--- ./emulators/virtualbox-ose/Makefile.ORIG	2015-03-13 20:42:31.727020872 +0100
+++ ./emulators/virtualbox-ose/Makefile	2015-03-14 10:58:00.722400532 +0100
@@ -22,7 +22,8 @@
 		xsltproc:${PORTSDIR}/textproc/libxslt \
 		kmk:${PORTSDIR}/devel/kBuild \
 		gtar:${PORTSDIR}/archivers/gtar \
-		cdrecord:${PORTSDIR}/sysutils/cdrtools
+		cdrecord:${PORTSDIR}/sysutils/cdrtools \
+		convert:${PORTSDIR}/graphics/ImageMagick
 LIB_DEPENDS=	libpng.so:${PORTSDIR}/graphics/png \
 		libxslt.so:${PORTSDIR}/textproc/libxslt \
 		libcurl.so:${PORTSDIR}/ftp/curl
@@ -262,6 +263,7 @@
 	@${REINPLACE_CMD} -e 's|/usr/local/lib/virtualbox|${VBOX_DIR}|' \
 	    -e 's|/usr/local|${PREFIX}|' \
 	    ${WRKSRC}/src/VBox/Installer/freebsd/VBox.sh
+	cd ${WRKSRC}/src/VBox && ${FIND} . -type f -name '*.png' -exec ${SH} ${FILESDIR}/profile-strip {} +
 
 do-build:
 	cd ${WRKSRC} && \
--- ./emulators/virtualbox-ose/files/profile-strip.ORIG	2015-03-14 10:46:15.016482906 +0100
+++ ./emulators/virtualbox-ose/files/profile-strip	2015-03-14 10:51:16.152422569 +0100
@@ -0,0 +1,12 @@
+#! /bin/sh
+
+for i
+do
+	echo "profile-strip: processing ${i}..."
+	if ! mv ${i} ${i}.bak
+	then
+		echo "error: could not backup ${i} - not modified." >&2
+		continue
+	fi
+	/usr/local/bin/convert -strip ${i}.bak ${i}
+done