Fix build on powerpc.

PR:		ports/146042
Submitted by:	Andreas Tobler

graphics/libvisual/Makefile

@@ -27,8 +27,6 @@ CONFIGURE_ENV=	CFLAGS="${CFLAGS} -I${LOCALBASE}/include ${PTHREAD_CFLAGS}" \
 
 .if ${ARCH} == "i386" || ${ARCH} == "amd64"
 CFLAGS+=	-mmmx
-.elif ${ARCH} == "powerpc"
-BROKEN=		Does not compile on powerpc
 .endif
 
 post-patch:

graphics/libvisual/files/patch-libvisual-lv_cpu.c

@@ -0,0 +1,10 @@
+--- libvisual/lv_cpu.c.orig	2010-04-25 17:13:26.000000000 +0200
++++ libvisual/lv_cpu.c	2010-04-25 17:11:29.000000000 +0200
+@@ -423,7 +423,7 @@
+ #endif
+ #endif /* VISUAL_ARCH_X86 */
+ 
+-#if VISUAL_ARCH_POWERPC
++#if defined(VISUAL_ARCH_POWERPC)
+ 	check_os_altivec_support ();
+ #endif /* VISUAL_ARCH_POWERPC */