make: Fix clean rules, change intermediary dir

- Fix the clean and deepclean rules to actually make sense: clean
  removes the intermediary, deepclean removes the outputs
- Change the intermediary directory from `out/` to `build/` to better
  reflect how it is used

.gitignore

@@ -1,5 +1,5 @@
 /compile_commands.json
-/out
+/build
 /docs/*.pdf
 /ain48
 

Makefile

@@ -18,8 +18,8 @@ LDFLAGS += $(shell pkg-config --libs $(LIBS))
 
 # FILES
 SRCS=$(wildcard src/*.c)
-DEPS=$(patsubst src/%.c, out/%.d, $(SRCS))
-OBJS=$(patsubst src/%.c, out/%.o, $(SRCS))
+DEPS=$(patsubst src/%.c, build/%.d, $(SRCS))
+OBJS=$(patsubst src/%.c, build/%.o, $(SRCS))
 
 DOCSRC=$(wildcard docs/*.typ)
 DOCS=$(patsubst docs/%.typ, docs/%.pdf, $(DOCSRC))
@@ -37,25 +37,24 @@ docs/%.pdf: docs/%.typ
 	$(TYPST) c $< $@
 
 clean:
-	$(RM) $(PROGRAM)
-	$(RM) $(DOCS)
-deepclean: clean
 	$(RM) $(OBJS)
 	$(RM) $(DEPS)
 	$(RM) compile_commands.json
+deepclean: clean
+	$(RM) $(PROGRAM)
+	$(RM) $(DOCS)
 
 $(PROGRAM): $(OBJS)
 	$(LD) $(LDFLAGS) $(OBJS) -o $@
 
-
-out/%.d: src/%.c
+build/%.d: src/%.c
 	@mkdir -p $(@D)
 	@set -e ; $(RM) $@; \
 	$(CC) -M $(CFLAGS) $< > $@.$$$$; \
-	sed 's,\($*\)\.o[ :]*,out/\1.o $@ : ,g' < $@.$$$$ > $@; \
+	sed 's,\($*\)\.o[ :]*,build/\1.o $@ : ,g' < $@.$$$$ > $@; \
 	$(RM) $@.$$$$
 
-out/%.o: src/%.c
+build/%.o: src/%.c
 	@mkdir -p $(@D)
 	$(CC) $(CFLAGS) -c $< -o $@