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MSVC: Add /FS flag for cl >= 18 to allow parallel compilation (#14492) 

In generators such as Ninja that can run multiple "cl" processes that
refer to the same compiler .pdb file (/Fd) at the same time, MSVC from
Visual Studio 2013 complains:

 fatal error C1041: cannot open program database '.../vc120.pdb';
 if multiple CL.EXE write to the same .PDB file, please use /FS

According to "cl /?":

 /FS force to use MSPDBSRV.EXE

Add the flag to compilation lines for this compiler version just after the
/Fd option.
This commit is contained in:
Brad King 2013-10-18 10:22:57 -04:00
parent c515dc5748
commit 216afc8a81
3 changed files with 7 additions and 1 deletions
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3
Modules/Platform/Windows-MSVC-C.cmake
View File

@ -1,2 +1,5 @@
include(Platform/Windows-MSVC)
if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 18.0)
set(_FS_C " /FS")
endif()
__windows_compiler_msvc(C)

3
Modules/Platform/Windows-MSVC-CXX.cmake
View File

@ -1,3 +1,6 @@
include(Platform/Windows-MSVC)
set(_COMPILE_CXX " /TP")
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0)
set(_FS_CXX " /FS")
endif()
__windows_compiler_msvc(CXX)

2
Modules/Platform/Windows-MSVC.cmake
View File

@ -232,7 +232,7 @@ macro(__windows_compiler_msvc lang)
set(CMAKE_${lang}_CREATE_STATIC_LIBRARY "<CMAKE_LINKER> /lib ${CMAKE_CL_NOLOGO} <LINK_FLAGS> /out:<TARGET> <OBJECTS> ")
set(CMAKE_${lang}_COMPILE_OBJECT
"<CMAKE_${lang}_COMPILER> ${CMAKE_START_TEMP_FILE} ${CMAKE_CL_NOLOGO}${_COMPILE_${lang}} <FLAGS> <DEFINES> /Fo<OBJECT> /Fd<OBJECT_DIR>/ -c <SOURCE>${CMAKE_END_TEMP_FILE}")
"<CMAKE_${lang}_COMPILER> ${CMAKE_START_TEMP_FILE} ${CMAKE_CL_NOLOGO}${_COMPILE_${lang}} <FLAGS> <DEFINES> /Fo<OBJECT> /Fd<OBJECT_DIR>/${_FS_${lang}} -c <SOURCE>${CMAKE_END_TEMP_FILE}")
set(CMAKE_${lang}_CREATE_PREPROCESSED_SOURCE
"<CMAKE_${lang}_COMPILER> > <PREPROCESSED_SOURCE> ${CMAKE_START_TEMP_FILE} ${CMAKE_CL_NOLOGO}${_COMPILE_${lang}} <FLAGS> <DEFINES> -E <SOURCE>${CMAKE_END_TEMP_FILE}")
set(CMAKE_${lang}_CREATE_ASSEMBLY_SOURCE