From a48e2f9d429ffd96f70c97f21fa8d896fb5d2afa Mon Sep 17 00:00:00 2001
From: Michael Uleysky <uleysky@poi.dvo.ru>
Date: Wed, 14 Sep 2016 12:55:04 +1000
Subject: [PATCH] Gmt module: Fix compilation on Ubuntu.

---
 modules/gmt/modgmt_gsfuncs.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/modules/gmt/modgmt_gsfuncs.h b/modules/gmt/modgmt_gsfuncs.h
index 412f20f..e1231a9 100644
--- a/modules/gmt/modgmt_gsfuncs.h
+++ b/modules/gmt/modgmt_gsfuncs.h
@@ -4,6 +4,10 @@
 #include <ghostscript/iapi.h>
 #include <ghostscript/ierrors.h>
 
+#ifndef e_Quit
+#define e_Quit (-101)
+#endif
+
 struct gs_abilities_struct
 {
  bool havepngmono,havepngmonod,havepng16,havepng256,havepnggray,havepng16m;