New comment by sgn on void-packages repository

https://github.com/void-linux/void-packages/pull/46172#issuecomment-1758806108

Comment:
It's better to fix the cross-cc wrappers instead of hacking into the template
```diff
commit 288dedd830a (HEAD -> master)
Author: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Date:   Thu Oct 12 09:09:38 2023 +0700

    wrappers/cross-cc: drop -isystem /usr/include, too

diff --git a/common/wrappers/cross-cc b/common/wrappers/cross-cc
index 0e08bc91d0f..9f9d581a8b7 100644
--- a/common/wrappers/cross-cc
+++ b/common/wrappers/cross-cc
@@ -23,13 +23,13 @@ while [ $i -lt ${#ARGS[@]} ]; do
 			MYARGS+=("-L${arg}")
 		fi
 		unset libpath
-	elif [ "$arg" = "-I" ]; then
+	elif [ "$arg" = "-I" -o "$arg" = "-isystem" ]; then
 		incpath=1
 	elif [ "$arg" = "-L" ]; then
 		libpath=1
-	elif [ "$arg" = "-I/usr/include" -o "$arg" = "-L/usr/lib" \
+	elif [ "$arg" = "-I/usr/include" -o "$arg" = "-isystem/usr/include" \
 		-o "$arg" = "-L/usr/lib32" -o "$arg" = "-L/usr/lib64" \
-		-o "$arg" = "-L/lib" ]; then
+		-o "$arg" = "-L/usr/lib" -o "$arg" = "-L/lib" ]; then
 		echo "[cc-wrapper] ignoring $arg"
 	else
 		MYARGS+=("${arg}")
```