fix deps warnings

Makefile

@@ -13,23 +13,22 @@ XELATEX != command -v xelatex 2> /dev/null
 
 # default target
 help:
-	@echo "Targets:"
+	$(info all   - build all formats)
-	@echo -e "\tall   - build all formats"
+	$(info pdf   - generate all issues as pdf)
-	@echo -e "\tpdf   - generate all issues as pdf"
+	$(info html  - generate all issues as html)
-	@echo -e "\thtml  - generate all issues as html"
+	$(info epub  - generate all issues as epub)
-	@echo -e "\tepub  - generate all issues as epub"
+	$(info clean - remove build artifacts)
-	@echo -e "\tclean - remove build artifacts"
 
-all: pdf html epub dep-pandoc
+all: dep-pandoc pdf html epub
 
-pdf: $(DEST_PDF_FILES) dep-xelatex
+pdf: dep-xelatex $(DEST_PDF_FILES)
 
 html: $(DEST_HTML_FILES)
 
 epub: $(DEST_EPUB_FILES)
 
 $(DEST_DIR)/issue-%.pdf: issues/%
-	@echo "building $@"
+	$(info building $@)
 	@$(PANDOC) \
 		--file-scope \
 		--from markdown \
@@ -43,7 +42,7 @@ $(DEST_DIR)/issue-%.pdf: issues/%
 		$</*.md
 
 $(DEST_DIR)/issue-%.html: issues/%
-	@echo "building $@"
+	$(info building $@)
 	@$(PANDOC) \
 		--file-scope \
 		--from markdown \
@@ -60,7 +59,7 @@ $(DEST_DIR)/issue-%.html: issues/%
 		$</*.md
 
 $(DEST_DIR)/issue-%.epub: issues/%
-	@echo "building $@"
+	$(info building $@)
 	@$(PANDOC) \
 		--file-scope \
 		--from markdown \
@@ -73,7 +72,7 @@ $(DEST_DIR)/issue-%.epub: issues/%
 		$</*.md
 
 clean:
-	@echo "removing build artifacts"
+	$(info removing build artifacts)
 	@rm $(DEST_DIR)/*.{pdf,html,epub}
 
 dep-pandoc: