partially revert 6985b28d as it breaks the whole…

partially revert 6985b28d as it breaks the whole idea of testing for bug 20033

configure.in

@@ -2552,11 +2552,11 @@ A := \$(wildcard *.a)
 
 .PHONY: all
 all: \$(A:.a=.b)
-    @echo survived bug20033.
+	@echo survived bug20033. #dont kill these tabs, you will break the Makefile!!!!
 
 .PHONY: setup
 setup:
-    @touch 1.a 2.a 3.a 4.a 5.a 6.a
+	@touch 1.a 2.a 3.a 4.a 5.a 6.a
 
 define d1
 @echo lala \$(1)
@@ -2569,9 +2569,9 @@ define d2
 endef
 
 %.b : %.a
-    \$(eval CHECKSUM := \$(word 1,\$(shell cat \$^ | sha1sum))) \$(if \$(wildcard \$(CACHEDIR)/\$(CHECKSUM)),\
-    \$(call d1,\$(CHECKSUM)),\
-    \$(call d2,\$(CHECKSUM)))
+	\$(eval CHECKSUM := \$(word 1,\$(shell cat \$^ | sha1sum))) \$(if \$(wildcard \$(CACHEDIR)/\$(CHECKSUM)),\
+	\$(call d1,\$(CHECKSUM)),\
+	\$(call d2,\$(CHECKSUM)))
 EOF
     if test -z "`(cd $TESTGMAKEBUG20033 && $GNUMAKE setup && $GNUMAKE -j)|grep survived`"; then
         no_parallelism_make="YES"