dthelp: compiler warning and coverity warning fixes

cde/programs/dthelp/parser/pass1/helptag/help.c

@@ -24,6 +24,8 @@
 /*   Copyright (c) 1986, 1987, 1988, 1989 Hewlett-Packard Co. */
 /* Miscellaneous Procedures for HP Tag/TeX translator */
 
+#include <stdint.h>
+
 #include "userinc.h"
 #include "globdec.h"
 
@@ -306,7 +308,7 @@ while (TRUE)
     node[n] = current->next;
     if (! id[n])
 	{
-	if ((int) current->data >= 0)
+	if ((intptr_t) current->data >= 0)
 	    m_err1("No glossary definition for %s", id);
 	current = current->next;
 	while (! current)
@@ -1612,6 +1614,8 @@ else
     }
 
 _DtLcxCloseDb(&myDb);
+free(charset);
+free(lang);
 }
 
 
@@ -2192,13 +2196,13 @@ if (vgloss(gloss) == GLOSS)
 	*(termp-1) = M_EOS;
 	}
 
-    idn = (int) m_lookfortrie(base ? base : dterm, &gtree);
+    idn = (intptr_t) m_lookfortrie(base ? base : dterm, &gtree);
     if (idn < 0)
 	idn = -idn;
     if (!idn)
 	{
 	idn = NextId();
-	m_ntrtrie(base ? base : dterm, &gtree, (void *) idn);
+	m_ntrtrie(base ? base : dterm, &gtree, (void *) (intptr_t) idn);
 	}
     }
 

cde/programs/dthelp/parser/pass1/helptag/xref.c

@@ -155,7 +155,10 @@ strcpy(helpext, ".xrh");
 tex = fopen(helpbase, "w");
 fprintf(tex, "\\gobble\001%s\002%%\n", m_signon);
 fputs("% Generated Cross-Reference Macros (for a particular document)\n", tex);
-if (! xtree.data) return;
+if (! xtree.data) {
+	fclose(tex);
+	return;
+}
 
 n = 0;
 current = xtree.data;