Based on https://build.opensuse.org/package/view_file?file=tango-icon-theme-rsvg-2_35_2.patch&package=tango-icon-theme&project=openSUSE%3A12.2&rev=faf71bf8278d5df6ec8a31726e5b8542

diff -ru -x '*~' tango-icon-theme-0.8.90/configure tango-icon-theme-0.8.90-new/configure
--- tango-icon-theme-0.8.90/configure	2009-02-26 04:08:00.000000000 +0100
+++ tango-icon-theme-0.8.90-new/configure	2013-08-15 17:54:24.167065399 +0200
@@ -6554,7 +6554,7 @@
   enable_large_bitmaps=no
 fi
    if test "x$enable_large_bitmaps" = "xyes"; then
-      svgconvert_prog="rsvg"
+      svgconvert_prog="rsvg-convert"
    else
       svgconvert_prog="ksvgtopng"
    fi
diff -ru -x '*~' tango-icon-theme-0.8.90/svg2png.sh.in tango-icon-theme-0.8.90-new/svg2png.sh.in
--- tango-icon-theme-0.8.90/svg2png.sh.in	2007-02-16 21:04:29.000000000 +0100
+++ tango-icon-theme-0.8.90-new/svg2png.sh.in	2013-08-15 17:54:08.275084837 +0200
@@ -9,12 +9,14 @@
 
 ICONFILE=`basename ${3}`
 ICONNAME=`echo ${ICONFILE} | sed -e "s/.svg//"`
-if test `basename $SVGCONVERT` = "rsvg"; then
+if test `basename $SVGCONVERT` = "rsvg-convert"; then
     OPTIONS="-w ${1} -h ${1}"
+    OUTPUT="-o"
 else
     OPTIONS="${1} ${1}"
+    OUTPUT=""
 fi
 
 echo "${SVGCONVERT} ${OPTIONS} ${3} ${2}/${ICONNAME}.png"
-${SVGCONVERT} ${OPTIONS} ${3} ${2}/${ICONNAME}.png
+${SVGCONVERT} ${OPTIONS} ${3} ${OUTPUT} ${2}/${ICONNAME}.png