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| author | Jukka Jylänki <jujjyl@gmail.com> | 2013-12-21 11:58:19 +0200 |
|---|---|---|
| committer | Jukka Jylänki <jujjyl@gmail.com> | 2013-12-30 12:58:12 +0200 |
| commit | 4bf76193c6f3f5d4c0a83ef2e715210b3d375175 (patch) | |
| tree | ba7be04aaa278c3d853e7b826830d770410b60e9 /cmake/Platform | |
| parent | d492872d610448b78accc12e138b7997a39bafb5 (diff) | |
Add support for generating vs-tool Visual Studio project files from CMake for building with Emscripten. This requires a custom build of CMake to work, since by default, CMake does not allow targeting other platforms than a few hardcoded ones ("win32", "x64", "itanium").
Diffstat (limited to 'cmake/Platform')
| -rw-r--r-- | cmake/Platform/Emscripten.cmake | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/cmake/Platform/Emscripten.cmake b/cmake/Platform/Emscripten.cmake index ef813eb8..1b0c66b4 100644 --- a/cmake/Platform/Emscripten.cmake +++ b/cmake/Platform/Emscripten.cmake @@ -205,3 +205,24 @@ endfunction() function(em_link_post_js target) em_add_tracked_link_flag(${target} "--post-js" ${ARGN}) endfunction() + +# Experimental support for targeting generation of Visual Studio project files (vs-tool) of Emscripten projects for Windows. +# To use this, pass the combination -G "Visual Studio 10" -DCMAKE_TOOLCHAIN_FILE=Emscripten.cmake +if ("${CMAKE_GENERATOR}" MATCHES "^Visual Studio.*") + # By default, CMake generates VS project files with a <GenerateManifest>true</GenerateManifest> directive. + # This causes VS to attempt to invoke rc.exe during the build, which will fail since app manifests are meaningless for Emscripten. + # To disable this, add the following linker flag. This flag will not go to emcc, since the Visual Studio CMake generator will swallow it. + set(EMSCRIPTEN_VS_LINKER_FLAGS "/MANIFEST:NO") + # CMake is hardcoded to write a ClCompile directive <ObjectFileName>$(IntDir)</ObjectFileName> in all VS project files it generates. + # This makes VS pass emcc a -o param that points to a directory instead of a file, which causes emcc autogenerate the output filename. + # CMake is hardcoded to assume all object files have the suffix .obj, so adjust the emcc-autogenerated default suffix name to match. + set(EMSCRIPTEN_VS_LINKER_FLAGS "${EMSCRIPTEN_VS_LINKER_FLAGS} --default-obj-ext .obj") + # Also hint CMake that it should not hardcode <ObjectFileName> generation. Requires a custom CMake build for this to work (ignored on others) + # See http://www.cmake.org/Bug/view.php?id=14673 and https://github.com/juj/CMake + set(CMAKE_VS_NO_DEFAULT_OBJECTFILENAME 1) + + # Apply and cache Emscripten Visual Studio IDE-specific linker flags. + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${EMSCRIPTEN_VS_LINKER_FLAGS}" CACHE STRING "") + set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${EMSCRIPTEN_VS_LINKER_FLAGS}" CACHE STRING "") + set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} ${EMSCRIPTEN_VS_LINKER_FLAGS}" CACHE STRING "") +endif() |