diff options
Diffstat (limited to 'Modules/Compiler/XL-C.cmake')
| -rw-r--r-- | Modules/Compiler/XL-C.cmake | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/Modules/Compiler/XL-C.cmake b/Modules/Compiler/XL-C.cmake index f14373d..ac84da2 100644 --- a/Modules/Compiler/XL-C.cmake +++ b/Modules/Compiler/XL-C.cmake @@ -3,5 +3,50 @@ __compiler_xl(C) 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 +# -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_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 () + if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10.1) + 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() + +if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10.1) + if (NOT CMAKE_C_COMPILER_FORCED) + if (NOT CMAKE_C_STANDARD_COMPUTED_DEFAULT) + message(FATAL_ERROR "CMAKE_C_STANDARD_COMPUTED_DEFAULT should be set for ${CMAKE_C_COMPILER_ID} (${CMAKE_C_COMPILER}) version ${CMAKE_C_COMPILER_VERSION}") + else () + set(CMAKE_C_STANDARD_DEFAULT ${CMAKE_C_STANDARD_COMPUTED_DEFAULT}) + endif () + elseif (NOT CMAKE_C_STANDARD_COMPUTED_DEFAULT) + # Compiler id was forced so just guess the default standard level. + set(CMAKE_C_STANDARD_DEFAULT 90) + endif () +endif () |