From 9ff2fc3324503a95f1220521b8d063fca15a5db3 Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@debian.org>
Date: Sun, 19 May 2013 20:58:42 +0100
Subject: [PATCH] Allow system libjpeg to be in a non-standard location

It doesn't have pkg-config metadata (at least on Debian), so if the
user doesn't override it, assume normal system paths.
---
 Makefile | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 35c1fc96..416d1f17 100644
--- a/Makefile
+++ b/Makefile
@@ -1038,7 +1038,13 @@ ifeq ($(USE_INTERNAL_JPEG),1)
   BASE_CFLAGS += -DUSE_INTERNAL_JPEG
   BASE_CFLAGS += -I$(JPDIR)
 else
-  RENDERER_LIBS += -ljpeg
+  # libjpeg doesn't have pkg-config yet, but let users override with
+  # "make JPEG_CFLAGS=-I/opt/jpeg/include JPEG_LIBS='-L/opt/jpeg/lib -ljpeg'"
+  # if they need to
+  JPEG_CFLAGS ?=
+  JPEG_LIBS ?= -ljpeg
+  BASE_CFLAGS += $(JPEG_CFLAGS)
+  RENDERER_LIBS += $(JPEG_LIBS)
 endif
 
 ifeq ($(USE_FREETYPE),1)