diff -ur chemical-mime-data-0.1.94.orig/configure.ac chemical-mime-data-0.1.94/configure.ac
--- chemical-mime-data-0.1.94.orig/configure.ac	2007-02-04 04:22:31.000000000 +0100
+++ chemical-mime-data-0.1.94/configure.ac	2013-04-06 01:29:50.334699773 +0200
@@ -90,25 +90,32 @@
 dnl rsvg or convert (imagemagick)
 dnl --------------------------------------------------------------------------
 
+# Search for both program but disable one of them using /bin/true
 AC_ARG_VAR(
 	[CONVERT],
 	[The 'convert' binary with path. Use it to define or override the location of 'convert'.]
 )
-AC_PATH_PROG([CONVERT], [convert], [no])
-AC_SUBST([CONVERT])
+AC_PATH_PROG([CONVERT], [convert], [/bin/true])
+AS_IF([test "x$CONVERT" = "x/bin/true"], [enable_convert=no])
+
+AC_ARG_VAR(
+	[RSVG_CONVERT],
+	[The 'rsvg-convert' binary with path. Use it to define or override the location of 'rsvg-convert'.]
+)
+AC_PATH_PROG([RSVG_CONVERT], [rsvg-convert], [/bin/true])
+
 
-if test "x$enable_convert" != "xyes" -a "x$CONVERT" = "xno" ; then
-	AC_ARG_VAR(
-		[RSVG],
-		[The 'rsvg' binary with path. Use it to define or override the location of 'rsvg'.]
-	)
-	AC_PATH_PROG([RSVG], [rsvg], [no])
-	AC_SUBST([RSVG])
-fi
-
-if test "x$RSVG" = "xno" -a "x$CONVERT" = "xno" ; then
-	AC_MSG_ERROR([Cannot find rsvg (librsvg binary) or convert (imagemagick). Please install one of them.])
-fi
+AS_IF( [test "x$RSVG" = "x/bin/true"], AS_IF([test "x$RSVG_CONVERT" = "x/bin/true"], 
+	AC_MSG_ERROR([Cannot find rsvg-convert (librsvg) or convert (imagemagick). Please install one of them.])))
+
+AS_IF(
+	[test "x$enable_convert" = "xyes"],
+	[RSVG=/bin/true],
+	[CONVERT=/bin/true]
+)
+
+AC_SUBST([CONVERT])
+AC_SUBST([RSVG_CONVERT])
 
 dnl --------------------------------------------------------------------------
 dnl install locations

diff -ur chemical-mime-data-0.1.94.orig/icons/hicolor/Makefile.am chemical-mime-data-0.1.94/icons/hicolor/Makefile.am
--- chemical-mime-data-0.1.94.orig/icons/hicolor/Makefile.am	2007-01-28 16:54:14.000000000 +0100
+++ chemical-mime-data-0.1.94/icons/hicolor/Makefile.am	2013-04-06 01:25:57.235701082 +0200
@@ -23,11 +23,8 @@
 .svg.svgz:
 	gzip $< -c > $@
 	for size in $(icon_sizes) ; do \
-		if test "x$(RSVG)" != "x" ; then \
-			$(RSVG) -w $${size} -h $${size} -f png $< $*_$${size}.png ; \
-		else \
-			$(CONVERT) $< -resize $${size}x$${size} $*_$${size}.png ; \
-		fi \
+		$(CONVERT) $< -resize $${size}x$${size} $*_$${size}.png ; \
+		$(RSVG_CONVERT) -w $${size} -h $${size} -f png $< -o $*_$${size}.png ; \
 	done
 
 all-local: $(icon_sources:.svg=.svgz)