Index: head/audio/fasttracker2/Makefile
===================================================================
--- head/audio/fasttracker2/Makefile	(revision 512506)
+++ head/audio/fasttracker2/Makefile	(revision 512507)
@@ -1,56 +1,57 @@
 # Created by: Emanuel Haupt <ehaupt@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	fasttracker2
 DISTVERSION=	0.1-b168
 CATEGORIES=	audio
 MASTER_SITES=	https://16-bits.org/ \
 		LOCAL/ehaupt
 DISTNAME=	ft2clone-${PORTVERSION:C/.*b/b/}-code
 
 MAINTAINER=	ehaupt@FreeBSD.org
 COMMENT=	Fasttracker II clone
 
 LICENSE=	BSD3CLAUSE CC-BY-NC-SA-4.0
 LICENSE_COMB=	multi
 
 LICENSE_FILE_BSD3CLAUSE=	${WRKSRC}/src/LICENSE.txt
 LICENSE_FILE_CC-BY-NC-SA-4.0=	${WRKSRC}/src/gfxdata/bmp/LICENSE.txt
 
 USES=		dos2unix iconv:wchar_t localbase:ldflags sdl zip
+USE_CSTD=	c99
 USE_SDL=	sdl2
 
 WRKSRC=		${WRKDIR}/ft2-clone-code
 
 DESKTOP_ENTRIES="FastTracker II" \
 		"${COMMENT}" \
 		"${PREFIX}/share/pixmaps/ft2-clone.ico" \
 		"fasttracker2" \
 		"" \
 		false
 
 PLIST_FILES=	bin/fasttracker2 share/pixmaps/ft2-clone.ico
 
 OPTIONS_DEFINE=	ALSA
 OPTIONS_DEFAULT=ALSA
 
 LDFLAGS+=	-lSDL2 -lpthread -lstdc++ -lm -liconv
 
 ALSA_LIB_DEPENDS=	libasound.so:audio/alsa-lib
 ALSA_CFLAGS+=	-D__LINUX_ALSA__
 ALSA_LDFLAGS+=	-lasound
 
 CFLAGS_i386+=	-msse2
 
 do-build:
 	${CC} ${CFLAGS} ${LDFLAGS} \
 		${WRKSRC}/src/rtmidi/*.cpp ${WRKSRC}/src/gfxdata/*.c ${WRKSRC}/src/*.c \
 		-o ${WRKSRC}/${PORTNAME}
 
 do-install:
 	@${MKDIR} ${STAGEDIR}${PREFIX}/share/pixmaps
 	${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_DATA} ${WRKSRC}/src/gfxdata/icon/ft2-clone.ico \
 		${STAGEDIR}${PREFIX}/share/pixmaps
 
 .include <bsd.port.mk>