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add PXR_SYMLINK_HEADER_FILES cmake option #150

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add PXR_SYMLINK_HEADER_FILES cmake option #150

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1 change: 1 addition & 0 deletions cmake/defaults/Options.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ option(PXR_ENABLE_HDF5_SUPPORT "Enable HDF5 backend in the Alembic plugin for US
option(PXR_ENABLE_PTEX_SUPPORT "Enable Ptex support" ON)
option(PXR_MAYA_TBB_BUG_WORKAROUND "Turn on linker flag (-Wl,-Bsymbolic) to work around a Maya TBB bug" OFF)
option(PXR_ENABLE_NAMESPACES "Enable C++ namespaces." ON)
option(PXR_SYMLINK_HEADER_FILES "Symlink the header files from, ie, pxr/base/lib/tf to CMAKE_DIR/pxr/base/tf, instead of copying; ensures that you may edit the header file in either location, and improves experience in IDEs which find normally the \"copied\" header, ie, CLion; has no effect on windows" OFF)

# Precompiled headers are a win on Windows, not on gcc.
set(pxr_enable_pch "OFF")
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39 changes: 29 additions & 10 deletions cmake/macros/Private.cmake
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Expand Up @@ -48,17 +48,36 @@ function(_install_headers LIBRARY_NAME)
set(infile "${CMAKE_CURRENT_SOURCE_DIR}/${f}")
set(outfile "${header_dest_dir}/${f}")
list(APPEND files_copied ${outfile})
add_custom_command(
if(PXR_SYMLINK_HEADER_FILES AND NOT WIN32)
# cmake -E create_symlink doesn't create parent directories, while
# copy does... so need an extra command to make dir

# Also, if ${f} has a directory, header_parent_dir will be
# different than header_dest_dir
get_filename_component(header_parent_dir ${outfile} DIRECTORY)
add_custom_command(
OUTPUT ${outfile}
COMMAND "${CMAKE_COMMAND}"
ARGS -E make_directory "${header_parent_dir}"
COMMAND "${CMAKE_COMMAND}"
ARGS -E create_symlink "${infile}" "${outfile}"
MAIN_DEPENDENCY "${infile}"
COMMENT "Symlinking ${f} ..."
VERBATIM
)
else()
add_custom_command(
OUTPUT ${outfile}
COMMAND
"${PYTHON_EXECUTABLE}"
"${PROJECT_SOURCE_DIR}/cmake/macros/copyHeaderForBuild.py"
"${infile}"
"${outfile}"
MAIN_DEPENDENCY "${infile}"
COMMENT "Copying ${f} ..."
VERBATIM
)
COMMAND
"${PYTHON_EXECUTABLE}"
"${PROJECT_SOURCE_DIR}/cmake/macros/copyHeaderForBuild.py"
"${infile}"
"${outfile}"
MAIN_DEPENDENCY "${infile}"
COMMENT "Copying ${f} ..."
VERBATIM
)
endif()
endforeach()
endif()
endfunction() # _install_headers
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