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Re: Anyone built Emacs with gcc-3.3?

From: Puneet Goel
Subject: Re: Anyone built Emacs with gcc-3.3?
Date: Wed, 09 Jul 2003 07:31:05 -0500
User-agent: Gnus/5.1002 (Gnus v5.10.2) Emacs/21.3.50 (usg-unix-v)

>>>>> "Dave" == Dave Love <address@hidden> writes:

    Dave> puneet <address@hidden> writes:
    >> I have compiled emacs in gcc 3.3. Actually I configured gcc for
    >> sparcv9 arch. And hence my emacs is 64-bit.

    Dave> That doesn't follow.  -mcpu=v9 is orthogonal to -m64.

    Sorry, I did not know that. For record, I am not a software
    engineer. I am a hardware professional. And I needed 64-bit emacs
    to read big files. I do use gcc -m64 for building my emacs. I try
    building 64-bit emacs from emacs CVS almost once a week. Never
    faced a problem.

    I think I first successfully built 64-bit emacs some three months
    back. That was the time when our sys-admin upgraded my sparc
    machine to solaris 2.8. Our sys-admin is on leave, and I do not
    know a way to get patch information on my system. I believe he
    installed just the recommended patches from Sun.

    So I have been compiling and running 64-bit emacs versions 21.X
    and 21.3.50 on my solaris 2.8 for the past three months now
    without any issue. The only issue I face is when I set my display
    to a linux system, and launch 64-bit emacs on that display, emacs
    dumps core. 32-bit solaris emacs compiles work fine.

    I am sure that my emacs is 64-bit because ....

    1. I use gcc -m64 to compile that.
    2. I am able to open BIG files (200MB and more) with this
       emacs. 32-bit emacs gives "Maximum buffer size exceeded" for
       the same files.
    3. I had to compile 64-bit versions of all the required
       libraries. And my emacs is linked to 64-bit versions of sun
       libraries. here is the ldd output ....
$ ldd /home/pgoel/local/gnu/arch/sparcv9-sun-solaris2.8/bin/emacs
        libXaw3d.so.5 =>         
        libXmu.so.4 =>   /usr/lib/64/libXmu.so.4
        libXt.so.4 =>    /usr/lib/64/libXt.so.4
        libSM.so.6 =>    /usr/lib/64/libSM.so.6
        libICE.so.6 =>   /usr/lib/64/libICE.so.6
        libXext.so.0 =>  /usr/lib/64/libXext.so.0
        libtiff.so =>    
        libjpeg.so.62 =>         
        libpng.so.3 =>   
        libz.so =>       
        libm.so.1 =>     /usr/lib/64/libm.so.1
        libungif.so.4 =>         
        libXpm.so.4.11 =>        
        libX11.so.4 =>   /usr/lib/64/libX11.so.4
        libsocket.so.1 =>        /usr/lib/64/libsocket.so.1
        libnsl.so.1 =>   /usr/lib/64/libnsl.so.1
        libkstat.so.1 =>         /usr/lib/64/libkstat.so.1
        libcurses.so.1 =>        /usr/lib/64/libcurses.so.1
        libc.so.1 =>     /usr/lib/64/libc.so.1
        libICE.so.6 (SUNWprivate) =>     (version not found)
        libICE.so.6 (SUNWprivate) =>     (version not found)
        libdl.so.1 =>    /usr/lib/64/libdl.so.1
        libdga.so.1 =>   /usr/openwin/lib/sparcv9/libdga.so.1
        libgcc_s.so.1 =>         
        libmp.so.2 =>    /usr/lib/64/libmp.so.2

    Dave> `file' will tell you whether the binary is 64-bit, but as
    Dave> far as I remember, you won't get 64-bit Emacs words with gcc
    Dave> anyhow since gcc doesn't define _LP64.  (gcc -m64 wasn't
    Dave> useful when I last touched 64-bit sparc configuration.)

          Well file does say that it is 64-bit version.

    Dave> Somewhere I have some changes to somewhat sanitize 64-bit
    Dave> configuration, but as far as I know there are still some
    Dave> basic problems with 64-bit systems, especially big-endian
    Dave> ones, and I'm surprised they work at all...

          I am not competent to comment on these. The first time I
          compiled 64-bit emacs was sometimes in oct 2002. RMS had put
          a request on the emacs-pretesters list for testing on 64 bit
          machines. At that time, I could compile emacs. I could even
          run it with "emacs -nw". X11 emacs used to dump core. It
          seemed to be some openwin internal error. I had reported
          all this on the emacs-pretesters list.

          Now I work for a different organization. And 64-bit emacs
          compiles have been running fine since last 3 months. I use
          64-bit emacs for almost everything (including gnus etc.)

    Dave> If it behaves differently on different Solaris systems with
    Dave> the same OS version then you should probably look at all the
    Dave> installed patches, versions of development tools (I assume
    Dave> you use the Sun ld) and what you pick up from the system
    Dave> libraries -- the version of malloc in particular.

          I do use sun ld. I do not know how to check for which
          malloc I am using. Should I send you the config.log file??

    Dave> --

- p

Puneet Goel
TranSwitch India
LEAD me in the centre of thy silence
to fill my heart with songs.
Stray Birds, Rabindernath Tagore


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