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-rw-r--r--Build/source/texk/dvipsk/ChangeLog4
-rw-r--r--Build/source/texk/dvipsk/dvips.c14
2 files changed, 18 insertions, 0 deletions
diff --git a/Build/source/texk/dvipsk/ChangeLog b/Build/source/texk/dvipsk/ChangeLog
index ca34c94b1f6..c2877de0933 100644
--- a/Build/source/texk/dvipsk/ChangeLog
+++ b/Build/source/texk/dvipsk/ChangeLog
@@ -1,3 +1,7 @@
+2013-03-18 Akira Kakuto <kakuto@fuk.kindai.ac.jp>
+
+ * dvips.c: Check if oname != iname.
+
2013-02-08 Peter Breitenlohner <peb@mppmu.mpg.de>
* Makefile.am (prologdir): Change texmf => texmf-dist.
diff --git a/Build/source/texk/dvipsk/dvips.c b/Build/source/texk/dvipsk/dvips.c
index 46f736e64b7..48a9a666ddb 100644
--- a/Build/source/texk/dvipsk/dvips.c
+++ b/Build/source/texk/dvipsk/dvips.c
@@ -1265,6 +1265,20 @@ default:
#endif
} /* dd(D_PATHS) */
#endif /* DEBUG */
+
+/*
+ * Check if oname != iname
+ */
+ if (iname && *iname && oname && *oname) {
+#ifdef DOSISH
+ if (strcasecmp (iname, oname) == 0) {
+#else
+ if (strcmp (iname, oname) == 0) {
+#endif
+ fprintf (stderr, "! Output name should be different from input name.\n");
+ exit (20);
+ }
+ }
/*
* Now we try to open the dvi file.
*/