$CPATH is taken to mean the same thing as -I by clang, whereas
$C_INCLUDE_PATH is -isystem. Using $CPATH means tools like clangd will
generate warnings for problems in system headers, which is undesirable.
See llvm/llvm-project#154015
this was done manually, fixing the eval and any remaining stuff of the previous commit
together with the previous commit this shouldn't create any rebuilds
this creates some eval errors that will be fixed in the next commit
done with the following script:
```fish
\#!/usr/bin/env fish
set packagesjson (nix eval --impure --json --expr '
let
lib = import ./lib;
in
import pkgs/servers/x11/xorg/default.nix (lib.mapAttrs (
name: _:
if name == "lib" then
lib
else if name == "config" then
{ allowAliases = false; }
else
name
) (__functionArgs (import pkgs/servers/x11/xorg/default.nix))) { }
' | jq)
set one (grep '^ [A-Za-z0-9_-]*$' pkgs/servers/x11/xorg/default.nix | string trim | string replace -r '$' Z | sort | string sub -e -1)
set two (grep '^ [A-Za-z0-9_-]* = [A-Za-z0-9_-]*;$' pkgs/servers/x11/xorg/default.nix | cut -d= -f1 | string trim | string replace -r '$' Z | sort | string sub -e -1)
for arg in $one $two
set oname $arg
set nname (echo $packagesjson | jq -r .$oname)
if test $nname = null
echo (set_color red)warn:(set_color normal) unknown package xorg.$oname >&2
continue
end
echo $oname "->" $nname
# replace basic xorg.$name references
for file in (rg -F "xorg.$oname" --files-with-matches pkgs)
# special cases
sd -F "$oname = xorg.$oname;" "$nname = $nname;" $file
# replace
sd -F "xorg.$oname" "$nname" $file
# fixup function arguments
# prevent duplicate function args
if grep -E " ($oname|$nname),\$" $file >/dev/null
continue
end
if grep 'xorg\..' $file >/dev/null # case1: there is more so we can't just remove the function arg
if grep ' xorg,$' $file >/dev/null
sd ' xorg,$' " xorg,
$nname," $file
else if grep ' xorg ? .*,$' $file >/dev/null
sd 'xorg( ? .*),$' "xorg\$1,
$nname," $file
else
sd -F 'xorg,' "$nname,
xorg," $file
end
else # case there is no more xorg..* so we can just replace the function arg
sd 'xorg(| ? .*),.*$' "$nname," $file
end
end
end
nix fmt
```
