X-Git-Url: http://ncurses.scripts.mit.edu/?a=blobdiff_plain;ds=sidebyside;f=ncurses%2Ftinfo%2Fcomp_parse.c;h=2bc9485342742708c0452ea90076b9a83837a189;hb=3d46d7e9d3e210417f34acf3b469378558398d07;hp=82c3fa2c950a05124b1617058d2bed752fc53d91;hpb=02f1dee48fe8af6ce054388fba739aa4f975004e;p=ncurses.git

diff --git a/ncurses/tinfo/comp_parse.c b/ncurses/tinfo/comp_parse.c
index 82c3fa2c..2bc94853 100644
--- a/ncurses/tinfo/comp_parse.c
+++ b/ncurses/tinfo/comp_parse.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2018,2019 Free Software Foundation, Inc.              *
+ * Copyright 2018-2020,2021 Thomas E. Dickey                                *
+ * Copyright 1998-2016,2017 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -47,10 +48,10 @@
 
 #include <tic.h>
 
-MODULE_ID("$Id: comp_parse.c,v 1.108 2019/12/14 22:34:35 tom Exp $")
+MODULE_ID("$Id: comp_parse.c,v 1.113 2021/05/08 15:03:42 tom Exp $")
 
 static void sanity_check2(TERMTYPE2 *, bool);
-NCURSES_IMPEXP void NCURSES_API(*_nc_check_termtype2) (TERMTYPE2 *, bool) = sanity_check2;
+NCURSES_IMPEXP void (NCURSES_API *_nc_check_termtype2) (TERMTYPE2 *, bool) = sanity_check2;
 
 static void fixup_acsc(TERMTYPE2 *, int);
 
@@ -391,7 +392,7 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
 {
     ENTRY *qp, *rp, *lastread = 0;
     bool keepgoing;
-    unsigned i;
+    unsigned i, j;
     int unresolved, total_unresolved, multiples;
 
     DEBUG(2, ("RESOLUTION BEGINNING"));
@@ -453,6 +454,16 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
 
 		    qp->uses[i].link = rp;
 		    foundit = TRUE;
+
+		    /* verify that there are no earlier uses */
+		    for (j = 0; j < i; ++j) {
+			if (qp->uses[j].link != NULL
+			    && !strcmp(qp->uses[j].link->tterm.term_names,
+				       rp->tterm.term_names)) {
+			    _nc_warning("duplicate use=%s", lookfor);
+			    break;
+			}
+		    }
 		}
 	    }
 
@@ -474,6 +485,16 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
 
 		    qp->uses[i].link = rp;
 		    foundit = TRUE;
+
+		    /* verify that there are no earlier uses */
+		    for (j = 0; j < i; ++j) {
+			if (qp->uses[j].link != NULL
+			    && !strcmp(qp->uses[j].link->tterm.term_names,
+				       rp->tterm.term_names)) {
+			    _nc_warning("duplicate use=%s", lookfor);
+			    break;
+			}
+		    }
 		}
 	    }