Fixing USE_GCC for LibreOffice on i386

[Kevin Zheng]

Hello again,

Attached is a patch for my proposed solution. It's nothing profound, but
somebody should check to be sure that I did it right. You can apply the
patch by using `svn patch <file>`.

If somebody decides to commit this patch, it should close ports/176967
and ports/178041. Maybe even ports/176893.

Thanks,
Kevin Zheng
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Index: Makefile
===================================================================
--- Makefile	(revision 317964)
+++ Makefile	(working copy)
@@ -343,7 +343,7 @@
 
 .include <bsd.port.pre.mk>
 
-.if defined(WITH_GCC)
+.if defined(WITH_GCC) || ${ARCH} == "i386"
 USE_GCC=	4.6+
 CONFIGURE_ENV+=	CXXCPP="${CPP}"
 .else