At first glance it is not clear which version is used here. I guess this is much clearer to read and overview. Homepage says:
" The id3lib library is open-source software, licensed under the GNU Library General Public License (LGPL)." so I change the license comment. Index: Makefile =================================================================== RCS file: /cvs/ports/audio/id3lib/Makefile,v retrieving revision 1.29 diff -u -p -u -p -r1.29 Makefile --- Makefile 12 Jul 2019 20:43:34 -0000 1.29 +++ Makefile 7 Nov 2019 20:40:27 -0000 @@ -2,16 +2,16 @@ COMMENT= library for manipulating ID3v1 and ID3v2 tags -VERSION= 3.8 -DISTNAME= id3lib-${VERSION}.3 +DISTNAME= id3lib-3.8.3 REVISION = 9 -CATEGORIES= audio +CATEGORIES= audio + SHARED_LIBS += id3 4.0 # .3.8 HOMEPAGE= http://id3lib.sourceforge.net/ -# GPL -PERMIT_PACKAGE= Yes +# LGPLv3 +PERMIT_PACKAGE= Yes WANTLIB= c m ${COMPILER_LIBCXX} z