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#!/Perl
# am2list01.pl
# AIM: Load Makefile.am files from a given folder, and list the source files found ...
# 25/09/2007 - some improvements, and remove MSVC8 stuff
# geoff mclane - http://geoffair.net/mperl
use strict;
use Cwd;
my $def_in_folder = 'C:\Projects\ftgl-2.1.3';
###my $def_in_folder = 'C:\FG\FGCOM\speex';
###my $def_in_folder = 'C:\FG\FGCOM\iaxclient';
###my $def_in_folder = 'F:\FG0910-4\fgms';
###my $def_in_folder = 'F:\FG0910-4\flightgear';
###my $def_in_folder = 'C:\FG0910-5\SimGear';
my $vers = "6";
my $pack = $0;
require 'logfile.pl' or die "Unable to load logfile.pl ...\n";
# log file stuff
my ($LF);
my $pgmname = $0;
if ($pgmname =~ /\w{1}:\\.*/) {
   my @tmpsp = split(/\\/,$pgmname);
   $pgmname = $tmpsp[-1];
}
my $outfile = "temp.$pgmname.txt";
my @warnings = ();
my @sources = ();   # final list of SOURCES
my @sources2 = ();   # final list of SRCS
my $verbose = 0;
my $verbose2 = 0;
my $verbose3 = 0;
# debug
my $dbg1 = 0;   # show each config file being scanned ...
my $dbg2 = 0;   # show each makefile.am being scanned ...
my $dbg3 = 0;   # show list of contents
my $debug_on = 0;
my $debug_on2 = 0;
my $debug_on3 = 0;   # show Storing configure_cond key
my $debug_on4 = 0;
my $debug_on5 = 0;
# String constants.
my $IGNORE_PATTERN = "^##([^#].*)?\$";
my $WHITE_PATTERN = "^[ \t]*\$";
my $COMMENT_PATTERN = "^#";
my $RULE_PATTERN = "^([\$a-zA-Z_.][-.a-zA-Z0-9_(){}/\$]*) *:([^=].*|)\$";
my $SUFFIX_RULE_PATTERN = "^\\.([a-zA-Z]+)\\.([a-zA-Z]+)\$";
my $MACRO_PATTERN = "^([A-Za-z][A-Za-z0-9_]*)[ \t]*([:+]?)=[ \t]*(.*)\$";
my $BOGUS_MACRO_PATTERN = "^([^ \t]*)[ \t]*([:+]?)=[ \t]*(.*)\$";
my $IF_PATTERN = "^if[ \t]+\([A-Za-z][A-Za-z0-9_]*\)[ \t]*\(#.*\)?\$";
my $ELSE_PATTERN = "^else[ \t]*\(#.*\)?\$";
my $ENDIF_PATTERN = "^endif[ \t]*\(#.*\)?\$";
my $PATH_PATTERN='(\\w|/|\\.)+';
# This will pass through anything not of the prescribed form.
my $INCLUDE_PATTERN = "^include[ \t]+((\\\$\\\(top_srcdir\\\)/${PATH_PATTERN})|(\\\$\\\(srcdir\\\)/${PATH_PATTERN})|([^/\\\$]${PATH_PATTERN}))[ \t]*(#.*)?\$";
my $AM_CONDITIONAL_PATTERN = "AM_CONDITIONAL\\((\\w+)";
my $AM_INIT_AUTOMAKE = "AM_INIT_AUTOMAKE\\(([^,]+),[ \t]*([^)]+)";
# Hash table of AM_CONDITIONAL variables seen in configure.
my %configure_cond = ();
# This holds the names which are targets.  These also appear in
# %contents.
my %targets = ();
# This holds the line numbers at which various elements of
# %contents are defined.
my %content_lines = ();
my %content_seen = ();
# This maps the source extension of a suffix rule to its
# corresponding output extension.
my %suffix_rules = ();
# Hash table of discovered configure substitutions.  Keys are names,
# values are `FILE:LINE' strings which are used by error message
# generation.
my %configure_vars = ();
# This holds the set of included files.
my @include_stack = ();
my $vcond;
my @conditional_stack = ();
my %contents = ();
my %conditional = ();
# This holds our (eventual) exit status.  We don't actually exit until
# we have processed all input files - except when 'critical' ...
my $exit_status = 0;
my @make_input_list = ();
my %make_list = ();
