Fix build rules

.gitignore

@@ -1,4 +1,5 @@
 /docs/
+_build
 /lib/
 /bin/
 /.shards/

Makefile

@@ -4,24 +4,24 @@ SOURCES=$(shell find -name '*.cr')
 LDFLAGS=
 DESTDIR=/usr
 
-BUILDDIR=_build
+BUILD_DIR=_build
 
 all: build
 
 $(BUILD_DIR):
 	mkdir -p $(BUILD_DIR)
 
-$(BUILDDIR)/kathmandu_time: $(BUILDDIR) $(SOURCES)
-	crystal build $(LDFLAGS) src/kathmandu_time.cr -o $(BUILDDIR)/kathmandu_time
+$(BUILD_DIR)/kathmandu_time: $(BUILD_DIR) $(SOURCES)
+	crystal build $(LDFLAGS) src/kathmandu_time.cr -o $(BUILD_DIR)/kathmandu_time
 
-build: $(BUILDDIR)/kathmandu_time
+build: $(BUILD_DIR)/kathmandu_time
 
 build-release: LDFLAGS=--release --no-debug
 build-release: build
 
 install: build
 	install -m 0755 -o root -g root \
-		$(BUILDDIR)/kathmandu_time \
+		$(BUILD_DIR)/kathmandu_time \
 		$(DESTDIR)/bin/kathmandu_time
 
 spec:
@@ -33,5 +33,5 @@ run:
 	crystal run src/kathmandu_time.cr
 
 clean:
-	rm -f $(BUILDDIR)/kathmandu_time
+	rm -f $(BUILD_DIR)/kathmandu_time
 

README.md

@@ -8,6 +8,7 @@ TODO: Write installation instructions here
 
 ## Usage
 
+
 TODO: Write usage instructions here
 
 ## Development