[libc-commits] [libc] [libc] Output all headers with LIBC_CONF_OUTPUT_ALL_HEADERS (PR #144114)

[Michael Jones via libc-commits]

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@@ -97,8 +97,13 @@ function(add_gen_header target_name)
   set(out_file ${LIBC_INCLUDE_DIR}/${relative_path})
   set(dep_file "${out_file}.d")
   set(yaml_file ${CMAKE_SOURCE_DIR}/${ADD_GEN_HDR_YAML_FILE})
+  
+  if(LIBC_CONF_OUTPUT_ALL_HEADERS)
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michaelrj-google wrote:

This flag looks good, but you should add an `option` in the cmake to the top level CMakeLists: https://github.com/llvm/llvm-project/blob/main/libc/CMakeLists.txt#L138

Also the `CONF` options are intended to come from `config.json`, this user-exposed cmake flag can just be `LIBC_OUTPUT_ALL_HEADERS`

https://github.com/llvm/llvm-project/pull/144114