# Names used in AC_CONFIG_HEADER call.  @config_fullnames holds the
# name which appears in AC_CONFIG_HEADER, colon and all.
# @config_names holds the file names.  @config_headers holds the '.in'
# files.  Ordinarily these are similar, but they can be different if
# the weird "NAME:FILE" syntax is used.
my @config_fullnames = ();
my @config_names = ();
my @config_headers = ();
# Line number at which AC_CONFIG_HEADER appears in configure.ac.
my $config_header_line = 0;
# Relative location of top build directory.
my $top_builddir = '';
my $relative_dir = '.';
my $output_vars = '';
my $output_trailer = '';
# List of Makefile.am's to process, and their corresponding outputs.
my @input_files = ();
my %output_files = ();
# List of files in AC_OUTPUT without Makefile.am, and their outputs.
my @other_input_files = ();
my @var_list = ();
my %am_vars = ();
my %def_type = ();
my @excluded_dirs = ();
my @excluded_files = ();
my $msvc_cflags = "";
my $msvc_threads = "";
my $msvc_libs = "";
my @extra_sources = ();
my @extra_projects = ();
my %used_inc_paths = ();
my %used_lib_paths = ();
# new variables
my $msvc_dlibs = "";
my $msvc_rlibs = "";
my $in_debug = 0;
my $in_release = 0;
my $do_check = 0;
my $def_cfg = "am2dsp.cfg";
my $src_cfg = $def_cfg;
my $root_dir = '';
my @msvc_dlibs_list = ();
my @msvc_rlibs_list = ();
my @msvc_libs_list = ();
my @msvc_dlibs_paths = ();
my @msvc_rlibs_paths = ();
my @msvc_libs_paths = ();
my @msvc_inc_paths = ();
my @test_headers = ( 'zlib.h', 'AL/al.h', 'AL/alut.h',
  'simgear/compiler.h', 'simgear/debug/logstream.hxx', 'plib/pu.h', 'Main/main.hxx',
  'config.h', 'include/general.hxx', 'FGJSBBase.h');
my $add_groups = 0; # default to single, put duplicates 'Dupes' folder ... 
my @msvc_c_files = ();
my @msvc_h_files = ();
my @msvc_titles = (); # just to deal with duplicate names
# EXTRA_DIST file lists from Makefile.am list
my @msvc_c_extra = ();
my @msvc_h_extra = ();
my @msvc_o_extra = ();
my $err_msg = '';
# am2dsp?.cfg define = AAA
my %cfg_defines = ();
# configure.ac equivalent
my %def_defines = ( 'FG_JPEG_SERVER', 'ENABLE_JPEG_SERVER' );
# Extracted from AM_INIT_AUTOMAKE(package,version)
my $dsp_package = 'TEMPONLY';
my $dsp_version = '0.2';
my $static_lib = 0;
my $write_new_dsp = 0;   # write out DSP/DSW files
# other items
my $warn = '';
my $am_file = '';
open_log($outfile);
prt( "$0 ... Hello, World ...\n" );
my $cwdir = getcwd();
if (@ARGV) {
   parse_arguments(@ARGV);
} else {
   set_input_dir($def_in_folder);   # just for DEBUG
}
prt( "Read project configuration file ... $src_cfg ...\n" );
read_am2dsprc($src_cfg);
scan_configure();
mydie( "$pack: no input_files, so no 'Makefile.am' found or specified\n" )
    if ! @input_files;
foreach $am_file (@input_files) {
    prt( "\nProcessing [$am_file] from input_files array ...\n" ) if $verbose2;
    dsp_add_group($dsp_package, $am_file) if !exclude_dir($am_file);
}
if ($do_check) {
    check_includes();
}
if ( $write_new_dsp ) {
    write_new_dsp(); # experimental NEW DSP separating source and headers
}
#   prt( "SOURCES: $1 = $file\n" );
#   push(@sources, [$1, $file]);
#   } elsif ($key =~ /^SRCS_(.+)/) {
#   prt( "SRCS: $1 = $file\n" );
#   push(@sources2, [$1, $file]);
my $scnt = scalar @sources2;
if ($scnt) {
   prt( "\nGot $scnt SRCS, as follows ...\n" );
   for (my $i = 0; $i < $scnt; $i++) {
      my $obj = $sources2[$i][0];
      my $fls = $sources2[$i][1];
      prt( "$obj = $fls\n" );
   }
}
my $scnt = scalar @sources;
if ($scnt) {
   prt( "\nGot $scnt SOURCES, as follows ...\n" );
   for (my $i = 0; $i < $scnt; $i++) {
      my $obj = $sources[$i][0];
      my $fls = $sources[$i][1];
      prt( "$obj = $fls\n" );
   }
}
if (@warnings) {
   prt( "\nGot ".scalar @warnings." warnings, as follows ...\n" );
