running out of memory.
@@
+@RET@ FcBool
+@FUNC@ FcCharSetDelChar
+@TYPE1@ FcCharSet * @ARG1@ fcs
+@TYPE2@ FcChar32% @ARG2@ ucs4
+@PURPOSE@ Add a character to a charset
+@DESC@
+<function>FcCharSetDelChar</function> deletes a single unicode char from the set,
+returning FcFalse on failure, either as a result of a constant set or from
+running out of memory.
+@@
+
@RET@ FcCharSet *
@FUNC@ FcCharSetCopy
@TYPE1@ FcCharSet * @ARG1@ src