problem compiling gtk+-1.2.5

["Mohd. K. Kasmin" <mkk mathed utm my>]

got this error while compiling gtk+-1.2.5

  testgtk.c:7771: `idle' redeclared as different kind of symbol
  /usr/include/unistd.h:669: previous declaration of `idle'
  testgtk.c:7771: warning: `idle' was declared `extern' and later `static'

What should I do since I am not sure whether the `idle' in
/usr/include/unistd.h refer to the same thing as the one in
gtk+-1.2.5/gtk/testgtk.c

Please help.

MKK