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4c4fc2299c
The easy part is to add NIX_CFLAGS_COMPILE for "regular" libraries. A bit more tricky is to add the required flags for libclang to find libstdcxx. For this we parse arguments to bindgen to look for -x c++ or -xc++ and if found add NIX_CXXSTDLIB_COMPILE to the arguments. This variable is populated by a complex dance of setupHooks. We trigger this by adding clang to propagatedBuildInputs. A more subtle way may exist.
37 lines
961 B
Bash
Executable file
37 lines
961 B
Bash
Executable file
#!/usr/bin/env bash
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sep='--' # whether to add -- before new options
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cxx=0 # whether cxx was explicitly requested
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lastWasx=0 # whether the last argument passed was -x
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for e in "$@"; do
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if [[ "$e" == "--" ]]; then
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sep=
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fi;
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if [[ "$sep" == "" ]]; then
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# we look for -x c++ after -- only
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if [[ "$e" == "-x" ]]; then
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lastWasx=1
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fi;
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if [[ $lastWasx -eq 1 && "$e" == "c++" ]]; then
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lastWasx=0
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cxx=1
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fi;
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if [[ "$e" == "-xc++" || "$e" == -std=c++* ]]; then
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cxx=1
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fi;
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fi;
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done;
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cxxflags=
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if [[ $cxx -eq 1 ]]; then
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cxxflags=$NIX_CXXSTDLIB_COMPILE
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fi;
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if [[ -n "$NIX_DEBUG" ]]; then
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set -x;
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fi;
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export LIBCLANG_PATH="@libclang@/lib"
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# shellcheck disable=SC2086
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# cxxflags and NIX_CFLAGS_COMPILE should be word-split
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exec -a "$0" @out@/bin/.bindgen-wrapped "$@" $sep $cxxflags $NIX_CFLAGS_COMPILE
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# note that we add the flags after $@ which is incorrect. This is only for the sake
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# of simplicity.
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