANSIStreamHeaders.cmake) INCLUDE(${CMAKE_ROOT}/Modules/CheckIncludeFileCXX.cmake) INCLUDE(${CMAKE_ROOT}/Modules/TestForSTDNamespace.cmake) |