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#
# glob_append(MY_VAR my_glob) will append the results of file(GLOB
# CONFIGURE_DEPENDS my_glob) to MY_VAR
#
# Any number of globs may be specified
#
function(glob_append dest)
file(GLOB files CONFIGURE_DEPENDS ${ARGN})
list(APPEND ${dest} ${files})
set(${dest} ${${dest}} PARENT_SCOPE)
endfunction()
#
# Perform a recursive glob, and exclude any files appropriately according to
# the host system and build options
#
function(slang_glob_sources var dir)
set(patterns
"*.cpp"
"*.h"
"*.natvis"
"*.natstepfilter"
"*.natjmc"
)
if (CMAKE_SYSTEM_NAME MATCHES "Darwin")
list(APPEND patterns "*.mm")
endif()
list(TRANSFORM patterns PREPEND "${dir}/")
file(GLOB_RECURSE files CONFIGURE_DEPENDS ${patterns})
if(NOT WIN32)
list(FILTER files EXCLUDE REGEX "(^|/)windows/.*")
endif()
if(NOT UNIX)
list(FILTER files EXCLUDE REGEX "(^|/)unix/.*")
endif()
if(NOT CMAKE_SYSTEM_NAME MATCHES "Windows" AND NOT SLANG_ENABLE_DX_ON_VK)
list(FILTER files EXCLUDE REGEX "(^|/)d3d.*/.*")
endif()
if(NOT CMAKE_SYSTEM_NAME MATCHES "Windows|Linux|Darwin")
list(FILTER files EXCLUDE REGEX "(^|/)vulkan/.*")
endif()
if(NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
list(FILTER files EXCLUDE REGEX "(^|/)metal/.*")
endif()
if(NOT CMAKE_SYSTEM_NAME MATCHES "Windows")
list(FILTER files EXCLUDE REGEX "(^|/)open-gl/.*")
endif()
list(APPEND ${var} ${files})
set(${var} ${${var}} PARENT_SCOPE)
endfunction()
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