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From f88d2c259242936bbc3c74bf43107626c0f5ad61 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
Date: Fri, 13 Jan 2017 09:56:14 +0000
Subject: [PATCH] state what lib is printing the error

and where it originally came from

so its clear where

"undefined -21" came from in cases like
https://bugzilla.gnome.org/show_bug.cgi?id=678500

https://bugs.freedesktop.org/show_bug.cgi?id=99395
---
 libspectre/spectre-gs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libspectre/spectre-gs.c b/libspectre/spectre-gs.c
index b701942..414175a 100644
--- a/libspectre/spectre-gs.c
+++ b/libspectre/spectre-gs.c
@@ -55,12 +55,12 @@ critic_error_code (int code)
 	if (code <= -100) {
 		switch (code) {
 			case e_Fatal:
-				fprintf (stderr, "fatal internal error %d", code);
+				fprintf (stderr, "(libspectre) ghostscript reports: fatal internal error %d", code);
 				return TRUE;
 				break;
 
 			case e_ExecStackUnderflow:
-				fprintf (stderr, "stack overflow %d", code);
+				fprintf (stderr, "(libspectre) ghostscript reports: stack overflow %d", code);
 				return TRUE;
 				break;
 
@@ -73,7 +73,7 @@ critic_error_code (int code)
 		int x = (-1) * code;
 
 		if (x < (int) (sizeof (errors) / sizeof (const char*))) {
-			fprintf (stderr, "%s %d\n", errors[x], code);
+			fprintf (stderr, "(libspectre) ghostscript reports: %s %d\n", errors[x], code);
 		}
 		return TRUE;
 	}
-- 
2.9.3