games/openclonk: Fix link on 14-CURRENT i386

Fix build on 14-CURRENT i386 by disabling dynamic relocation checks with
lld 15.

While here, since this port is BROKEN_powerpc64, remove the old powerpc
build flags.

PR:		271500
MFH:		2023Q2

games/openclonk/Makefile

@@ -27,25 +27,22 @@ LIB_DEPENDS=	libalut.so:audio/freealut \
 WRKSRC=		${WRKDIR}/openclonk-release-${PORTVERSION}-src
 
 # make install has parallel issues with ninja
-USES=		cmake:noninja desktop-file-utils gl gnome jpeg openal \
+USES=		cmake:noninja compiler:c++14-lang desktop-file-utils gl gnome jpeg openal \
 		pkgconfig sdl tar:bzip2 xorg
 USE_GL=		gl glew glu
 USE_SDL=	sdl2
 USE_XORG=	x11 xpm
 CMAKE_ARGS=	-DAudio_TK:STRING="OpenAL"
 LDFLAGS_i386=	-Wl,-znotext
 
-.include <bsd.port.options.mk>
+.include <bsd.port.pre.mk>
 
-.if ${ARCH} == powerpc64le
-CFLAGS+=	-DNO_WARN_X86_INTRINSICS
-USES+=		compiler:gcc-c++11-lib
-.else
-USES+=		compiler:c++14-lang
+.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 150
+LDFLAGS_i386+=  -Wl,--no-check-dynamic-relocations
 .endif
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|DESTINATION games|DESTINATION bin|' \
 		-e 's|share/games|share|' ${WRKSRC}/CMakeLists.txt
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>