SUBINVALIDCHR

Message        Parameter substitution produced an invalid character
               constant.

Description    In certain modes, the compiler will replace
               identifiers found within a character constant if they
               match a macro argument name.  This form of "old-style
               stringization" is provided for compatibility with
               older C compilers.  This message is output if this
               replacement forms an invalid character constant.

User Action    Modify the macro argument so that a valid character
               constant is formed.