clang-tools: teach about nix's include path

By translating NIX_CFLAGS_COMPILE to CPATH,
all tools will now find c headers properly,
when run in a nix-shell.
This commit is contained in:
Jörg Thalheim 2019-11-13 14:38:22 +00:00
parent 5d2dc6fd79
commit a10ef1aa4f
No known key found for this signature in database
GPG key ID: B3F5D81B0C6967C4
2 changed files with 28 additions and 3 deletions

View file

@ -13,15 +13,20 @@ in stdenv.mkDerivation {
runHook preInstall
mkdir -p $out/bin
export libc_includes="${stdenv.lib.getDev stdenv.cc.libc}/include"
export libcpp_includes="${llvmPackages.libcxx}/include/c++/v1"
export clang=${clang}
substituteAll ${./wrapper} $out/bin/clangd
chmod +x $out/bin/clangd
for tool in \
clang-apply-replacements \
clang-check \
clang-format \
clang-rename \
clang-tidy \
clangd
clang-tidy
do
ln -s ${clang}/bin/$tool $out/bin/$tool
ln -s $out/bin/clangd $out/bin/$tool
done
runHook postInstall

View file

@ -0,0 +1,20 @@
#!/bin/sh
buildcpath() {
local path
while (( $# )); do
case $1 in
-isystem)
shift
path=$path${path':'}$1
esac
shift
done
echo $path
}
export CPATH=${CPATH}${CPATH:+':'}$(buildcpath ${NIX_CFLAGS_COMPILE})
export CPATH=${CPATH}${CPATH:+':'}@libc_includes@
export CPLUS_INCLUDE_PATH=${CPATH}${CPATH:+':'}@libcpp_includes@
exec -a "$0" @clang@/bin/$(basename $0) "$@"