   foreach my $wn (@warnings) {
      prt( "$wn\n" );
   }
}
close_log($outfile,1);
exit($exit_status);
# end of process
sub add_group_start {
    my $dsp_name = shift;
    my $dsp_file = $root_dir . $dsp_name . '.dsp';
    open(DSP, ">>$dsp_file") || mydie( "Can't append to $dsp_file: $!\n" );
    print DSP "# Begin Group \"Source Files\"\r\n";
    print DSP "\r\n";
    print DSP "# PROP Default_Filter \"cpp;c;cxx;rc;def;r;odl;idl;hpj;bat;h;hpp;hxx;hm;inl\"\r\n";
    close(DSP);
}
sub add_group_end {
    my $dsp_name = shift;
    my $dsp_file = $root_dir . $dsp_name . '.dsp';
    open(DSP, ">>$dsp_file") || mydie( "Can't append to $dsp_file: $!\n" );
    print DSP "# End Group\r\n";
    close(DSP);
}
sub exclude_dir {
    my $dir = shift;
    foreach my $d (@excluded_dirs) {
    if ($dir =~ "/$d/") {
        return 1;
    }
    }
    return 0;
}
sub exclude_file {
    my $file = shift;
    foreach my $f (@excluded_files) {
    if ($file =~ /$f/) {
        return 1;
    }
    }
    return 0;
}
#
# TODO: option to specify static library or console app.
#
sub give_little_help {
    prt( "am2dsp".$vers.": Just a little help ...\n" );
    prt( "--help (or -h, -?) - This brief help!\n" );
    prt( "--verbose (or -v)  - Sets verbose mode. (-v2 for MORE)\n" );
    prt( "--package name     - Set the DSP package name (default = $dsp_package)\n" );
    prt( "--lib (or -l)      - To create static library (Default is console app.)\n" );
    prt( "--groups (or -g)   - Output source into 'group' folders, as original!\n" );
    prt( "--dir path         - Establish input path for source, and the $def_cfg.\n" );
    prt( "--check (or -c)    - Check libraries, and some known include files, and exit.\n" );
    prt( "--cfg path\\file   - Use a specific configuration file, if not with source.\n" );
    prt( "--msvc8            - Modify, or check, the vcproj files, if found.\n" );
    prt( "Note, this --cfg path\\file MUST be after the --dir path, if used.\n" );
    prt( "Any other option beginning with '-' will abort, with a complaint ...\n" );
    mydie( "Any other input    - is ignored ...\n" );
}
sub set_input_dir {
    my $cfg = shift;
    if ( !(($cfg =~ /\/$/) || ($cfg =~ /\\$/)) ) {
        $cfg .= '\\';
    }
    my $fil = $cfg . $def_cfg;
    $src_cfg = $fil;
    $root_dir = $cfg;
    prt( "Using root path [$root_dir] ...\n" );
}
sub parse_arguments {
    my @av = @_;
    my $arg = '';
    while (@av) {
        $arg = $av[0];
        if ($arg eq '--help' || $arg eq '-h' || $arg eq '-?') {
            give_little_help(); # show help and exit
        } elsif ($arg eq '--verbose' || $arg eq '-v') {
            $verbose = 1;
        } elsif ($arg eq '--package' || $arg eq '-p') {
            require_argument(@av);
            shift @av;
            $dsp_package = $av[0];
        } elsif ($arg eq '--lib' || $arg eq '-l') {
            # Create a static library
            $static_lib = 1;
        } elsif ($arg eq '--dir') {
            require_argument(@av);
            shift @av;
            set_input_dir($av[0]);
        } elsif ($arg eq '--check' || $arg eq '-c') {
            $do_check = 1; # perform check and exit
        } elsif ($arg eq '--cfg') {
            require_argument(@av);
            shift @av;
            $src_cfg = $av[0];
        } elsif ($arg eq '-v2' ) {
            $verbose2 = 1;
        } elsif ($arg eq '-v3' ) {
            $verbose3 = 1;
        } elsif ($arg eq '-dbg' ) {
            $verbose = 1;
            $verbose2 = 1;
            $verbose3 = 1;
            $debug_on = 1;
            $debug_on2 = 1;
            $debug_on3 = 1;
            $debug_on4 = 1;
            $debug_on5 = 1;
        } elsif ($arg eq '--groups' || $arg eq '-g') {
            $add_groups = 1; # use original 'group' folders ... 
