games/lwjgl: port to powerpc

Use BFD due to:
[apply] ld: error: relocation R_PPC_ADDR16_LO cannot be used against symbol '__stack_chk_guard'; recompile with -fPIC

games/lwjgl/Makefile

@@ -9,7 +9,7 @@ WWW=		https://legacy.lwjgl.org
 
 LICENSE=	BSD3CLAUSE
 
-ONLY_FOR_ARCHS=	aarch64 amd64 i386 powerpc64 powerpc64le
+ONLY_FOR_ARCHS=	aarch64 amd64 i386 powerpc powerpc64 powerpc64le
 
 BUILD_DEPENDS=	${JAVAJARDIR}/jutils/jutils.jar:games/jutils \
 		${JAVAJARDIR}/jinput/jinput.jar:games/jinput
@@ -36,7 +36,7 @@ PLIST_FILES=	${JAVAJARDIR}/${PORTNAME}/${PORTNAME}.jar \
 
 .include <bsd.port.pre.mk>
 
-.if ${ARCH} == i386
+.if ${ARCH} == i386 || ${ARCH} == powerpc
 PLIST_FILES+=	lib/${PORTNAME}/lib${PORTNAME}.so
 .endif
 
@@ -48,6 +48,11 @@ PLIST_FILES+=	lib/${PORTNAME}/lib${PORTNAME}64.so
 MAKE_ARGS+=	-Dbuild.64bit.only=1
 .endif
 
+.if ${ARCH} == powerpc
+LLD_UNSAFE=	yes
+MAKE_ARGS+=	-Dbuild.32bit.only=1
+.endif
+
 post-patch:
 	@${REINPLACE_CMD} -e 's|PREFIX|${PREFIX}|g' \
 		-e '/executable/s/cc/${CC}/g' \
@@ -61,6 +66,10 @@ post-patch:
 .elif ${ARCH} == aarch64
 	@${REINPLACE_CMD} -e 's|amd64|aarch64|g' \
 		${WRKSRC}/platform_build/bsd_ant/build.xml
+.elif ${ARCH} == powerpc
+	@${REINPLACE_CMD} -e 's|i386|ppc|g' \
+		-e '/linker_flags32/s/-shared/-shared -fuse-ld=bfd/g' \
+		${WRKSRC}/platform_build/bsd_ant/build.xml
 .endif
 
 do-install:
@@ -70,7 +79,7 @@ do-install:
 		${STAGEDIR}${JAVAJARDIR}/${PORTNAME}
 .endfor
 	@${MKDIR} ${STAGEDIR}${PREFIX}/lib/${PORTNAME}
-.if ${ARCH} == i386
+.if ${ARCH} == i386 || ${ARCH} == powerpc
 	${INSTALL_DATA} ${WRKSRC}/libs/freebsd/lib${PORTNAME}.so \
 		${STAGEDIR}${PREFIX}/lib/${PORTNAME}
 .endif