three more [df]port tweaks: x11-toolkits/scintilla, x11-wm/xfce, and x11/rxvt

[Chris Pressey]

In summary:

xfce: used an 'extern int errno'.

rxvt: used 'extern int errno' in its *configure* script, which made it
kind of painful to track down.

scintilla: wasn't picking up libiconv for some reason.  Added -liconv to
the compilation rules, and USE_ICONV to its Makefile.

-Chris
--- configure.orig	2005-05-17 22:17:44.000000000 -0700
+++ configure	2005-05-17 22:18:14.000000000 -0700
@@ -4645,7 +4645,6 @@
     int pty, checkerror;
     FILE *a, *f=fopen("conftestval", "w");
     struct stat statbuf;
-    extern int errno;
 
     if (!f) exit(1);
 /* presume that S_IXOTH is required for people to access devices */
--- xfwm/module.c.orig	2005-05-17 16:26:43.000000000 -0700
+++ xfwm/module.c	2005-05-17 16:27:08.000000000 -0700
@@ -670,7 +670,6 @@
   char *dptr;
   struct queue_buff_struct *d;
   int a;
-  extern int errno;
 
   if ((pipeOn[module] <= 0) || (pipeQueue[module] == NULL))
     return;

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