+ [FONTFORGE],
+ [fontforge],
+ [AC_MSG_ERROR([fontforge program not found])]
+)
+
+AC_PATH_PROG(
+ [SCOUR],
+ [scour],
+ [AC_MSG_ERROR([scour program not found])]
+)
+
+AC_PATH_PROG(
+ [XSLTPROC],
+ [xsltproc],
+ [AC_MSG_ERROR([xsltproc program not found])]