On Thu, Dec 15, 2005 at 05:45:40AM -0800, Tim Prince wrote: >Piero Silvestri wrote: >>Brain wrote: >>>-mno-cygwin essentially turns gcc into the gcc provided by mingw.org. >>>Read the docs/wiki/faq/etc at that site for more information. Note >>>that when you use gcc -mno-cygwin your search paths will be modified so >>>that no Cygwin libraries/headers will be found, instead the mingw ones >>>will be searched (/usr/include/mingw, /usr/lib/mingw). Essentially >>>this is just a shortcut for compiling with the mingw toolchain under >>>Cygwin - do not get confused and think that this somehow lets you use >>>Cygwin library functions in any shape or form. If you use mingw or >>>-mno-cygwin, you are essentially programming directly at the win32 API >>>and the MSVCRT, you have no unix emulation at all other than what is >>>provided by the microsoft C library. >> >>Thanks Brian, now -mwindows is clear to me, and the strange linker >>problem has gone, but I have one more question on -mno-cygwin option. >>When I installed the latest release of Cygwin I found gcc 3.4.4 in its >>packages, which I installed as well; and if I use it with the >>-mno-cygwin option when compiling everything's allright. >> >>But then I downloaded the gcc 4.0.2 sources, which I compiled in Cygwin >>with the old gcc provided, so now I have a second version of gcc >>currently working. The problem is that this version has some problem >>with the -mno-cygwin option; if I use it when compiling I get the error >>message: "gcc: installation problem, cannot exec 'cc1': No such file or >>directory". Do you think that this is a CygWin's configuration problem >>or a gcc one? >> >-mno-cygwin is supported by "cygwin-special" patches to standard gcc. >This is among the obstacles to keeping cygwin up to date with respect >to gcc. mingw appears more difficult to support anyway, judging by the >results (rarely) posted to gcc-testsuites.
AFAIK, there are no "cygwin-special" patches related to -mno-cygwin in the cygwin distribution version of gcc. I spent some time on getting this more-or-less working a few years ago and I checked in everything I had. If there are patches, then Gerrit should submit them and we'll work towards getting them approved. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
