diff options
Diffstat (limited to 'CompileFlags.cmake')
| -rw-r--r-- | CompileFlags.cmake | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/CompileFlags.cmake b/CompileFlags.cmake index 32e7005b5d..ec9b31bd91 100644 --- a/CompileFlags.cmake +++ b/CompileFlags.cmake @@ -82,3 +82,26 @@ endif () if (CMAKE_ANSI_CFLAGS) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${CMAKE_ANSI_CFLAGS}") endif () + +# Allow per-translation-unit parallel builds when using MSVC +if(CMAKE_GENERATOR MATCHES "Visual Studio" AND + (CMAKE_C_COMPILER_ID MATCHES "MSVC|Intel" OR + CMAKE_CXX_COMPILER_ID MATCHES "MSVC|Intel")) + + set(CMake_MSVC_PARALLEL ON CACHE STRING "\ +Enables /MP flag for parallel builds using MSVC. Specify an \ +integer value to control the number of threads used (Only \ +works on some older versions of Visual Studio). Setting to \ +ON lets the toolchain decide how many threads to use. Set to \ +OFF to disable /MP completely." ) + + if(CMake_MSVC_PARALLEL) + if(CMake_MSVC_PARALLEL GREATER 0) + string(APPEND CMAKE_C_FLAGS " /MP${CMake_MSVC_PARALLEL}") + string(APPEND CMAKE_CXX_FLAGS " /MP${CMake_MSVC_PARALLEL}") + else() + string(APPEND CMAKE_C_FLAGS " /MP") + string(APPEND CMAKE_CXX_FLAGS " /MP") + endif() + endif() +endif() |