        } elsif ($arg =~ /^-/) {
            mydie( "$pack: unrecognised option, namely '$arg'\nTry --help or -? for some information.\n" );
        } else {
            # quietly IGNORE other inputs???
        }
        shift @av;
    }
    if ( !( -f $src_cfg) ) {
        if ( -f $def_cfg) {
            prt( "Warning: Unable to locate file [$src_cfg] ...\n" );
            prt( "Using file [$def_cfg], in [".getcwd()."], in its place ...\n" );
            $src_cfg = $def_cfg;
        } else {
            prt("ERROR: Unable to locate file [$src_cfg] ... \ncheck input, and/or folder ...\n");
        }
    }
}
sub add_2_msvc {
    my $flg = shift;
    if ($in_debug) {
        $msvc_dlibs .= $flg;
    } elsif ($in_release) {
        $msvc_rlibs .= $flg;
    } else {
        $msvc_libs .= $flg;
    }
}
sub add_2_libs {
    my $flg = shift;
    if ($in_debug) {
        push(@msvc_dlibs_list, $flg);
    } elsif ($in_release) {
        push(@msvc_rlibs_list, $flg);
    } else {
        push(@msvc_libs_list, $flg);
    }
}
sub add_2_libpaths {
    my $flg = shift;
    if ($in_debug) {
        push(@msvc_dlibs_paths, $flg);
    } elsif ($in_release) {
        push(@msvc_rlibs_paths, $flg);
    } else {
        push(@msvc_libs_paths, $flg);
    }
}
sub read_am2dsprc {
    my $rc_file = shift;
    if ( open( RC_FILE, $rc_file ) ) {
      prt( "Reading config [$rc_file] ...\n" );
   } else {
      prt( "Can't open [$rc_file]: $!\n" );
      return;
   }
    my $line = '';
    my @cond_stack = ();
    while (defined($line = <RC_FILE>)) {
        chomp $line;
        if ($line =~ s/\\$//) {
            # continuation line
            $line .= "%";
            $line .= <RC_FILE>;
            redo unless eof(RC_FILE);
        }
        prt( "Processing line [$line] ...\n" ) if ($debug_on3);
        next if $line =~ /^$/; # ignore blank lines
        next if $line =~ /^#/; # ignore comments
        if ($line =~ /exclude_dir\s*=\s*(\S+)/) {
            push( @excluded_dirs, $1 );
        }
        elsif ($line =~ /exclude_file\s*=\s*(\S+)/) {
            my $f;
            ($f = $1) =~ s/\\/\\\\/g; # escape path separators, "\" -> "\\"
            push( @excluded_files, $f );
            prt( "Excluding file: $f\n" ) if $verbose;
        }
        elsif ($line =~ /include_path\s*=\s*(\S+)/) {
            $msvc_cflags .= " /I \"$1\"";
            push(@msvc_inc_paths, $1);
        }
        elsif ($line =~ /define\s*=\s*(\S+)/) {
            if ($debug_on) {
                if (defined $def_defines{$1} ) {
                    prt( "Got define of $1 ... which is $def_defines{$1} ...\n" );
                    $cfg_defines{$def_defines{$1}} = 1; # add configure.ac 
                } else {
                    prt( "Got define of $1 ...\n" );
                }
                if ( defined $cfg_defines{$1} ) {
                    prt( "Warning: cfg_defines of $1 already defined ...\n" );
                }
            }
            $cfg_defines{$1} = 1;
            $msvc_cflags .= " /D \"$1\"";
        }
        elsif ($line =~ /lib_path\s*=\s*(\S+)/) {
            add_2_msvc( " /libpath:\"$1\"" );
            add_2_libpaths( "$1" );
        }
        elsif ($line =~ /add_lib\s*=\s*(\S+)/) {
            add_2_msvc( " $1.lib" );
            add_2_libs( "$1.lib" );
        }
        elsif ($line =~ /type\s*=\s*(\S+)/) {
            my ($type,$threads,$debug) = split /,/, $1;
            prt( "type=$type, threading=$threads, debug=$debug\n" ) if $verbose;
            if ($type =~ "ConsoleApplication") {
            $static_lib = 0
            }
            elsif ($type =~ "StaticLibrary") {
            $static_lib = 1
            }
            else {
            # Invalid type
            }
            my $flags = " /ML"; # single threaded.
