abs(unsigned) doesn't make much sense.

clang catches an actual bug in jakemsr's code!

comms/gpsk31/Makefile

@@ -1,9 +1,9 @@
-# $OpenBSD: Makefile,v 1.23 2017/04/10 11:45:24 sthen Exp $
+# $OpenBSD: Makefile,v 1.24 2017/05/02 16:47:32 espie Exp $
 
 COMMENT=	gtk PSK31 send and receive
 
 DISTNAME=	gpsk31-0.3
-REVISION=	12
+REVISION=	13
 CATEGORIES=    	comms hamradio
 
 HOMEPAGE=	http://www.qsl.net/pg4i/linux/gpsk31.html

comms/gpsk31/patches/patch-src_server-main_C

@@ -1,6 +1,7 @@
-$OpenBSD: patch-src_server-main_C,v 1.2 2010/07/01 01:57:33 jakemsr Exp $
---- src/server-main.C.orig	Wed Jun 30 17:19:24 2010
-+++ src/server-main.C	Wed Jun 30 17:35:40 2010
+$OpenBSD: patch-src_server-main_C,v 1.3 2017/05/02 16:47:32 espie Exp $
+Index: src/server-main.C
+--- src/server-main.C.orig
++++ src/server-main.C
 @@ -20,21 +20,14 @@
   */
  
@@ -345,7 +346,7 @@ $OpenBSD: patch-src_server-main_C,v 1.2 2010/07/01 01:57:33 jakemsr Exp $
 -   // Check if the device is operating in full duplex mode
 -   if( ioctl(audiofd, SNDCTL_DSP_GETCAPS, &val)<0 ) 
 -      perror("Warning: GETCAPS on audio device failed");
-+   if (abs(par.rate - speed) < speed * 1.03)
++   if (abs(int(par.rate) - int(speed)) < speed * 1.03)
 +   {
 +      fprintf (stderr, "init_audio: using %d sample rate\n", speed);
 +   }