Add subdirectory for grains recipes

Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>

Makefile

@@ -1,8 +1,11 @@
 
+dirs := breakfast grains
+pdfs := $(foreach dir, $(dirs), $(dir)/$(dir).pdf)
+
 all:
-	$(MAKE) -C breakfast/
-	cp breakfast/breakfast.pdf cookbook.pdf
+	$(foreach dir, $(dirs), $(MAKE) -C $(dir);)
+	pdfjoin -o cookbook.pdf $(pdfs)
 
 clean:
+	$(foreach dir, $(dirs), $(MAKE) -C $(dir)/ clean;)
 	rm cookbook.pdf
-	cd breakfast/ && make clean

grains/0_title.tex

@@ -0,0 +1,7 @@
+%
+% Copyright 2016 (c) Anna Schumaker.
+%
+\documentclass{../titlepage}
+\begin{document}
+\setTitle{Grains}
+\end{document}

grains/Makefile

@@ -0,0 +1,11 @@
+
+SOURCES = $(sort $(wildcard *.tex))
+OBJECTS = $(patsubst %.tex, %.pdf, $(SOURCES))
+
+all:
+	latexmk -pdf $(SOURCES)
+	pdfjoin -o grains.pdf $(OBJECTS)
+
+clean:
+	latexmk -C
+	rm grains.pdf