Backed out changeset 6b87b58ff491 (follow-up to bug 793953) because of make insanity

DONTBUILD this, like the ones before it

client.mk

@@ -61,7 +61,9 @@ endif
 AUTOCONF ?= $(shell which autoconf-2.13 autoconf2.13 autoconf213 2>/dev/null | grep -v '^no autoconf' | head -1)
 
 # See if the autoconf package was installed through fink
-AUTOCONF ?= $(shell which fink >/dev/null 2>&1 && echo `which fink`/../../lib/autoconf2.13/bin/autoconf)
+ifeq (,$(strip $(AUTOCONF)))
+AUTOCONF = $(shell which fink >/dev/null 2>&1 && echo `which fink`/../../lib/autoconf2.13/bin/autoconf)
+endif
 
 ifeq (,$(strip $(AUTOCONF)))
 AUTOCONF=$(error Could not find autoconf 2.13)