Build chain tweaks and cleanup

src/libmittos/Makefile

@@ -6,7 +6,6 @@ CC := ${TARGET}-gcc
 
 SRC := $(shell find -type f -name '*.[cS]*')
 OBJ := $(patsubst %, %.o, $(basename $(basename $(SRC))))
-
 HDR := $(shell find -type f -name '*.h')
 
 CFLAGS := -Wall -Wextra -pedantic -ffreestanding -mcmodel=large -std=c2x
@@ -18,15 +17,19 @@ LDFLAGS := -nostdlib -r
 libmittos.a: $(OBJ)
 	$(LINK.o) $^ $(LOADLIBES) $(LDLIBS) -o $@
 
+
 # Automatic dependency tracking
 DEP := $(OBJ:.o=.d)
 DEPFLAGS = -MT $@ -MMD -MP -MF $*.d
 $(OBJ): CPPFLAGS += $(DEPFLAGS)
 %.d: ;
 
+
+# Installation
 DESTDIR ?= $(BUILDROOT)/sysroot
 LIBDIR := $(DESTDIR)/usr/lib
 INCDIR := $(DESTDIR)/usr/include/mittos
+
 $(LIBDIR)/libmittos.a: libmittos.a
 	install -D $<  $@
 
@@ -38,9 +41,11 @@ install: install-headers $(LIBDIR)/libmittos.a
 
 install-headers: $(HDR:./include/%=$(INCDIR)/%)
 
+
 clean:
 	rm -rf $(OBJ) $(DEP) libmittos.a
 
-.PHONY: install install-headers
+.PHONY: install install-headers clean
+
 # Include automatic dependency rules
 include $(DEP)