On Monday, 12 March 2012 06:15:35 UTC+8, Jeroen Demeyer wrote: > > I have made a spkg for GCC (GNU compiler collection) version 4.6.3 with > compilers for C, C++ and Fortran, see Trac #12369. > > The GCC spkg depends on an MPC (multi-precision complex numbers) spkg. > There has been an optional MPC package and a Sage interface for it. GCC > would use the upgraded MPC package from #12515. > > According to (unwritten?) rules, one cannot add a spkg as standard > package if it hasn't been an optional spkg first. I would like to ask > for an exception for GCC and add it immediately as standard package in > sage-5.0. Also MPC would need to become a standard package, but this > already has been an optional package and so is less controversial. > > Let me clarify that GCC would not always be built: if the system already > contains sufficiently recent versions of gcc, g++ and gfortran (or g95 > or g77), then GCC would not be built. Currently, "sufficiently recent > version of gcc" is defined as: at least 4.4.0 but not 4.6.0 nor 4.6.1 > (there are known bugs in cliquer and rubiks with these gcc versions). > $ gcc -v Using built-in specs. Target: i686-apple-darwin10 [...] gcc version 4.2.1 (Apple Inc. build 5666) (dot 3)
You seem to indicate this will not be used to build Sage any more. Right? (even though this is a working setup, as far as Sage 5.0.beta* are concerned... Thanks, Dima > An environment variable SAGE_INSTALL_GCC can be used to override this > default choice (set to "yes" to force installation of GCC or to "no" to > prevent it). > > The Fortran package (which contained gfortran binaries for OS X) would > be removed, therefore about 4MB would be added to the source tarball > size (Fortran was 33MB, GCC+MPC is 37MB). > > I think there is not much point in making GCC optional, since it's only > used at build-time. Once Sage has been built, you don't need it anymore. > > What are your +1/-1 to making GCC and MPC standard packages? > > > Jeroen. > > -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
