Update to 0.5.6. From the changelog:

- fixed compilation problem, bug #2785683
- fixed critical bug with overlap splitpoints not working (feature
    #1530782 => bug)
- fixed critical bug with mp3 stdin (& framemode)
- fixed bug #2786300 in plugins compilation (added -lm)
- Xing header is now written even if SPLT_NO_TAGS option is used
- added SPLT_OPT_XING option to not write Xing header
- fixed bug with custom tags and multiple usages of @o
- fixed bug with stdin & id3v2 & xing
- fixed a small bug with genre in custom tags
- fixed some warning messages & added some more
- fixed dewrap error message
- fixed dewrap bug to not attempt to create output directories when
    '-d' option is used
- fixed minor bug #2790952 : time mode creating an empty file (at the end)
- fixed issue with CUE file not being imported correctly : \r and
    \n problem (bug #2778717)
- fixed bug #2691576 - CUE file seg fault if no artist
- fixed bug #2520183 : wrong size in snprintf call
- fixed bug with ID3v1 and '@N' (was 1,3,5,... instead of 1,2,3,...)
- fixed time split with '0.0' was infinite looping
- fixed empty output format '' seg fault
- added options @m,@M,@s,@S,@H,@h + no @h or @H in output filenames
    if hundreths are 0
- added --with-(mad|id3)(-libraries|-includes)?, --disable-[mad|id3]test
    configure options
- added overlapping option of split files (feature request #1530782)

audio/libmp3splt/Makefile

@@ -1,13 +1,14 @@
-# $NetBSD: Makefile,v 1.3 2009/02/12 21:35:08 schmonz Exp $
+# $NetBSD: Makefile,v 1.4 2009/07/25 14:58:00 schmonz Exp $
 #
 
-DISTNAME=	libmp3splt-0.5.4
+DISTNAME=	libmp3splt-0.5.6
 CATEGORIES=	audio
 MASTER_SITES=	${MASTER_SITE_SOURCEFORGE:=mp3splt/}
 
 MAINTAINER=	schmonz@NetBSD.org
 HOMEPAGE=	http://mp3splt.sourceforge.net/
 COMMENT=	Utility library for MP3 splitting/manipulation
+LICENSE=	gnu-gpl-v2
 
 PKG_DESTDIR_SUPPORT=	user-destdir
 

audio/libmp3splt/PLIST

@@ -1,5 +1,6 @@
-@comment $NetBSD: PLIST,v 1.3 2009/06/14 17:32:15 joerg Exp $
+@comment $NetBSD: PLIST,v 1.4 2009/07/25 14:58:00 schmonz Exp $
 include/libmp3splt/mp3splt.h
 lib/libmp3splt.la
 lib/libmp3splt/libsplt_mp3.la
 lib/libmp3splt/libsplt_ogg.la
+share/aclocal/mp3splt.m4

audio/libmp3splt/distinfo

@@ -1,5 +1,5 @@
-$NetBSD: distinfo,v 1.3 2009/02/12 21:35:08 schmonz Exp $
+$NetBSD: distinfo,v 1.4 2009/07/25 14:58:00 schmonz Exp $
 
-SHA1 (libmp3splt-0.5.4.tar.gz) = f666e5f19daf40bdd70ea4c88f5a74260b865cd9
-RMD160 (libmp3splt-0.5.4.tar.gz) = e999b5881e0efb154862741df37c9b694c9ef241
-Size (libmp3splt-0.5.4.tar.gz) = 462620 bytes
+SHA1 (libmp3splt-0.5.6.tar.gz) = 769ab3fbca5c69f2518f2067da57104246ecadb4
+RMD160 (libmp3splt-0.5.6.tar.gz) = 30a783f4c02cc7a6784e5b0afbeef4b9d4a785fe
+Size (libmp3splt-0.5.6.tar.gz) = 471564 bytes