2025-01-08 11:14:09 +01:00
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# Rust bindgen uses Clang to generate bindings, but that means that it can't
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# find the "system" or compiler headers when the stdenv compiler is GCC.
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# This script tells it where to find them.
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echo "Extending BINDGEN_EXTRA_CLANG_ARGS with system include paths..." 2>&1
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2025-01-20 12:50:40 +01:00
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BINDGEN_EXTRA_CLANG_ARGS="${BINDGEN_EXTRA_CLANG_ARGS:-}"
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2025-01-08 11:14:09 +01:00
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export BINDGEN_EXTRA_CLANG_ARGS
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include_paths=$(
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echo | $NIX_CC_UNWRAPPED -v -E -x c - 2>&1 \
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| awk '/#include <...> search starts here:/{flag=1;next} \
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/End of search list./{flag=0} \
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flag==1 {print $1}'
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)
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for path in $include_paths; do
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echo " - $path" 2>&1
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BINDGEN_EXTRA_CLANG_ARGS="$BINDGEN_EXTRA_CLANG_ARGS -I$path"
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done
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