From 05905b684d86e6456ae3dba01b44cdeb8690a0a6 Mon Sep 17 00:00:00 2001
From: "Nicholas Nadeau, Ph.D., P.Eng" <nnadeau@users.noreply.github.com>
Date: Wed, 23 Jun 2021 15:53:06 -0400
Subject: [PATCH] Using PHONY for non-file targets

---
 Makefile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Makefile b/Makefile
index b84bd6e..5c3996b 100644
--- a/Makefile
+++ b/Makefile
@@ -54,10 +54,13 @@ PDF_DEPENDENCIES = $(BASE_DEPENDENCIES)
 # Basic actions
 ####################################################################################################
 
+.PHONY: all
 all:	book
 
+.PHONY: book
 book:	epub html pdf docx
 
+.PHONY: clean
 clean:
 	rm -r $(BUILD)
 
@@ -65,12 +68,16 @@ clean:
 # File builders
 ####################################################################################################
 
+.PHONY: epub
 epub:	$(BUILD)/epub/$(OUTPUT_FILENAME).epub
 
+.PHONY: html
 html:	$(BUILD)/html/$(OUTPUT_FILENAME).html
 
+.PHONY: pdf
 pdf:	$(BUILD)/pdf/$(OUTPUT_FILENAME).pdf
 
+.PHONY: docx
 docx:	$(BUILD)/docx/$(OUTPUT_FILENAME).docx
 
 $(BUILD)/epub/$(OUTPUT_FILENAME).epub:	$(EPUB_DEPENDENCIES)