Index: Mk/Uses/lib32.mk
===================================================================
--- /dev/null
+++ Mk/Uses/lib32.mk
@@ -0,0 +1,91 @@
+# $FreeBSD$
+#
+# Create a 'lib32-' companion port.
+#
+# For ports need to ship 32-bit components, or who have dependant's who need
+# 32-bit libraries, this USES adds a FLAVOR that will compile this port
+# targetting a 32-bit architecture.
+#
+# To use this USES a port most not define FLAVORS or PKGNAMEPREFIX and MUST
+# define USE_LDCONFIG.  All files under ${PREFIX}/lib will then be compiled
+# targetting 32-bit and moved to ${PREFIX}/lib32.
+#
+# All ports with USES=lib32 can be concurrently installed with both the
+# native and 32-bit packages (which gets a 'lib32-' prefix).
+#
+# Usage:
+#   USES=lib32
+#
+# Variables set by lib32:
+#
+#   LIBDIR	The path to the library directory
+#   			${PREFIX}/lib; or
+#   			${PREFIX}/lib32
+
+.if !defined(_LIB32_MK_INCLUDED)
+_LIB32_MK_INCLUDED=	lib32.mk
+_USES_POST+=		lib32
+
+LIBDIR=		${PREFIX}/lib
+
+. for var in FLAVORS PKGNAMEPREFIX
+.  if defined(${var})
+#ERROR+=		"USES=lib32: not compatible with ${var}"
+.  endif
+. endfor
+
+. if !defined(USE_LDCONFIG)
+ERROR+=		"USES=lib32: USE_LDCONFIG must be defined"
+. endif
+. if ${USE_LDCONFIG} != yes && "${USE_LDCONFIG:N${LIBDIR}}" != ""
+ERROR+=		"USES=lib32: USE_LDCONFIG must only define libraries under $${PREFIX}/lib"
+. endif
+
+. if ${ARCH} == amd64
+FLAVORS=	default lib32
+. endif
+
+.endif // _LIB32_MK_INCLUDED
+
+.if defined(_POSTMKINCLUDED) && !defined(_LIB32_MK_POST_INCLUDED)
+_LIB32_MK_POST_INCLUDED=	yes
+
+. if ${FLAVOR} == lib32
+
+LIBDIR=		${PREFIX}/lib32
+
+PKGNAMEPREFIX=	lib32-
+
+.  if defined(LIB_DEPENDS)
+LIB32_DEPENDS:=	${LIB_DEPENDS:C|^|${LOCALBASE}/lib32/|g:C/$$/@lib32/g}
+BUILD_DEPENDS+=	${LIB32_DEPENDS}
+RUN_DEPENDS+=	${LIB32_DEPENDS}
+.  undef LIB_DEPENDS
+.  endif
+
+.  for flags in CFLAGS CPPFLAGS
+${flags}:=	${CFLAGS:S|${LOCALBASE}/lib|${LOCALBASE}/lib32|g} -m32
+.  endfor
+
+.  if ${USE_LDCONFIG} == yes
+USE_LDCONFIG32=	${LIBDIR}
+.  else
+USE_LDCONFIG32:=${USE_LDCONFIG:S|${PREFIX}/lib/|${LIBDIR}/}
+.  endif
+
+.  if defined(HAS_CONFIGURE) || defined(GNU_CONFIGURE)
+CONFIGURE_ARGS:=${CONFIGURE_ARGS:S|${LOCALBASE}/lib|${LOCALBASE}/lib32|} --libdir=${LIBDIR}
+.  endif
+
+_USES_stage+=	935:post-plist-lib32
+
+LIB32_PATTERN=	(^lib\/|^@post(un)?exec .* ldconfig|${PREFIX:S|/|\/|g}\/share\/licenses|${PREFIX:S|/|\/|g}\/libdata\/ldconfig32)
+
+post-plist-lib32:
+	${SED} -E -e '/${LIB32_PATTERN}/d' -e '/^@/d' -e 's|^|${STAGEDIR}${PREFIX}/|g' ${TMPPLIST} | ${XARGS} ${RM}
+	${REINPLACE_CMD} -E -e '/${LIB32_PATTERN}/!d' -e 's|^lib/|lib32/|g' ${TMPPLIST}
+
+. undef USE_LDCONFIG
+
+. endif
+.endif // _LIB32_MK_POST_INCLUDED
Index: graphics/png/Makefile
===================================================================
--- graphics/png/Makefile
+++ graphics/png/Makefile
@@ -18,7 +18,7 @@
 LICENSE_FILE=	${WRKSRC}/LICENSE
 LICENSE_PERMS=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 
-USES=		cpe libtool tar:xz
+USES=		cpe lib32 libtool tar:xz
 CPE_PRODUCT=	libpng
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-pkgconfigdir=${PREFIX}/libdata/pkgconfig
Index: print/freetype2/Makefile
===================================================================
--- print/freetype2/Makefile
+++ print/freetype2/Makefile
@@ -22,7 +22,7 @@
 LICENSE_FILE_GPLv2+ =	${WRKSRC}/docs/GPLv2.TXT
 LICENSE_PERMS_FTL=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 
-USES=		cpe gmake libtool tar:bzip2
+USES=		cpe gmake lib32 libtool tar:bzip2
 MAKE_ENV=	TOP=""
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
@@ -123,7 +123,7 @@
 		${MAKE_CMD} ${MAKE_FLAGS} ${MAKEFILE} ${MAKE_ARGS} setup)
 
 post-install:
-	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libfreetype.so.*
+	@${STRIP_CMD} ${STAGEDIR}${LIBDIR}/libfreetype.so.*
 
 post-install-DOCS-on:
 	(cd ${WRKSRC}/docs && ${COPYTREE_SHARE} "${PORTDOCS}" ${STAGEDIR}${DOCSDIR})
Index: textproc/expat2/Makefile
===================================================================
--- textproc/expat2/Makefile
+++ textproc/expat2/Makefile
@@ -13,7 +13,7 @@
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 GNU_CONFIGURE=	yes
-USES=		libtool pathfix tar:bz2
+USES=		lib32 libtool pathfix tar:bz2
 USE_LDCONFIG=	yes
 INSTALL_TARGET=	install-strip
 
Index: x11-fonts/fontconfig/Makefile
===================================================================
--- x11-fonts/fontconfig/Makefile
+++ x11-fonts/fontconfig/Makefile
@@ -14,7 +14,9 @@
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		gperf tar:bzip2
+USES=		gperf lib32 tar:bzip2
+
+USE_LDCONFIG=	yes
 
 .if !defined(REFERENCE_PORT)