How do I run a program compiled in cygwin from a program that is running in a Windows CMD shell?

Ted Byers
Thu Sep 15 19:25:00 GMT 2011

Larry Hall (Cygwin <reply-to-list-only-lh <at>> writes:

> On 9/15/2011 1:28 PM, Ted Byers wrote:
> > LMH<lmh_users-groups<at>>  writes:
> <snip>
> > What, exactly, does '-mno-cygwin' do?
> >
> > BTW: With gcc v 4.5.3, using 'G++ -mno-cygwin' followed by the other
> > commandline arguements needed to compile something results in an error 
> > it complains '-mno-cygwin' is no longer valid (I forget the exact wording, 
> > that is the gist of the error message I got).
> Right. '-mno-cygwin' is not a supported flag for gcc with version 4.  It was
> there to allow a kind of cross compiler that targets Win32 instead of
> Cygwin.  This is obviously not what you want anyway so it's of no
> consequence to you that the flag has been removed.   There are now
> actual cross compilers available in Cygwin for gcc 4 that serve the purpose
> of the old '-mno-cygwin' flag.
Hi Larry, 


I installed only the gcc4 compilers (all of them, v4.5.3), but I didn't even 
look for cross compilers.

What is the name of the cross compilers (would they be those that 
include 'mingw' in the name?  Not having installed, them, perhaps this is a 
naive question, but will they live alongside the gcc4 compilers without the 
names of the compilers clashing?  I recalled something about mingw, but 
thought that was a completely different approach to having gcc on Windows, and 
in the versions included with RTools, the names of the programs there would 
definitely collide with those for gcc4

Thanks again


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