Anonymous

Index: toolchain/gcc/Config.in
===================================================================
--- toolchain/gcc/Config.in     (revision 4317)
+++ toolchain/gcc/Config.in     (working copy)
@@ -47,3 +47,9 @@
            Build/install c++ compiler and libstdc++?


+config USE_CCACHE
+       bool
+       prompt "Use ccache if installed on system"
+       default u
+       help
+           If ccache is installed on the buildhost make the links to it from the cross compiler so that we can take advantage of it.
Index: toolchain/gcc/Makefile
===================================================================
--- toolchain/gcc/Makefile      (revision 4317)
+++ toolchain/gcc/Makefile      (working copy)
@@ -44,8 +44,8 @@

 BUILD_DIR1:=$(TOOL_BUILD_DIR)/gcc-$(PKG_VERSION)-initial
 BUILD_DIR2:=$(TOOL_BUILD_DIR)/gcc-$(PKG_VERSION)-final
+ccache := $(shell which ccache)

-
 define Stage1/Configure
        mkdir -p $(BUILD_DIR1)
        (cd $(BUILD_DIR1); rm -f config.cache; PATH=$(TARGET_PATH) \
@@ -107,6 +107,17 @@
                        $(GNU_TARGET_NAME)$${app##$(REAL_GNU_TARGET_NAME)}; \
                done; \
        );
+       ifeq ($(CONFIG_USE_CCACHE),y)
+               ifneq (,$(ccache))
+                       set -e; \
+                       (cd $(STAGING_DIR); \
+                       cd usr/bin ; \
+                       for app in gcc c++ g++; do \
+                               ln -sf $(ccache) $$(app) \
+                       done; \
+                       );
+               endif
+       endif
 endef

 define Build/Prepare
Index: rules.mk
===================================================================
--- rules.mk    (revision 4317)
+++ rules.mk    (working copy)
@@ -35,8 +35,8 @@

 REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
 GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
-KERNEL_CROSS:=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
-TARGET_CROSS:=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
+KERNEL_CROSS:=$(OPTIMIZE_FOR_CPU)-linux-uclibc-
+TARGET_CROSS:=$(OPTIMIZE_FOR_CPU)-linux-uclibc-
 IMAGE:=$(BUILD_DIR)/root_fs_$(ARCH)

 TARGET_PATH:=$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin