http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51418
--- Comment #2 from John.Harper at msor dot vuw.ac.nz 2011-12-05 21:01:09 UTC --- Thank you. I have had absolutely no luck trying to build GCC (I got as far as configure appearing to complete OK but make ended with checking whether ln -s works... yes checking for i386-redhat-linux-gnu-gcc... /tmp/gccobj/./gcc/xgcc -B/tmp/gccobj/./gcc/ -B/tmp/i386-redhat-linux-gnu/bin/ -B/tmp/i386-redhat-linux-gnu/lib/ -isystem /tmp/i386-redhat-linux-gnu/include -isystem /tmp/i386-redhat-linux-gnu/sys-include checking for suffix of object files... configure: error: in `/tmp/gccobj/i386-redhat-linux-gnu/libgcc': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details. make[1]: *** [configure-target-libgcc] Error 1 make[1]: Leaving directory `/tmp/gccobj' make: *** [all] Error 2 Unfortunately neither that nor config.log told me what I must change. I had to build gcc in /tmp because my own disk space can't hold the whole of gcc, which is several hundred Mb. G95 is much smaller. However I built GMP, MPFR and MPC in my own root directory. Another problem: my system is i386 and the build I found is i686. I don't know if the difference is important. Also, the gfortran installation instructions say Install using the following command: tar -xzvf gfortran-4.5-linux-i686.tar.gz -C / This will install gfortran in /usr/local/gfortran but they do not say what to do if one is not a superuser so can't put things in /usr/local . Assuming that what I had to do was tar -xzvf /tmp/gcc_2011-11-26.tgz -C /tmp I then tried that and found an executable file /tmp/gcc_2011-11-26/run/bin/gfortran but the command /tmp/gcc_2011-11-26/run/bin/gfortran -v gave /tmp/gcc_2011-11-26/run/bin/gfortran: /lib/libc.so.6: version `GLIBC_2.11' not found (required by /tmp/gcc_2011-11-26/run/bin/gfortran) What must I do now to finish installing gfortran? (I made a workaround for my original problem by writing a Fortran 95 module to simulate F0.n output. That revealed an error in the Intel compiler which I reported, but g95 and gfortran 4.4 worked properly with it!) On Mon, 5 Dec 2011, burnus at gcc dot gnu.org wrote: > Date: Mon, 5 Dec 2011 08:40:49 +0000 > From: burnus at gcc dot gnu.org <gcc-bugzi...@gcc.gnu.org> > To: john.har...@vuw.ac.nz > Subject: [Bug fortran/51418] Fortran format sp, > f0.0 output wrong with NaN and 0.0 > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51418 > > Tobias Burnus <burnus at gcc dot gnu.org> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |burnus at gcc dot gnu.org > > --- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-12-05 > 08:40:49 UTC --- > (In reply to comment #0) >> This 6-line program prints " NaN" when IMHO it should print "NaN" and "+." >> when IMHO it should print "+0." >> gcc version 4.4.4 20100726 (Red Hat 4.4.4-13) (GCC) >> gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) > > With GCC 4.7 and 4.6.2, I get: > "NaN" > "+0." > > However, with GCC 4.5.3 20110428, I get: > " NaN" > "**" > > Thus, it must have been fixed in 4.6 - either 4.6.0 or later. I saw some > I/O-format-related changes around 2011-04-29 and some others around > 2011-02-28. > > > As it is no regression, an (inconvenient but) minor issue, and as I/O format > fixes tend to have unexpected side effects, I do not think that the patches > will be back ported to 4.5 or even 4.4. > > > Thus, if the bug is a show stopper, you could try to install (possibly > parallel > to 4.4) a newer GCC/gfortran. For instance, Fedora 16 ships with GCC 4.6 and > Ubuntu offers it as personal builds (cf. > http://gcc.gnu.org/wiki/GFortranDistros). There is also a gfortran developer > build for i386-linux at http://gcc.gnu.org/wiki/GFortranBinaries, which you > could use - or you build GCC yourself. > > If it is no show stopper, you could also simply wait for the next Ubuntu > version or - for RHEL - for a 6.x version with a newer GCC as technical > preview. > > Thanks for reporting the bug! > > -- > Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You reported the bug. > -- John Harper, School of Mathematics Statistics and Operations Research Victoria University, PO Box 600, Wellington 6140, New Zealand e-mail john.har...@vuw.ac.nz phone (+64)(4)463 5276 fax (+64)(4)463 5045
