IF(MSVC_C_ARCHITECTURE_ID AND CMAKE_GENERATOR MATCHES "Ninja" AND CMAKE_C_COMPILER) FIND_PROGRAM(CMAKE_CMCLDEPS_EXECUTABLE NAMES cmcldeps.exe) SET(showdir ${CMAKE_BINARY_DIR}/CMakeFiles/ShowIncludes) FILE(WRITE ${showdir}/foo.h "\n") FILE(WRITE ${showdir}/main.c "#include \"foo.h\" \nint main(){}\n") EXECUTE_PROCESS(COMMAND ${CMAKE_C_COMPILER} /nologo /showIncludes ${showdir}/main.c WORKING_DIRECTORY ${showdir} OUTPUT_VARIABLE showOut) STRING(REPLACE main.c "" showOut1 ${showOut}) STRING(REPLACE "/" "\\" header1 ${showdir}/foo.h) STRING(TOLOWER ${header1} header2) STRING(REPLACE ${header2} "" showOut2 ${showOut1}) STRING(REPLACE "\n" "" showOut3 ${showOut2}) SET(CMAKE_CL_SHOWINCLUDE_PREFIX ${showOut3} CACHE STRING "cl.exe's /showInclides prefix" FORCE) ENDIF()