Merge branch 'github/fork/petronny/master' into 'master'

archbuild: read CacheDir from corresponding pacman.conf when mkarchchroot

See merge request archlinux/devtools!50

src/archbuild.in

@@ -78,6 +78,7 @@ check_root SOURCE_DATE_EPOCH,SRCDEST,SRCPKGDEST,PKGDEST,LOGDEST,MAKEFLAGS,PACKAG
 
 # Pass all arguments after -- right to makepkg
 makechrootpkg_args+=("${@:$OPTIND}")
+cachedir=$(pacman-conf -c "${pacman_config}" CacheDir)
 
 # Automatically recreate the root chroot if a version mismatch is detected
 CURRENT_CHROOT_VERSION=$(cat "${chroots}/${repo}-${arch}/root/.arch-chroot")
@@ -105,6 +106,7 @@ if ${clean_first} || [[ ! -d "${chroots}/${repo}-${arch}" ]]; then
 	setarch "${set_arch}" mkarchroot \
 		-C "${pacman_config}" \
 		-M "${makepkg_config}" \
+		-c "${cachedir}" \
 		"${chroots}/${repo}-${arch}/root" \
 		"${base_packages[@]}" || abort
 else