[libc-commits] [libc] [libc] Revamp hdrgen command line and build integration (PR #121522)

[Petr Hosek via libc-commits]

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@@ -97,8 +94,11 @@ function(add_gen_header target_name)
   set(absolute_path ${CMAKE_CURRENT_SOURCE_DIR}/${ADD_GEN_HDR_GEN_HDR})
   file(RELATIVE_PATH relative_path ${LIBC_INCLUDE_SOURCE_DIR} ${absolute_path})
   set(out_file ${LIBC_INCLUDE_DIR}/${relative_path})
+  set(dep_file "${out_file}.d")
+  file(RELATIVE_PATH rel_out_file ${CMAKE_BINARY_DIR} ${out_file})
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petrhosek wrote:

CMake uses absolute paths everywhere so there's no point in relativizing these.

https://github.com/llvm/llvm-project/pull/121522