From 1b1f2b4b52f9791a70533f9813b42b5aa3ff1ce2 Mon Sep 17 00:00:00 2001
From: Alexander Larsson <alexl@redhat.com>
Date: Tue, 4 Jun 2013 10:39:32 +0200
Subject: [PATCH] configure: Add buildtime check for
 cairo_surface_set_device_scale

We will need this for the window scale support, but its not yet
in a stable cairo release (or even on a master yet), so we make
this optional.
---
 configure.ac | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/configure.ac b/configure.ac
index 1bdbf1b702..6d825ba31e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1263,6 +1263,17 @@ else
         LIBS="$gtk_save_LIBS"
 fi
 
+# Check for cairo_set_device_scale, as we don't want to depend hard on
+# this until there is a stable release with it
+CAIRO_CFLAGS=`$PKG_CONFIG --cflags cairo`
+CAIRO_LIBS=`$PKG_CONFIG --libs cairo`
+CFLAGS="$CFLAGS $CAIRO_CFLAGS"
+gtk_save_LIBS="$LIBS"
+LIBS="$CAIRO_LIBS $LIBS"
+AC_CHECK_FUNCS(cairo_surface_set_device_scale)
+LIBS="$gtk_save_LIBS"
+
+
 CFLAGS="$saved_cflags"
 LDFLAGS="$saved_ldflags"
 
-- 
2.30.2