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[cmake] Generate CMakeArgs.txt file to store CMake src, build dir and invocation arguments #815

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Mar 10, 2024
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[cmake] Generate CMakeArgs.txt file to store CMake src, build dir and invocation arguments #815

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14 changes: 14 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,20 @@ set(CMAKE_CXX_EXTENSIONS NO)

include(GNUInstallDirs)

# MUST be done before call to clad project
get_cmake_property(_cache_vars CACHE_VARIABLES)
foreach(_cache_var ${_cache_vars})
get_property(_helpstring CACHE ${_cache_var} PROPERTY HELPSTRING)
if(_helpstring STREQUAL
"No help, variable specified on the command line.")
set(CMAKE_ARGS "${CMAKE_ARGS} -D${_cache_var}=\"${${_cache_var}}\"")
endif()
endforeach()

# Generate CMakeArgs.txt file with source, build dir and command line args
write_file("${CMAKE_CURRENT_BINARY_DIR}/CMakeArgs.txt"
"-S${CMAKE_SOURCE_DIR} -B${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_ARGS}")

if(POLICY CMP0075)
cmake_policy(SET CMP0075 NEW)
endif()
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