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d66f5fa8e2
The rationale for this is in a comment at the top of the main CMakeLists.txt file. It was getting harder to maintain support for a version this old, and pretty much no current system has CMake <3. Good riddance.
29 lines
930 B
CMake
29 lines
930 B
CMake
# Filename: MakeComposite.cmake
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#
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# Description: When run, creates a single C++ file which includes multiple
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# other C++ files, to help facilitate unity builds.
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# Unity builds provide significantly increased compile speed.
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#
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# Usage:
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# This script is invoked via add_custom_target, like this:
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# cmake -P MakeComposite.cmake -D COMPOSITE_FILE="x_composite1.cxx" -D COMPOSITE_SOURCES="a.cxx b.cxx"
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#
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if(CMAKE_SCRIPT_MODE_FILE)
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if(NOT DEFINED COMPOSITE_FILE)
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message(FATAL_ERROR "COMPOSITE_FILE should be defined when running MakeComposite.cmake!")
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return()
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endif()
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file(WRITE "${COMPOSITE_FILE}" "/* Generated by CMake. DO NOT EDIT. */\n")
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separate_arguments(COMPOSITE_SOURCES)
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foreach(source ${COMPOSITE_SOURCES})
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file(APPEND "${COMPOSITE_FILE}" "#include \"${source}\"\n")
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endforeach()
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else()
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message(SEND_ERROR "MakeComposite.cmake should not be included but run in script mode.")
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endif()
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