            if ($threads =~ /Multithreaded/) {
            $flags = " /MT";
            }
            elsif ($threads =~ /Singlethreaded/) {
            $flags = " /ML";
            }
            else {
            # Invalid threading option.
            }
            if ($debug =~ /Debug/) {
            $flags .= "d";
            }
            $msvc_cflags .= $flags;
        }
        elsif ($line =~ /add_source_file\s*=\s*(.*)/) {
            my $rule;
            ($rule = $1) =~ s/%/\r\n/g;
            push( @extra_sources, $rule );
        }
        elsif ($line =~ /add_project\s*=\s*(.*)/) {
            push( @extra_projects, $1 );
        }
        elsif ($line =~ /$IF_PATTERN/o) {
            my $ifcond = $1;
            if ($ifcond =~ /Debug/io) {
                prt( "Entering DEBUG ...\n" ) if $verbose2;
                $in_debug = 1;
                $in_release = 0;
            } elsif ($ifcond =~ /Release/io) {
                prt( "Entering RELEASE ...\n" ) if $verbose2;
                $in_release = 1;
                $in_debug = 0;
            } else {
                prt( "EEK! Got $ifcond ...\n" );
                mydie( "Presently ONLY if switch is 'Debug' or 'Release'!\n" );
            }
            push (@cond_stack, "\@" . $ifcond . "_TRUE\@");
        }
        elsif ($line =~ /$ELSE_PATTERN/o) {
            if (! @cond_stack) {
                mydie( "else without if!\n" );
            }
            elsif ($cond_stack[$#cond_stack] =~ /_FALSE\@$/) {
                mydie( "else after an else!\n" );
            } else {
                if ($in_debug) {
                    prt( "Switch to RELEASE ...\n" ) if $verbose2;
                    $in_debug = 0;
                    $in_release = 1;
                } else {
                    prt( "Switch to DEBUG ...\n" ) if $verbose2;
                    $in_debug = 1;
                    $in_release = 0;
                }
                $cond_stack[$#cond_stack] =~ s/_TRUE\@$/_FALSE\@/;
            }
        }
        elsif ($line =~ /$ENDIF_PATTERN/o) {
            if (! @cond_stack) {
                mydie( "endif without if!\n" );
            }
            prt( "Exit $cond_stack[$#cond_stack] ...\n" ) if $verbose2;
            pop (@cond_stack);
            $in_debug = 0;
            $in_release = 0;
        }
    } # end while
    close(RC_FILE);
