gcc compilation problem in redhatLinux8.0

[Guruhema Prasad N <guru@xxxxxxxxxxxxx>]

Hi All,

I am developing an application on redhatLinux8.0, I am getting 
compilation problem. I have attached the compilation errors file with 
this (filename:redhat8.0errors).

with the following corrections it works fine.

1. Comment the line number 596 in /usr/include/stdlib.h
  /**
  extern int atexit (void (*__func) (void)) __THROW;
  **/

2. modify the file /usr/X11R6/include/X11/Xlib.h
  at line 77 by adding following code it works fine

  #ifdef linux
  #include <stddef.h>
  #else

Note:- The same file if I compile in SuseLinux8.0, it compiles with 
no-errors.

Can I proceed with above corrections !!,

Please suggest a solution.

Thanks,

Guruhema Prasad N

cc1: warning: changing search order for system directory "/usr/include"
cc1: warning:   as it has already been specified as a non-system directory
In file included from /usr/include/features.h:291,
                 from /usr/include/string.h:26,
                 from ../mydir/myfile1.h
                 from ../mydir/myfile2.h
                 from ../mydir/myfile3.h
                 from myfile4.c:2:
/usr/include/sys/cdefs.h:174:1: warning: "__attribute_malloc__" redefined
In file included from ../mydir/myfile1.h:10,
                 from ../mydir/myfile2.h:4,
                 from ../mydir/myfile3.h:1,
                 from myfile4.c:2:
/usr/include/malloc.h:61:1: warning: this is the location of the previous definition
In file included from /usr/include/X11/Intrinsic.h:56,
                 from /usr/include/Xm/Xm.h:56,
                 from ../mydir/myfile1.h:22,
                 from ../mydir/myfile2.h:4,
                 from ../mydir/myfile3.h:1,
                 from myfile4.c:2:
/usr/include/X11/Xlib.h:83: conflicting types for `wchar_t'
/usr/lib/gcc-lib/i386-redhat-linux/3.2/include/stddef.h:294: previous declaration of `wchar_t'
In file included from ../mydir/myfile1.h:40,
                 from ../mydir/myfile2.h:4,
                 from ../mydir/myfile3.h:1,
                 from myfile4.c:2:
/usr/include/stdlib.h:596: parse error before numeric constant