Make it possible to #define c_isascii etc. to aliases.

[pspp] / ChangeLog

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+2006-10-10  Bruno Haible  <bruno@clisp.org>
+
+       Make it possible to #define c_isascii to an alias.
+       * lib/c-ctype.h: Don't define the macros if NO_C_CTYPE_MACROS is
+       defined. Undefine the macros before defining them, to avoid gcc
+       warnings.
+       * lib/c-ctype.c: Include config.h. Don't undefine the macros; instead,
+       define NO_C_CTYPE_MACROS early.
+
 2006-10-10  Bruno Haible  <bruno@clisp.org>
 
        Make it possible to #define set_program_name to an alias.