cmcldeps failure with Ninja generator and sccache
With ccache, a CMake project can simply add:
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "ccache")However ccache does not support MSVC. The only currently maintained compiler cache for MSVC is sccache. Using sccache, this fails if the project compiles an RC file with MSVC:
[715/841] Building RC object CMakeFiles\mixxx.dir\src\mixxx.rc.res
FAILED: CMakeFiles/mixxx.dir/src/mixxx.rc.res
sccache "C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/bin/cmcldeps.exe" RC D:\a\mixxx\mixxx\src\mixxx.rc CMakeFiles\mixxx.dir\src\mixxx.rc.res.d CMakeFiles\mixxx.dir\src\mixxx.rc.res "Note: including file: " "C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.28.29333/bin/Hostx64/x64/cl.exe" C:\PROGRA~2\WI3CF2~1\10\bin\x64\rc.exe -DAMD64 -DCHROMAPRINT_NODLL -DFLAC__NO_DLL -DMIXXX_BUILD_RELEASE -DMIXXX_DEBUG_ASSERTIONS_ENABLED -DMIXXX_DEBUG_ASSERTIONS_FATAL -DNDEBUG -DNOMINMAX -DQT_ACCESSIBILITY_SUPPORT_LIB -DQT_CONCURRENT_LIB -DQT_CORE_LIB -DQT_EVENTDISPATCHER_SUPPORT_LIB -DQT_FONTDATABASE_SUPPORT_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_NODLL -DQT_NO_DEBUG -DQT_OPENGL_LIB -DQT_SCRIPTTOOLS_LIB -DQT_SCRIPT_LIB -DQT_SQL_LIB -DQT_SVG_LIB -DQT_TABLET_SUPPORT -DQT_TESTCASE_BUILDDIR=\"D:/a/mixxx/mixxx/build\" -DQT_TESTLIB_LIB -DQT_THEME_SUPPORT_LIB -DQT_USE_QSTRINGBUILDER -DQT_WIDGETS_LIB -DQT_WINDOWSUIAUTOMATION_SUPPORT_LIB -DQT_XML_LIB -DSFC_SUPPORTS_SET_COMPRESSION_LEVEL -DTAGLIB_STATIC -DUNICODE -DWIN32 -DWINVER=0x0601 -D_ATL_MIN_CRT -D_CRT_SECURE_NO_WARNINGS -D_SILENCE_CXX17_ITERATOR_BASE_CLASS_DEPRECATION_WARNING -D_USE_MATH_DEFINES -D_WIN32_WINNT=0x0601 -D__BATTERY__ -D__BROADCAST__ -D__HID__ -D__HSS1394__ -D__MAD__ -D__MEDIAFOUNDATION__ -D__OPUS__ -D__QTKEYCHAIN__ -D__SNDFILE__ -D__SQLITE3__ -D__SSE2__ -D__SSE__ -D__VINYLCONTROL__ -I D:\a\mixxx\mixxx -I D:\a\mixxx\mixxx\src -I D:\a\mixxx\mixxx\build\src -I D:\a\mixxx\mixxx\lib\fidlib -I D:\a\mixxx\mixxx\lib\googletest-1.10.x\googletest\include -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\include -I D:\a\mixxx\mixxx\lib\portaudio -I D:\a\mixxx\mixxx\lib\rigtorp\SPSCQueue\include -I D:\a\mixxx\mixxx\lib\qtscript-bytearray -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\include\opus -I D:\a\mixxx\mixxx\lib\libebur128\ebur128 -I D:\a\mixxx\mixxx\lib\kaitai -I D:\a\mixxx\mixxx\lib\mp3guessenc-0.27.4 -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtConcurrent -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtCore -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\mkspecs\win32-msvc -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtGui -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtANGLE -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtEventDispatcherSupport -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtFontDatabaseSupport -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtThemeSupport -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtAccessibilitySupport -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtWindowsUIAutomationSupport -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtNetwork -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtOpenGL -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtWidgets -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtScript -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtScriptTools -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtSql -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtSvg -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtTest -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\include\QtXml -I D:\a\mixxx\mixxx\lib\qm-dsp -I D:\a\mixxx\mixxx\lib\qm-dsp\include -I D:\a\mixxx\mixxx\lib -I C:\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\include\taglib -I D:\a\mixxx\mixxx\lib\hidapi\hidapi -I D:\a\mixxx\mixxx\lib\xwax -DWIN32 /fo CMakeFiles\mixxx.dir\src\mixxx.rc.res D:\a\mixxx\mixxx\src\mixxx.rc
sccache: error: failed to execute compile
sccache: caused by: Compiler not supported: "ninja: FATAL: Couldn\'t parse arguments.\r\n\r\nusage:\r\n cmcldeps <language C, CXX or RC> <source file path> <output path for *.d file> <output path for *.obj file> <prefix of /showIncludes> <path to cl.exe> <path to tool (cl or rc)> <rest of command ...>\r\n\r\n"
[716/841] Building CXX object CMakeFiles\mixxx.dir\C_\buildenv\2.3-j00019-x64-release-fastbuild-static-55e94982-minimal\Qt-5.14.2\lib\cmake\Qt5Gui\Qt5Gui_QICOPlugin_Import.cpp.obj
ninja: build stopped: subcommand failed.
Error: Process completed with exit code 1.A workaround is to split most of the program into a library target with CMake and define a separate executable target that includes the RC file so RULE_LAUNCH_COMPILE can be set only for the library target but not the executable.