diff -r c264564e4c89 -r f7d950c3431c configure.ac
--- a/configure.ac	Mon Apr 18 14:55:22 2016 +0100
+++ b/configure.ac	Mon Apr 18 15:04:30 2016 +0100
@@ -92,8 +92,12 @@
 AC_LIBTOOL_WIN32_DLL
 AC_PROG_LIBTOOL
 PKG_PROG_PKG_CONFIG
-AC_CHECK_TOOL(WINDRES,windres,no)
+AC_CHECK_TOOL([WINDRES],[windres],[no])
 AM_CONDITIONAL([HAVE_WINDRES],[test x$WINDRES != xno])
+AC_CHECK_PROGS([RSVG],[rsvg rsvg-convert],[no])
+if test "$RSVG" = no; then
+    AC_MSG_ERROR([no rsvg program found to convert SVG files to bitmaps])
+fi
 
 ##################################################
 # Checks for header files.