On Tue, Dec 15, 2009 at 4:13 AM, Johan Knutzen <knutzen_joh...@yahoo.se> wrote:
>
> Hi!
>
> What is the status of scripts enabling precompiled headers for gcc/visual
> studio? I've tried out PCHSupport_26 from
> http://www.cmake.org/Bug/view.php?id=1260 but I couldn't get it to work. Does
> anyone have any up to date script that works with 2.8?
>
I have not bothered in linux since I can use ccache to speed up
builds. In windows I use the following macro:
#########################################################################################
macro( SM_PCH_SUPPORT ProjectName )
if (MSVC)
if (USE_MSVC_PCH)
set_source_files_properties(${ProjectName}PCH.cxx
PROPERTIES
COMPILE_FLAGS "/Yc${ProjectName}PCH.h"
)
foreach( src_file ${${ProjectName}_SRCS} )
set_source_files_properties(
${src_file}
PROPERTIES
COMPILE_FLAGS "/Yu${ProjectName}PCH.h"
)
endforeach( src_file ${${ProjectName}_SRCS} )
list(APPEND ${ProjectName}_SRCS ${ProjectName}PCH.cxx)
list(APPEND ${ProjectName}_EXT_HDRS ${ProjectName}PCH.h)
endif(USE_MSVC_PCH)
endif (MSVC)
endmacro (SM_PCH_SUPPORT)
#########################################################################################
And this requires me to have my source variable named ${ProjectName}_SRCS
And my header variable to be named ${ProjectName}_EXT_HDRS
and the following files to exist in the same folder as the CMakeLists.txt
${ProjectName}PCH.cxx ${ProjectName}PCH.h
I generally put this macro in the main project before my first
add_subdirectory so that all subprojects can use the macro as well.
Then to activate this in a project. I place the macro call after I
define the list variables.
SET( smDataManagement_SRCS
./src/smData.cxx
./src/smDataOperation.cxx
./src/smCounterBalanceOperation.cxx
)
SET( smDataManagement_EXT_HDRS
./Include/smData.h
./Include/smDataOperation.h
./Include/smCounterBalanceOperation.h
)
SET( smDataManagement_MOC_HDRS
)
# some .ui files
SET( smDataManagement_UIS
)
# and finally an resource file
SET( smDataManagement_RCS
)
SET( smDataManagement_INT_HDRS
)
#Add precompiled header support
SM_PCH_SUPPORT(smDataManagement)
This works in cmake-2.6 and above.
John
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