Disable SVE support for now. It's not built anyway as arm_neon_sve_bridge.h
is missing but when enabled it runs into a build issue. Looking into the
error I think the issue is with svt-av1. I opened a bug report either way.


Index: Makefile
===================================================================
RCS file: /cvs/ports/multimedia/svt-av1/Makefile,v
retrieving revision 1.19
diff -u -p -u -p -r1.19 Makefile
--- Makefile	28 Jan 2025 11:22:03 -0000	1.19
+++ Makefile	30 Mar 2025 04:58:38 -0000
@@ -30,6 +30,12 @@ MODULES=	devel/cmake
 BUILD_DEPENDS+=	devel/nasm
 .endif
 
+# LLVM ERROR: Invalid size request on a scalable vector.
+# with 16, 18, 19
+.if ${MACHINE_ARCH} == "aarch64"
+CONFIGURE_ARGS+=-DENABLE_SVE=OFF
+.endif
+
 NO_TEST=	Yes
 
 .include <bsd.port.mk>