[wookey] don't use an intermediate file, rely on a loader.meta dir

This looks more like analysis.mk does, and the intermediate file
(as opposed to the intermediate Frama-C state) does not retain the
status of deduced properties

case_studies/wookey/loader/GNUmakefile

@@ -78,36 +78,29 @@ WP_CUSTOM ?=
 WP_FLAGS= -wp-par $(CORES) -wp-timeout 20 -wp-no-warn-memory-model -wp-cache update $(WP_CUSTOM)
 
 META_FLAGS= #-meta-keep-proof-files
-OUT_FILE= gen.c
-
 
 IMPORT_FILE = spec-annots.acsl
 ALL_FILES = $(filter-out $(EXCLUDE), $(wildcard $(SRCS)))
 FRAMAC_EXEC := frama-c
 FRAMAC = $(FRAMAC_EXEC) $(FCFLAGS)
 META = -meta $(META_FLAGS)
-IMPORT = -acsl-import $(IMPORT_FILE) 
+IMPORT = -acsl-import $(IMPORT_FILE)
 
 parse: $(MAIN_TARGET).parse
-gen_prove: $(MAIN_TARGET).parse
+$(MAIN_TARGET).meta: $(MAIN_TARGET).parse
+	mkdir -p $@
 	$(FRAMAC) -load $^/framac.sav \
           -then-on translation -set-project-as-default \
-          -then $(IMPORT) -then -wp $(WP_FLAGS)
-gen: $(OUT_FILE)
-
-$(OUT_FILE): $(MAIN_TARGET).parse
-	$(FRAMAC) -load $^/framac.sav \
-        -then-on translation -set-project-as-default \
-        -then $(IMPORT) -then -ocode $(OUT_FILE) -print
-
-wp: $(OUT_FILE)
-	$(FRAMAC) $(OUT_FILE) -wp $(WP_FLAGS)
+          -then $(IMPORT) -then -wp $(WP_FLAGS) \
+          -then -save $@/framac.sav \
+          -then -ocode $@/result.c -print \
+          -then -report-csv $@/result.csv \
+        | tee $@/framac.log
 
-prove_gui: $(OUT_FILE)
-	$(FRAMAC_EXEC)-gui $(OUT_FILE) -wp $(WP_FLAGS)
+meta: $(MAIN_TARGET).meta
 
 clean::
-	rm -f $(OUT_FILE)
 	rm -rf $(MAIN_TARGET).parse
+	rm -rf $(MAIN_TARGET).meta
 
 include $(shell $(FRAMAC)-config -print-lib-path)/analysis-scripts/epilogue.mk