From 80f135d8072fc4a9262ad767736b909bb40bcc3d Mon Sep 17 00:00:00 2001
From: Florian Walch <florian@fwalch.com>
Date: Sun, 17 May 2015 19:02:48 +0300
Subject: [PATCH] Makefile: Don't remove PDF on `make clean`.

Add `purge` target to remove all output.
---
 Makefile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 570e1d4..10e9310 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,14 @@
 FILE := main
 OUT  := build
 
-latexmk:
+pdf:
 	# Also see .latexmkrc
 	latexmk -outdir=$(OUT) -pdf $(FILE)
 
 clean:
+	rm -rf $(filter-out $(OUT)/$(FILE).pdf, $(wildcard $(OUT)/*))
+
+purge:
 	rm -rf $(OUT)
 
-.PHONY: latexmk clean
+.PHONY: latexmk clean purge