From c72538a6cf8fae1bda440c6b328d342f03ae4fcf Mon Sep 17 00:00:00 2001
From: Kaspar Schleiser <kaspar@schleiser.de>
Date: Fri, 14 Aug 2015 00:31:36 +0200
Subject: [PATCH] make: ccache: set ccache basedir to RIOTBASE

---
 Makefile.docker  | 1 +
 Makefile.include | 2 ++
 Makefile.vars    | 3 +++
 3 files changed, 6 insertions(+)

diff --git a/Makefile.docker b/Makefile.docker
index 02b087b1de..725656d482 100644
--- a/Makefile.docker
+++ b/Makefile.docker
@@ -86,6 +86,7 @@ DOCKER_ENVIRONMENT_CMDLINE := $(strip $(DOCKER_ENVIRONMENT_CMDLINE))
 	    -v '$(RIOTPROJECT):$(DOCKER_BUILD_ROOT)/riotproject' \
 	    -v /etc/localtime:/etc/localtime:ro \
 	    -e 'RIOTBASE=$(DOCKER_BUILD_ROOT)/riotbase' \
+	    -e 'CCACHE_BASEDIR=$(DOCKER_BUILD_ROOT)/riotbase' \
 	    -e 'RIOTCPU=$(DOCKER_BUILD_ROOT)/riotcpu' \
 	    -e 'RIOTBOARD=$(DOCKER_BUILD_ROOT)/riotboard' \
 	    -e 'RIOTPROJECT=$(DOCKER_BUILD_ROOT)/riotproject' \
diff --git a/Makefile.include b/Makefile.include
index 013c80be18..da21c6a2cf 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -4,6 +4,8 @@ all:
 RIOTBASE ?= $(shell dirname "$(lastword $(MAKEFILE_LIST))")
 RIOTBASE := $(abspath $(RIOTBASE))
 
+CCACHE_BASEDIR := $(RIOTBASE)
+
 RIOTCPU ?= $(RIOTBASE)/cpu
 RIOTCPU := $(abspath $(RIOTCPU))
 
diff --git a/Makefile.vars b/Makefile.vars
index 2b67ff7fe7..56cad8ebb5 100644
--- a/Makefile.vars
+++ b/Makefile.vars
@@ -53,6 +53,9 @@ export DEBUGSERVER_FLAGS     # The parameters to supply to DEBUGSERVER.
 export RESET                 # The command to call on "make reset", this command resets/reboots the target.
 export RESET_FLAGS           # The parameters to supply to RESET.
 
+export CCACHE_BASEDIR        # ccache basedir, allows multiple riot build
+                             # directories to share a ccache directory
+
 export DOWNLOAD_TO_FILE      # Use `$(DOWNLOAD_TO_FILE) $(DESTINATION) $(URL)` to download `$(URL)` to `$(DESTINATION)`.
 export DOWNLOAD_TO_STDOUT    # Use `$(DOWNLOAD_TO_STDOUT) $(URL)` to download `$(URL)` output `$(URL)` to stdout, e.g. to be piped into `tar xz`.
 export UNZIP_HERE            # Use `cd $(SOME_FOLDER) && $(UNZIP_HERE) $(SOME_FILE)` to extract the contents of the zip file `$(SOME_FILE)` into `$(SOME_FOLDER)`.
-- 
GitLab