[libc-commits] [libc] [libc] newheadergen: cmake configuration (PR #98554)

[Michael Jones via libc-commits]

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@@ -66,7 +66,91 @@ function(add_header target_name)
   )
 endfunction(add_header)
 
-# A rule for generated header file targets.
+function(add_gen_header2 target_name)
+  cmake_parse_arguments(
+    "ADD_YAML_HDR"
+    "PUBLIC" # No optional arguments
+    "YAML_FILE;DEF_FILE;GEN_HDR" # Single value arguments
+    "DEPENDS"     # Multi value arguments
+    ${ARGN}
+  )
+  get_fq_target_name(${target_name} fq_target_name)
+  if(NOT LLVM_LIBC_FULL_BUILD)
+    # We don't want to use generated headers if we are doing a non-full-build.
+    add_library(${fq_target_name} INTERFACE)
+    return()
+  endif()
+  if(NOT ADD_YAML_HDR_DEF_FILE)
+    message(FATAL_ERROR "`add_yaml_hdr` rule requires DEF_FILE to be specified.")
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michaelrj-google wrote:

these also need to be updated

https://github.com/llvm/llvm-project/pull/98554