libc/src/__support/CMakeLists.txt - third_party/github.com/llvm/llvm-project - Git at Google

 add_gen_header(
   support_common_h
   DEF_FILE common.h.def
   PARAMS
     platform_defs=../../config/${LIBC_TARGET_OS}/platfrom_defs.h.inc
   GEN_HDR common.h
   DATA_FILES
     ../../config/${LIBC_TARGET_OS}/platfrom_defs.h.inc
 )
	add_gen_header(
	support_common_h
	DEF_FILE common.h.def
	PARAMS
	platform_defs=../../config/${LIBC_TARGET_OS}/platfrom_defs.h.inc
	GEN_HDR common.h
	DATA_FILES
	../../config/${LIBC_TARGET_OS}/platfrom_defs.h.inc
	)