Greetings! If we are going to use mingw64, with a 32bit long, is there any objection to having a 32bit fixnum?
Take care, Kilian Singer <[email protected]> writes: > Dear Camm, > as far as I understand the msys mingw installation: > You have msys64/usr/bin/gcc which behaves most unix like but > for deployment it needs cygwin. So this gcc is best used to compile > tools which you only use within the msys installation. The compiler is > used as standard if the shell is run from:msys2_shell.bat > > Then you have msys64/mingw64/bin/gcc which is equal to > x86_64-w64-mingw32-gcc and is made to compile windows64 bit > such that you can get a single file without the need for dlls. > So my guess was always that msys64/mingw64/bin/gcc is the compiler to > use for win64. > > Indeed the microsoft visual studio compiler has sizeof(long) 4 in > both 32 and 64 bit. > > This is as much as I could find on the topic: > http://stackoverflow.com/questions/7607502/sizeoflong-in-64-bit-c > > https://cygwin.com/cygwin-ug-net/programming.html > > I guess it would be safest to replace all long by long long in gmp and gcl. > > And then compile with gcc in mingw64. > > Best regards > Kilian > > > Am 25.11.2014 um 17:48 schrieb Camm Maguire: >> Greetings, and thank you again for making this machine available. >> >> I am confused at the diversity of abi's and do not know how to proceed. >> >> The c:/msys64/usr/bin/gcc has an 8 byte long, whereas >> c:/msys64/mingw64/bin/gcc has 4 bytes, forcing gcl to work with 'long >> long'. The system gmp libraries also apparently have a 4 byte long, so >> we need to either build our own or download a version with a 'long long' >> gmp limb. I've attempted this, but gmp has a configure error in this >> configuration, at least on first attempt. >> >> I don't see why we don't try to work with c:/msys64/usr/bin/gcc, except >> for the fact that apparently external packages, like mingw gmp, have >> been built with a 4 byte long, and because I really don't know what it >> is :-). Ultimately we need for this to work 'out of the box' with >> whatever the 'standard user' will install. >> >> Is there a standard here? If it is a four byte long, do you know if gmp >> can be built with a long long limb? The documentation does not list >> mingw explicitly among the possible targets in this regard. Can we work >> rather with c:/msys64/usr/bin/gcc? >> >> Take care, >> > > > > > -- Camm Maguire [email protected] ========================================================================== "The earth is but one country, and mankind its citizens." -- Baha'u'llah _______________________________________________ Gcl-devel mailing list [email protected] https://lists.gnu.org/mailman/listinfo/gcl-devel
