From 883a1bf2c09be0b335e067059ffc84f3a676048d Mon Sep 17 00:00:00 2001
From: Hao Chen <chenhao.yalier@gmail.com>
Date: Tue, 7 Jun 2022 22:00:59 +0000
Subject: [PATCH] Generate ccache wrapper scripts instead of symlink

Tested with Bazel 5.2. It is a workaround for issue
https://github.com/bazelbuild/rules_cc/issues/130
---
 scripts/toolchain.sh | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/scripts/toolchain.sh b/scripts/toolchain.sh
index 9e5e39f4..db952d32 100755
--- a/scripts/toolchain.sh
+++ b/scripts/toolchain.sh
@@ -14,10 +14,16 @@ pushd "$(dirname "$0")/.."
 if which ccache >/dev/null 2>&1 && ([ -d 'run' ] && [ -w 'run' ] || [ -w '.' ]); then
     rm -rf 'run/toolchain'
     mkdir -p 'run/toolchain'
-    ln -sf "$(which ccache)" "run/toolchain/$CC"
-    ln -sf "$(which ccache)" "run/toolchain/$CXX"
-    export CC="$( realpath -e "run/toolchain")/$CC"
-    export CXX="$(realpath -e "run/toolchain")/$CXX"
+    NEW_CC_DIR="$( realpath -e "run/toolchain")"
+
+    for compiler in $CC $CXX; do
+        echo """#!/bin/bash
+$(which ccache) $(which $compiler) \$@
+        """ > "$NEW_CC_DIR"/$compiler
+    done
+
+    chmod +x "$NEW_CC_DIR"/*
+    export PATH="$NEW_CC_DIR":$PATH
 fi
 
 popd