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modules: nanopb: fix race condition in zephyr_nanopb_sources

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When one generated .pb.h file includes another generated .pb.h file,
the build can fail because compilation may start before all headers
are generated.

The nanopb_generated_headers target collects all proto generation
targets as dependencies, but the calling target was not depending on
it. This can cause a race condition where the compiler fails with
"No such file or directory" for included headers.

Make the calling target depend on nanopb_generated_headers to ensure
all protobuf headers are generated before source compilation begins.

Signed-off-by: Nick Brook <nrbrook@gmail.com>
This commit is contained in:
Nick Brook
2025-12-29 13:22:48 +00:00
committed by Henrik Brix Andersen
parent 0436b8abd8
commit c6ba1a067c
1 changed files with 1 additions and 0 deletions
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modules/nanopb/nanopb.cmake
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@@ -41,4 +41,5 @@ function(zephyr_nanopb_sources target)
add_custom_target(${gen_target_name} DEPENDS ${proto_hdrs})
add_dependencies(nanopb_generated_headers ${gen_target_name})
add_dependencies(${target} nanopb_generated_headers)
endfunction()