Maintain a separate ccache directory for each target.

[distorted-chroot] / Makefile

diff --git a/Makefile b/Makefile
index a2ba217..07f2d3c 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -64,7 +64,7 @@ APTCONF                        = $(notdir $(wildcard etc/apt-conf.d/[0-9]*[!~]))
 
 ## Proxy setting.
 CONFIG_VARS            += PROXY
-PROXY                  := $(shell \
+PROXY                   = $(shell \
        eval $$(apt-config $(foreach a,$(APTCONF),-cetc/apt-conf.d/$a) \
                shell proxy Acquire::http::proxy); \
        case $${proxy+t} in (t) echo "$$proxy" ;; (*) echo nil ;; esac)
@@ -583,6 +583,17 @@ $(CHECK_SCHROOT_SCRIPTS): check-script/%:
 .PHONY: $(addprefix check-script/,$(SCHROOT_SCRIPTS))
 
 ###--------------------------------------------------------------------------
+### Ccache setup.
+
+CCACHE_CONFIGS          = $(foreach r,$(ALL_CHROOTS), \
+       /var/lib/sbuild/build/.ccache/$(LVPREFIX)$r/ccache.conf)
+all:: $(CCACHE_CONFIGS)
+$(CCACHE_CONFIGS): /var/lib/sbuild/build/.ccache/$(LVPREFIX)%/ccache.conf: \
+               etc/ccache.conf
+       $(V_AT)mkdir -p $(dir $@)
+       $(call v_tag,COPY)cp $< $@.new && mv $@.new $@
+
+###--------------------------------------------------------------------------
 ### `/usr/local/' structure.
 
 LOCAL_COMMON_DIRS       = share/ src/