devel/cargo-leptos: fix build on powerpc

LLVM ERROR: out of memory

devel/cargo-leptos/Makefile

@@ -379,6 +379,12 @@ OPENSSLLIB=	/usr/lib
 
 PLIST_FILES=	bin/${PORTNAME}
 
+.include <bsd.port.options.mk>
+
+.if ${ARCH} == powerpc
+LTO_UNSAFE=	yes
+.endif
+
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/${PORTNAME}