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###############################################################
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# setarchitecture #
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###############################################################
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# modified : Fri Jul 12 13:55:16 2002 / SFA #
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# params : none #
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# : #
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# : #
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# : #
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# function : Set the architecture variable. Use simple uname #
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# : query for Sun: for Linux, alos try libc checking.#
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# : #
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# : #
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###############################################################
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package setarchitecture;
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require 5.001;
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require Exporter;
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@ISA = qw(Exporter);
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@EXPORT = qw(setarch);
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# Currently, this is only used for UNIX systems. Not entirely sure what
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# happens on Windows (most people tend to use CYGWIN). Eventually, this
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# will need to be improved for non-UNIX architectures:
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sub setarch
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{
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my $uname=`uname -a`;
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my ($OSname, $hostname, $OSversion, @rest) = split / /, $uname;
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# Retain only the first two version digits:
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if ( $OSname =~ SunOS )
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{
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$OSversion =~ s/^(.\..)\..*/\1/;
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}
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if ( $OSname =~ Linux )
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{
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# Firstly we check for the kernel version.
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$OSversion =~ s/^(.\..)\..*/\1/;
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# Now, we also check for the libc version to confirm (or otherwise)
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# the choice determined by the previous step:
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# my $lddcmd="ldd /bin/ls";
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# my ($match) = (`$lddcmd|grep libc` =~ /\s+libc\.so.*\s\=.*\s(.*)\s.*/);
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# Open the ldd command as a pipe:
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# my $pid=open(LDD,"$lddcmd 2>&1 |");
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# exit(1) unless (defined($pid));
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# Loop over lines of output:
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# while (<LDD>)
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# {
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# chomp $_;
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# if (my ($match) = ($_ =~ /\s+libc\.so.*\s.*\s(.*)\s.*/))
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# {
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# print "> LDD Match: ",$match,"\n";
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# last;
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# }
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# }
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#
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# Grab something that looks like "libc.*":
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# Check if this libc thing is a soft link (it should be):
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# Find out what the thingy is that the link points to:
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#
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}
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# Set arch flag to [OS type]__[OSversion]:
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if ( ! defined $ENV{SCRAM_ARCH} )
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{
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$ENV{SCRAM_ARCH}="${OSname}__${OSversion}";
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}
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return (0);
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}
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