[Mingw-users] Erros while addapting a std c99 file to compile with mingw gcc >= 4.x

[Thomas S. <ste...@gm...>]

Hello,

while I'm trying to addapt my std c99 compilant sourcecode file
to compile with mingw gcc >= 4.4.x I get many warnings and errors:

First problem is that the compiler doesn't know GWL_USERDATA
and GWL_WNDPROC which ist defined in winuser.h

e.g.
---snip---
src/main.c:653: error: 'GWL_USERDATA' undeclared (first use in this
function)
src/main.c:1540: error: 'GWL_WNDPROC' undeclared (first use in this
function)
---snap---

I have the file winuser.h in the include path and use #include winuser.h
within #include windows.h

All other constants are known by the compiler, expet these constannts
above. Why? And how can I fix that, without to declaring the vars by
my own?

And why the gcc 4.x.x doesn't know theses constants and the gcc 3.x.x
does know? Removed constants? But I see them in winuser.h at line 905
and line 910.


Thomas