diff options
Diffstat (limited to 'Modules/Compiler/XL-C.cmake')
| -rw-r--r-- | Modules/Compiler/XL-C.cmake | 44 |
1 files changed, 38 insertions, 6 deletions
diff --git a/Modules/Compiler/XL-C.cmake b/Modules/Compiler/XL-C.cmake index 09a55291e..5dc8bc17f 100644 --- a/Modules/Compiler/XL-C.cmake +++ b/Modules/Compiler/XL-C.cmake @@ -1,9 +1,41 @@ include(Compiler/XL) __compiler_xl(C) -set(CMAKE_C_FLAGS_RELEASE_INIT "${CMAKE_C_FLAGS_RELEASE_INIT} -DNDEBUG") -set(CMAKE_C_FLAGS_MINSIZEREL_INIT "${CMAKE_C_FLAGS_MINSIZEREL_INIT} -DNDEBUG") +string(APPEND CMAKE_C_FLAGS_RELEASE_INIT " -DNDEBUG") +string(APPEND CMAKE_C_FLAGS_MINSIZEREL_INIT " -DNDEBUG") -# -qthreaded = Ensures that all optimizations will be thread-safe -# -qalias=noansi = Turns off type-based aliasing completely (safer optimizer) -# -qhalt=e = Halt on error messages (rather than just severe errors) -set(CMAKE_C_FLAGS_INIT "-qthreaded -qalias=noansi -qhalt=e") +# -qthreaded = Ensures that all optimizations will be thread-safe +string(APPEND CMAKE_C_FLAGS_INIT " -qthreaded") + +# XL v13.1.1 for Linux ppc64 little-endian switched to using a clang based +# front end and accepts the -std= option while only reserving -qlanglevel= for +# compatibility. All other versions (previous versions on Linux ppc64 +# little-endian, all versions on Linux ppc64 big-endian, all versions on AIX +# and BGQ, etc) are derived from the UNIX compiler and only accept the +# -qlanglvl option. +if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10.1) + if (CMAKE_SYSTEM MATCHES "Linux.*ppc64le" AND + CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 13.1.1) + set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c89") + set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu89") + set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99") + set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99") + if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 13.1.2) + set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11") + set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11") + else () + set(CMAKE_C11_STANDARD_COMPILE_OPTION "-qlanglvl=extc1x") + set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-qlanglvl=extc1x") + endif () + else () + set(CMAKE_C90_STANDARD_COMPILE_OPTION "-qlanglvl=stdc89") + set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-qlanglvl=extc89") + set(CMAKE_C99_STANDARD_COMPILE_OPTION "-qlanglvl=stdc99") + set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-qlanglvl=extc99") + if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 12.1) + set(CMAKE_C11_STANDARD_COMPILE_OPTION "-qlanglvl=extc1x") + set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-qlanglvl=extc1x") + endif () + endif () +endif() + +__compiler_check_default_language_standard(C 10.1 90) |