chore: makefile: updated the 'clean' target to support local builds.

The new `util/build.sh` script and embedded test suite in this repo
warrant some updates to the `clean` target.

Author: thibaultcha

.gitignore

@@ -1 +1 @@
-build
+out/

Makefile

@@ -1,13 +1,14 @@
 SUBSYS?=http
-DESTDIR?=build/src
+DESTDIR?=out/src
 
 TEMPLATE_SOURCES=$(wildcard src/subsys/*.tt2)
 TEMPLATE_TARGETS=$(subst _subsys_,_$(SUBSYS)_, $(patsubst src/subsys/%.tt2, $(DESTDIR)/%, $(TEMPLATE_SOURCES)))
 API_TEMPLATE_SOURCES=$(wildcard src/subsys/api/*.tt2)
 API_TEMPLATE_TARGETS=$(subst _subsys_,_$(SUBSYS)_, $(patsubst src/subsys/%.tt2, $(DESTDIR)/%, $(API_TEMPLATE_SOURCES)))
 MINI_TT2=util/mini-tt2.pl
 
-.PHONY: all
+.PHONY: all clean
+
 all: $(DESTDIR)/api $(TEMPLATE_TARGETS) $(API_TEMPLATE_TARGETS)
 	find src/$(SUBSYS) -type f -name '*.tt2' -exec $(MINI_TT2) -d $(DESTDIR) -s $(SUBSYS) '{}' ';'
 	$(shell cp src/$(SUBSYS)/*.{h,c} $(DESTDIR))
@@ -30,6 +31,5 @@ $(DESTDIR)/%: src/subsys/%.tt2
 $(DESTDIR)/api:
 	mkdir -p $(DESTDIR)/api
 
-.PHONY: clean
 clean:
-	rm -rf build
+	rm -rf out buildroot work t/servroot*