Failed to compile on Win32 with --enable locale

Your name : Ronald Kuczek
Your email address : ronald(at)breitenbach-it(dot)de

System Configuration
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Architecture (example: Intel Pentium) : Intel Pentium

Operating System (example: Linux 2.0.26 ELF) : Windows NT 4.0 Workstation

PostgreSQL version (example: PostgreSQL-7.0): PostgreSQL-7.0.2

Compiler used (example: gcc 2.8.0) : cygwin 1.1.x

Please enter a FULL description of your problem:
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I enabled --enable-locale and --enable-multibyte with configure script.
Compilation failed with errors:
in file ../src/backend/utils/adt/pg_locale.c
undeclared identifier LC_MESSAGES

Please describe a way to repeat the problem. Please try to provide a
concise reproducible example, if at all possible:
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configure --enable-locale --enable-multibyte
make

If you know how this problem might be fixed, list the solution below:
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I don't know, if I did correct, I have modified file /usr/include/locale.h (in cygwin directory)
and added
#define LC_MESSAGES 6
Now I have compiled succesfull.

Best regards
Rony