diff --git a/comms/sdr++/Makefile b/comms/sdr++/Makefile
index 1be3940592d8..ed8facd8a9d9 100644
--- a/comms/sdr++/Makefile
+++ b/comms/sdr++/Makefile
@@ -1,57 +1,59 @@
 PORTNAME=	sdr++
 DISTVERSION=	1.0.4
 PORTREVISION=	5
 CATEGORIES=	comms hamradio
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Cross-platform SDR software
 WWW=		https://github.com/AlexandreRouma/SDRPlusPlus
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/license
 
+BROKEN_FreeBSD_15=	compilation fails with clang-19, see https://github.com/AlexandreRouma/SDRPlusPlus/issues/1509
+
 LIB_DEPENDS=	libad9361.so:misc/libad9361-iio \
 		libairspy.so:comms/airspy \
 		libairspyhf.so:comms/airspyhf \
 		libfftw3f.so:math/fftw3-float \
 		libglfw.so:graphics/glfw \
 		libhackrf.so:comms/hackrf \
 		libiio.so:misc/libiio \
 		librtlsdr.so:comms/rtl-sdr \
 		libSoapySDR.so:misc/soapysdr \
 		libvolk.so:devel/volk
 
 USES=		cmake compiler:c++17-lang gl pkgconfig xorg
 USE_GL=		gl glew glu opengl
 USE_XORG=	x11
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	AlexandreRouma
 GH_PROJECT=	SDRPlusPlus
 
 PORTSCOUT=	limit:^.*\.[0-9]\..*$$ # prevent tags like 'nightly'
 
 OPTIONS_MULTI=			AUDIO_BACKEND
 OPTIONS_MULTI_AUDIO_BACKEND=	PORTAUDIO RTAUDIO
 OPTIONS_DEFAULT=		PORTAUDIO # RTAUDIO
 OPTIONS_SUB=			yes
 
 AUDIO_BACKEND_DESC=		Audio backend
 
 PORTAUDIO_CMAKE_BOOL=		OPT_BUILD_AUDIO_SINK
 PORTAUDIO_LIB_DEPENDS=		libportaudio.so:audio/portaudio
 
 RTAUDIO_DESC=			RtAudio support
 RTAUDIO_CMAKE_BOOL=		OPT_BUILD_AUDIO_SINK
 RTAUDIO_LIB_DEPENDS=		librtaudio.so:audio/rtaudio
 RTAUDIO_BROKEN=			see https://github.com/AlexandreRouma/SDRPlusPlus/issues/1149
 
 .include <bsd.port.pre.mk>
 
 .if ${ARCH} == "amd64" || ${ARCH} == "i386"
-PLIST_SUB+=     SSE=""
+PLIST_SUB+=	SSE=""
 .else
-PLIST_SUB+=     SSE="@comment "
+PLIST_SUB+=	SSE="@comment "
 .endif
 
 .include <bsd.port.post.mk>