update VERSION to 0.9.27

Also:
- in tests: generate .expect files only if not yet present,
  because
  1) some files were adjusted manually
  2) switching git branche might change timestamps and
     cause unwanted update

VERSION

@@ -1 +1 @@
-0.9.26
+0.9.27

tests/pp/Makefile

@@ -31,11 +31,11 @@ FILTER = 2>&1 | sed 's,$(SRC)/,,g'
 	    && rm -f $*.output
 
 # automatically generate .expect files with gcc:
-%.expect: %.c
-	$(CC) -E -P $< >$*.expect 2>&1
+%.expect: # %.c
+	gcc -E -P $< >$*.expect 2>&1
 
-%.expect: %.S
-	$(CC) -E -P $< >$*.expect 2>&1
+%.expect: # %.S
+	gcc -E -P $< >$*.expect 2>&1
 
 # tell make not to delete
 .PRECIOUS: %.expect

tests/tests2/Makefile

@@ -62,7 +62,7 @@ all test: $(filter-out $(SKIP),$(TESTS))
 	@diff -Nbu $(SRC)/$*.expect $*.output && rm -f $*.output $*.exe
 
 # automatically generate .expect files with gcc:
-%.expect : %.c
+%.expect : # %.c
 	(gcc -w $*.c -o a.exe && ./a.exe $(ARGS)) $(FILTER) >$*.expect 2>&1; rm -f a.exe
 
 # tell make not to delete