=== modified file 'common.zsh'
--- common.zsh	2017-11-30 21:04:57 +0000
+++ common.zsh	2017-11-30 21:02:49 +0000
@@ -88,7 +88,7 @@
 
 ifchange() {
 	local arg
-	redo-ifchange "$@" || die "failed to build one or more dependencies: $*"
+	redo-ifchange "$@"
 	for arg in "$@"; do
 		vars[__deps__]+=$'\n'$(filehash $arg)
 	done