[Dev-C++] How to switch to the Cygwin Compiler?

[Gregor P. <pe...@in...>]

Hi folks,

Upon some trouble with the mingw compiler I want to switch to the cygwin 
compiler like the 'Mingw and Cygwin.txt' says I added some variable 
settings to my 'autoexec.bat'.

The paths mentioned in the 'Mingw and Cygwin.txt' differ from those on 
my system so I tried a most recent matching (or that what I think that is).

Min and Cygwin.txt:
--------------------
    SET PATH=C:\cygnus\cygwin-b20\H-i586-cygwin32\bin;%PATH%
    SET C_INCLUDE_PATH=C:\cygnus\cygwin-b20\include
    SET 
CPP_INCLUDE_PATH=C:\cygnus\cygwin-b20\include\g++;C:\cygnus\cygwin-b20\include
    SET LIBRARY_PATH=C:\cygnus\cygwin-b20\H-i586-cygwin32\i586-cygwin32\lib
    SET GCC_EXEC_PREFIX=C:\cygnus\cygwin-b20\H-i586-cygwin32\lib\gcc-lib

Used substitudes in my 'autoexec.bat':
------------------------------------
    REM *****************************************
    REM Added to use cygwin Compiler with Dev-C++
    REM *****************************************
    REM these can also be edited by Compiler options from Dev-C++ IDE
    SET PATH=C:\cygwin\bin\;%PATH%
    SET C_INCLUDE_PATH=C:\cygwin\usr\include\;C:\cygwin\usr\include\w32api\
    SET 
CPP_INCLUDE_PATH=C:\cygwin\usr\include\g++-3\;C:\cygwin\usr\include;C:\cygwin\usr\include\w32api\
    SET LIBRARY_PATH=C:\cygwin\lib\;C:\cygwin\lib\w32api\

    REM this can't be edited by Compiler options from Dev-C++ IDE
    SET 
GCC_EXEC_PREFIX=C:\cygwin\lib\gcc-lib\i686-pc-cygwin\2.95.3-5\include


****************************************************************

Most of my programms can be compiled but two exceptions:
1) The funktion 'itoa(...)' isn't declared,
    in the header file 'stdlib.h' like I expected it
     => As far as I know 'stdlib.h' belongs to ANSI-C standard, so
        why 'itoa(...)' isn't declared in here?
     => Where do I find the correct header?
     => Which path (s. above) do I have to change in my 'autoexec.bat'?

2) After compiling nad linkting a Windows programm I get
    this warning:
 
/usr/lib/gcc-lib/i686-pc-cygwin/2.95.3-5/../../../../i686-pc-cygwin/bin/ld: 
warning: cannot find entry symbol _WinMainCRTStartup; defaulting to 00401000
     The default setting seems to be OK, because the programm runs.
          => What have I to do to get rid of this warning?

****************************************************************

CU
   Gregor	(pe...@in...)