X-Git-Url: https://git.distorted.org.uk/~mdw/distorted-chroot/blobdiff_plain/d830630af96cfb510381c73d9462121384484c4f..a6395bc305a7932895bcb591e15b65010ac2b3d5:/Makefile

diff --git a/Makefile b/Makefile
index 72299a7..07f2d3c 100644
--- a/Makefile
+++ b/Makefile
@@ -40,7 +40,7 @@ NOTIFY_FATAL		 = 1
 
 ## Volume group from which to allocate chroot volumes and snapshots.
 CONFIG_VARS		+= VG LVPREFIX
-VG			 = vg-$(shell hostname)
+VG			:= vg-$(shell hostname)
 LVPREFIX		 =
 
 ## Logical volume size, as an LVM option.
@@ -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)
@@ -76,8 +76,8 @@ DISTS			 = $(PRIMARY_DIST) buster bullseye sid
 
 ## Host's native architecture(s).
 CONFIG_VARS		+= MYARCH NATIVE_ARCHS
-MYARCH			 = $(shell dpkg --print-architecture)
-OTHERARCHS		 = $(shell dpkg --print-foreign-architectures)
+MYARCH			:= $(shell dpkg --print-architecture)
+OTHERARCHS		:= $(shell dpkg --print-foreign-architectures)
 NATIVE_ARCHS		 = $(MYARCH) $(OTHERARCHS)
 
 ## Foreign (emulated) architectures to support.
@@ -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/