nixpkgs/pkgs/games/crawl/crawl_purify.patch

diff -ru3 crawl-ref-0.18.1-src-old/crawl-ref/source/Makefile crawl-ref-0.18.1-src/crawl-ref/source/Makefile
--- crawl-ref-0.18.1-src-old/crawl-ref/source/Makefile	1970-01-01 03:00:01.000000000 +0300
+++ crawl-ref-0.18.1-src/crawl-ref/source/Makefile	2016-09-04 17:25:54.310929928 +0300
@@ -285,7 +285,7 @@
 LIBZ := contrib/install/$(ARCH)/lib/libz.a
 
 ifndef CROSSHOST
-	SQLITE_INCLUDE_DIR := /usr/include
+	SQLITE_INCLUDE_DIR := ${sqlite}/include
 else
 	# This is totally wrong, works only with some old-style setups, and
 	# on some architectures of Debian/new FHS multiarch -- excluding, for
@@ -957,9 +957,9 @@
   SYS_PROPORTIONAL_FONT = $(shell { name=$(OUR_PROPORTIONAL_FONT);\
     {\
       fc-list | sed 's/: .*//' | grep -Fi "/$$name";\
-      for dir in /usr/share/fonts /usr/local/share/fonts /usr/*/lib/X11/fonts;\
+      for dir in ${dejavu_fonts}/share/fonts;\
       do [ -d $$dir ] && echo $$dir; done;\
-    } | xargs -I% find % -type f -iname $$name -print | head -n1; } 2>/dev/null)
+    } | xargs -I% find -L % -type f -iname $$name -print | head -n1; } 2>/dev/null)
   ifneq (,$(SYS_PROPORTIONAL_FONT))
     ifeq (,$(COPY_FONTS))
       DEFINES += -DPROPORTIONAL_FONT=\"$(SYS_PROPORTIONAL_FONT)\"
@@ -982,9 +982,9 @@
   SYS_MONOSPACED_FONT = $(shell { name=$(OUR_MONOSPACED_FONT);\
     {\
       fc-list | sed 's/: .*//' | grep -Fi "/$$name";\
-      for dir in /usr/share/fonts /usr/local/share/fonts /usr/*/lib/X11/fonts;\
+      for dir in ${dejavu_fonts}/share/fonts;\
       do [ -d $$dir ] && echo $$dir; done;\
-    } | xargs -I% find % -type f -iname $$name -print | head -n1; } 2>/dev/null)
+    } | xargs -I% find -L % -type f -iname $$name -print | head -n1; } 2>/dev/null)
   ifneq (,$(SYS_MONOSPACED_FONT))
     ifeq (,$(COPY_FONTS))
       DEFINES += -DMONOSPACED_FONT=\"$(SYS_MONOSPACED_FONT)\"