From f983d955f9cd01bc07f8c3dddb0565e66a0d2990 Mon Sep 17 00:00:00 2001 From: Yuri Kunde Schlesner Date: Fri, 9 Jan 2015 12:42:35 -0200 Subject: CMake: Enable VS parallel builds for a good reduction in compile times This enables the /MP compiler flag, which parallelizes builds of by distributing compilation of individual object files across workes processes, instead of being limited to per-project parallelism. Reduces the time for a full compile from 72 s to 45 s on my machine. --- CMakeLists.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'CMakeLists.txt') diff --git a/CMakeLists.txt b/CMakeLists.txt index 884520ce..2cba5e8a 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -17,6 +17,7 @@ else() # As far as I can tell, there's no way to override the CMake defaults while leaving user # changes intact, so we'll just clobber everything and say sorry. message(STATUS "Cache compiler flags ignored, please edit CMakeFiles.txt to change the flags.") + # /MP - Multi-threaded compilation # /MD - Multi-threaded runtime # /Ox - Full optimization # /Oi - Use intrinsic functions @@ -24,7 +25,7 @@ else() # /GR- - Disable RTTI # /GS- - No stack buffer overflow checks # /EHsc - C++-only exception handling semantics - set(optimization_flags "/MD /Ox /Oi /Oy- /DNDEBUG /GR- /GS- /EHsc") + set(optimization_flags "/MP /MD /Ox /Oi /Oy- /DNDEBUG /GR- /GS- /EHsc") # /Zi - Output debugging information # /Zo - enahnced debug info for optimized builds set(CMAKE_C_FLAGS_RELEASE "${optimization_flags} /Zi" CACHE STRING "" FORCE) -- cgit v1.2.3