How can i define "_WIN32" macro??

[êëì <djkim at adc dot co dot kr>]

Hi all.

I got the following errors when building gdb-4.17  at the cygwin-1.3.22 :
...
  utils.o(.text+0x244f): In function `initialize_utils':
  /home/Administrator/Angel2/build-gdb-ae32000-elf/gdb/../../gdb-4.17/gdb/utils.c:2056: undefined reference to `_tgetent'
  utils.o(.text+0x245f):/home/Administrator/Angel2/build-gdb-ae32000-elf/gdb/../../gdb-4.17/gdb/utils.c:2061: undefined reference to `_tgetnum'
  utils.o(.text+0x247a):/home/Administrator/Angel2/build-gdb-ae32000-elf/gdb/../../gdb-4.17/gdb/utils.c:2071: undefined reference to `_tgetnum'
  ../readline/libreadline.a(display.o)(.text+0xdc3): In function `insert_some_chars':
  /home/Administrator/Angel2/build-gdb-ae32000-elf/readline/../../gdb-4.17/readline/display.c:757: undefined reference to `_tgoto'
  ../readline/libreadline.a(display.o)(.text+0xe5f): In function `delete_chars':
  /home/Administrator/Angel2/build-gdb-ae32000-elf/readline/../../gdb-4.17/readline/display.c:815: undefined reference to `_tgoto'
  collect2: ld returned 1 exit status
  make[1]: *** [gdb] Error 1
  make[1]: Leaving directory `/home/Administrator/Angel2/build-gdb-ae32000-elf/gdb'

A utils.c and a display.c include the below macro :

#if !defined (MPW) && !defined (_WIN32)
....
#if defined(_WIN32)
....

The reason of this problem is that "_WIN32" macro isn't defined.
But "_WIN32" macro exists  "/usr/include/w32api/windef.h" file.
  
 How can i to be defined "_WIN32" macro?

Djkim