simdjson/singleheader/CMakeLists.txt

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CMake
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#
# Amalgamation
#
# We should check whether bash is available here and avoid failures on systems where
# bash is unavailable.
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if (NOT MSVC)
##
# Important! The script amalgamate.sh is not generally executable. It
# assumes that bash is at /bin/bash which may not be true.
###
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set(SINGLEHEADER_FILES simdjson.h simdjson.cpp amalgamate_demo.cpp README.md)
add_custom_command(
OUTPUT ${SINGLEHEADER_FILES}
COMMAND ${CMAKE_COMMAND} -E env
AMALGAMATE_SOURCE_PATH=${PROJECT_SOURCE_DIR}/src
AMALGAMATE_INPUT_PATH=${PROJECT_SOURCE_DIR}/include
AMALGAMATE_OUTPUT_PATH=${CMAKE_CURRENT_BINARY_DIR}
bash ${CMAKE_CURRENT_SOURCE_DIR}/amalgamate.sh
DEPENDS amalgamate.sh simdjson-source
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)
add_custom_target(amalgamate DEPENDS ${SINGLEHEADER_FILES})
add_executable(amalgamate_demo amalgamate_demo.cpp)
target_link_libraries(amalgamate_demo simdjson-include-source)
add_test(amalgamate_demo amalgamate_demo ${EXAMPLE_JSON} ${EXAMPLE_NDJSON})
endif()
#
# We also want to be able to build amalgamate_demo.cpp from the single header
# files alone.
#
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/simdjson.h ${CMAKE_CURRENT_BINARY_DIR}/single_header_from_repo/simdjson.h COPYONLY)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/simdjson.cpp ${CMAKE_CURRENT_BINARY_DIR}/single_header_from_repo/simdjson.cpp COPYONLY)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/amalgamate_demo.cpp ${CMAKE_CURRENT_BINARY_DIR}/single_header_from_repo/amalgamate_demo.cpp COPYONLY)
set(SINGLEHEADER_FILE ${CMAKE_CURRENT_BINARY_DIR}/single_header_from_repo/simdjson.h )
add_library(singleheaderlib ${CMAKE_CURRENT_BINARY_DIR}/single_header_from_repo/simdjson.cpp ${SINGLEHEADER_FILE})
add_executable(amalgamate_demo_from_repo ${CMAKE_CURRENT_BINARY_DIR}/single_header_from_repo/amalgamate_demo.cpp ${SINGLEHEADER_FILE})
add_dependencies(amalgamate_demo_from_repo singleheaderlib)
add_test(amalgamate_demo_from_repo amalgamate_demo_from_repo ${EXAMPLE_JSON} ${EXAMPLE_NDJSON})