[daip] forwarded message from Eric Greisen

[Eric Greisen]

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From: Eric Greisen <egreisen at nrao.edu>
To: "John Howard" <mjhoward at cit.ie>
Subject: Re: [daip] aips install problem
Date: Wed, 17 Nov 2004 08:36:28 -0700

You are using the gcc compiler suite on Solaris.  This will produce
code that is only about 2/3 as fast as that produced by the Solaris
compilers but if that is all you have then aips can be made to work.
Not by default - you will have to edit files:

cd $AIPS_ROOT
source LOGIN.CSH    (or . LOGIN.SH with bash)
$CDTST
cd $YSERV/XAS

1. edit Makefile    - note the options for LINUX, edit the SUL to
                      match
   make


Then   cd $SYSLOCAL

2. edit CCOPTS.SH - the case statement is wrong put in 

case $COMPILER in
#                                       GNU g77
    *gcc)
        OPT0="-O3 -fomit-frame-pointer -funroll-loops"
        OPT1="$OPT0"
        OPT2="$OPT1"
        OPT3="$OPT2"
        COMP=""
        ;;
#                                       SUN compiler
    *SUN*cc)
        OPT1="-xO1"
        OPT2="-xO2"
        OPT3="-xO3"
        OPT8="-xO4"
        OPT9="-xO5"
        ;;
#                                       Some other compiler.  If f2c,
#                                       set some sensible options.
    *)
        COMP=""
        ;;
esac


instead.  Note the only difference is the reference to C compilers
rather than Fortran ones.

Eric Greisen
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