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%************************************************************************
%*									*
\section[Driver-consistency-chk]{@chk_consistency_info@: Check an executable for consistency}
%*									*
%************************************************************************

\begin{code}
sub chk_consistency_info {
    local($executable) = @_;
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    local($major_version, $minor_version);
    local($phase, $infile, $opts);

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    $executable = "${executable}.exe" if $TargetPlatform eq 'i386-unknown-cygwin32';

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    print STDERR "Checking consistency of: $executable\n" if $Verbose;

    &tidy_up_and_die(1, "Panic: no such executable: $executable\n")
	if ! -x $executable;

    # by this point, consistency strings (with commas) have become
    # local symbols (with .'s)
    $HsC_consist_options =~ s/,/./g;
    $Cc_consist_options  =~ s/,/./g;

    # now run `nm' and check all the version info
    open(CONSIST, "$Nm -p $executable |") || &tidy_up_and_die(1,"$Pgm: can't run: $Nm\n");
    while (<CONSIST>) {
	chop;
	next if ! /^[\da-fA-F]+\s+[tn]\s+(hsc|cc)\./;

	if (/^[\da-fA-F]+\s+[tn]\s+(hsc|cc)\.(\S+)\.(\d+)\.(\d+)\.(.*)/) {
	    $phase = $1; $infile = $2;
	    $major_version = $3; $minor_version = $4;
	    $opts = $5;
	    if ($phase eq 'hsc') {
		$Status++,
		print STDERR "$Pgm: consistency error: major version not $HsC_major_version:\n$_\n"
		    if $major_version != $HsC_major_version;
		print STDERR "$Pgm: consistency warning: minor version not $HsC_minor_version:\n$_\n"
		    if $minor_version != $HsC_minor_version;
		$Status++,
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		print STDERR "$Pgm: consistency error: not options $opts -- $HsC_consist_options:\n$_\n"
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		    if $opts ne $HsC_consist_options;

	    } else { # phase is cc ...
		$Status++,
		print STDERR "$Pgm: consistency error: major version not $Cc_major_version:\n$_\n"
		    if $major_version != $Cc_major_version;
		print STDERR "$Pgm: consistency warning: minor version not $Cc_minor_version:\n$_\n"
		    if $minor_version != $Cc_minor_version;

		$Status++,
		print STDERR "$Pgm: consistency error: not options $Cc_consist_options:\n$_\n"
		    if $opts ne $Cc_consist_options;
	    }
	} else {
	    print STDERR "$Pgm: consistency-checking: unrecognised `what' line:\n$_\n";
	}
    }
    close(CONSIST) || &tidy_up_and_die(1,"Failed in running $Nm (consistency checking)\n");
}

# make "require"r happy...
1;
\end{code}