From 65de66afd89ba6df69771bd2d60c59ee3d0eb73f Mon Sep 17 00:00:00 2001
From: Matthias Reichl <hias@horus.com>
Date: Sat, 17 Sep 2022 19:27:05 +0200
Subject: [PATCH] gcc: also install ccache wrapper for gcc:bootstrap

This allows glibc rebuilds to take advantage of ccache, too.

Signed-off-by: Matthias Reichl <hias@horus.com>
---
 packages/lang/gcc/package.mk | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/packages/lang/gcc/package.mk b/packages/lang/gcc/package.mk
index 1105305cbd..61e352171f 100644
--- a/packages/lang/gcc/package.mk
+++ b/packages/lang/gcc/package.mk
@@ -78,6 +78,28 @@ PKG_CONFIGURE_OPTS_HOST="${GCC_COMMON_CONFIGURE_OPTS} \
                          --enable-clocale=gnu \
                          ${TARGET_ARCH_GCC_OPTS}"
 
+post_makeinstall_bootstrap() {
+  GCC_VERSION=$(${TOOLCHAIN}/bin/${TARGET_NAME}-gcc -dumpversion)
+  DATE="0401$(echo ${GCC_VERSION} | sed 's/\./0/g')"
+  CROSS_CC=${TARGET_PREFIX}gcc-${GCC_VERSION}
+
+  rm -f ${TARGET_PREFIX}gcc
+
+cat > ${TARGET_PREFIX}gcc <<EOF
+#!/bin/sh
+${TOOLCHAIN}/bin/ccache ${CROSS_CC} "\$@"
+EOF
+
+  chmod +x ${TARGET_PREFIX}gcc
+
+  # To avoid cache trashing
+  touch -c -t ${DATE} ${CROSS_CC}
+
+  # install lto plugin for binutils
+  mkdir -p ${TOOLCHAIN}/lib/bfd-plugins
+    ln -sf ../gcc/${TARGET_NAME}/${GCC_VERSION}/liblto_plugin.so ${TOOLCHAIN}/lib/bfd-plugins
+}
+
 pre_configure_host() {
   unset CPP
 }