Re: gcc as strictly win32 compiler
On Fri, Jan 31, 2003 at 07:26:12PM -, Max Bowsher wrote: >If you are not using any of the unix APIs, you may be interested in the >MinGW project (mingw.sf.net). Cygwin's gcc takes the -mno-cygwin option >which causes it to function as a MinGW compiler - i.e. the produced exes use >MSVCRT, not cygwin1.dll. And as a fish teaching exercise, you might be interested in the command: gcc -v --help 2>&1 | less which tells you about -mno-cygwin among other things. Also, perhaps more importantly, the FAQ has a section entitled "How do I compile a Win32 executable that doesn't use Cygwin?" cgf -- Please use the resources at cygwin.com rather than sending personal email. Special for spam email harvesters: send email to [EMAIL PROTECTED] and be permanently blocked from mailing lists at sources.redhat.com -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Re: gcc as strictly win32 compiler
-Original Message- From: "Max Bowsher" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> Date: Fri, 31 Jan 2003 19:26:12 - Subject: Re: gcc as strictly win32 compiler Sean McBride wrote: >... as I understand it, cygwin.dll interprets many commands and > uses MSVCRT.dll on the back end. How do I create a redistributable > for users without cygwin, and How badly does this hit performance? Cygwin does not use msvcrt.dll. It uses newlib as its C library, which is compiled into cygwin1.dll. ... If you are not using any of the unix APIs, you may be interested in the MinGW project (mingw.sf.net). Cygwin's gcc takes the -mno-cygwin option which causes it to function as a MinGW compiler - i.e. the produced exes use MSVCRT, not cygwin1.dll. ___ Newlib is not highly optimized, but certain "math library" functions in MSVCRT.dll are extremely slow on P4; if you use those functions, you may see a measurable performance loss with -mno-cygwin. I doubt any valid generalizations could be made on performance. Tim Prince -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: gcc as strictly win32 compiler
Sean McBride wrote: > I know this is a VERY newbie question, but I have looked on the list > archives and been confused by the compiler flags for making win apps, > and the definitions of WIN32 and CYGWIN defines. > > I have several straight win32 apps that I wrote using MSVC and I > simply want to create the executables with gcc rather than MSVC(just > for fun, does that make me evil?). > > I have used gcc with tornado for some embedded apps before, so I am > not completely unfamiliar with gcc (only for C files though). > > I wrote the makefiles, and after a while tinkering with some defines > and slight syntax changes, I was surprisingly quickly successful at > getting a code base that compiles on Both MSVC and GCC. (most of my > headaches came from MSVC's implementation of STL) > > However, I have a few questions about how this will affect my exes. > > Is it possible to compile an exe that does not require the cywin.dll > if I am not using any of the unix apis and sticking with straight > win32? What compiler flags should be used for this and what macros > do they define? > > if not, as I understand it, cygwin.dll interprets many commands and > uses MSVCRT.dll on the back end. How do I create a redistributable > for users without cygwin, and How badly does this hit performance? Cygwin does not use msvcrt.dll. It uses newlib as its C library, which is compiled into cygwin1.dll. You cannot create a redistributable for users without Cygwin. (Short of a minimal Cygwin install) If you are not using any of the unix APIs, you may be interested in the MinGW project (mingw.sf.net). Cygwin's gcc takes the -mno-cygwin option which causes it to function as a MinGW compiler - i.e. the produced exes use MSVCRT, not cygwin1.dll. Max. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