}
# Ensure argument exists, or die.
sub require_argument
{
    my ($arg, @arglist) = @_;
    mydie( "$pack: no argument given for option '$arg'\n" ) if ! @arglist;
}
sub scan_configure {
    my $ff = $root_dir . 'configure.ac';
   ###prt( "Call scan_one with $ff ...\n" );
    scan_one_configure_file($ff);
    $ff = $root_dir . 'aclocal.m4';
   ###prt( "Call scan_one with $ff ...\n" );
    scan_one_configure_file($ff) if -f $ff;
    if (! @input_files) {
        prt( "Copying " . scalar @make_input_list . " make_input_list to input_files.\n" ) if $verbose2;
        @input_files = @make_input_list;
        %output_files = %make_list;
    } else {
        prt( "input_files has list of " . scalar @input_files . " ...\n" ) if $verbose2;
    }
    if ($verbose2) {
      my $cnt = scalar @input_files;
      prt( "\nOutput of $cnt input_files list ...\n" );
      $cnt = 0;
        foreach $ff (@input_files) {
         $cnt++;
            prt( "$cnt $ff\n" );
        }
      prt( "Done $cnt input_files list ...\n" );
    }
}
sub scan_one_configure_file {
    my $filename = shift;
    prt( "\nScanning config file $filename\n" ) if $dbg1;
    open(CONFIGURE, $filename)
    || mydie( "$pack: can't open '$filename': $!\nCurrently running in $cwdir ...\n" );
    my $in_ac_output = 0;
    my $ac_output_line = '';
    my $ff = '';
    while (<CONFIGURE>) {
    # Remove comments from current line.
    s/\bdnl\b.*$//;
    s/\#.*$//;
        # Skip macro definitions.  Otherwise we might be confused into
        # thinking that a macro that was only defined was actually
        # used.
        next if /AC_DEFUN/;
        # Follow includes.  This is a weirdness commonly in use at
        # Cygnus and hopefully nowhere else.
        if (/sinclude\((.*)\)/ && -f ($root_dir . $1))
        {
            $ff = $root_dir . $1;
            scan_one_configure_file ($ff);
        }
    if (! $in_ac_output && ( s/AC_OUTPUT\s*\(\[?// || s/AC_CONFIG_FILES\s*\(\[?// ) ) {
        $in_ac_output = 1;
        $ac_output_line = $.;
    }
    if ($in_ac_output)
    {
        my $closing = 0;
        if (s/[\]\),].*$//)
        {
            $in_ac_output = 0;
            $closing = 1;
        }
        # Look at potential Makefile.am's
        foreach (split)
        {
            # Must skip empty string for Perl 4.
            next if $_ eq "\\" || $_ eq '';
            my ($local,$input,@rest) = split(/:/);
            if (! $input)
            {
                $input = $local;
            }
            else
            {
                $input =~ s/\.in$//;
            }
            $ff = $root_dir . $input . '.am';
            if (-f $ff)
            {
                prt( "Adding $input [$ff] to make_input_list ...\n" ) if $verbose2;
                push(@make_input_list, $input);
                $make_list{$input} = join(':', ($local,@rest));
            }
            else
            {
                prt( "Adding $input [$ff] to other_input_files ...\n" ) if $verbose2;
                # We have a file that automake should cause to be
                # rebuilt, but shouldn't generate itself.
                push (@other_input_files, $_);
            }
        }
    }
        # Handle configuration headers.  A config header of `[$1]'
        # means we are actually scanning AM_CONFIG_HEADER from
        # aclocal.m4.
        if (/A([CM])_CONFIG_HEADER\s*\((.*)\)/
            && $2 ne '[$1]')
        {
            &am_conf_line_error
                ($filename, $., "\`automake requires \`AM_CONFIG_HEADER', not \`AC_CONFIG_HEADER'")
                    if $1 eq 'C';
            $config_header_line = $.;
            my ($one_hdr);
            foreach $one_hdr (split (' ', $2))
            {
                push (@config_fullnames, $one_hdr);
                if ($one_hdr =~ /^([^:]+):(.+)$/)
                {
                    push (@config_names, $1);
                    push (@config_headers, $2);
                }
                else
                {
                    push (@config_names, $one_hdr);
                    push (@config_headers, $one_hdr . '.in');
                }
            }
        }
    if (/$AM_CONDITIONAL_PATTERN/o)
    {
        if ( defined $cfg_defines{$1} ) {
            # has been DEFINED in am2dsp?.cfg file
            prt( "Storing configure_cond key $1 ... value=2\n" ) if ($debug_on3);
            $configure_cond{$1} = 2;
        } else {
            prt( "Storing configure_cond key $1 ... value=1\n" ) if ($debug_on3);
            $configure_cond{$1} = 1;
        }
    }
    if (/$AM_INIT_AUTOMAKE/o)
    {
        $dsp_package = $1;
        $dsp_version = $2;
    }
    }
    close(CONFIGURE);
}
sub read_main_am_file {
    $am_file = shift;
    read_am_file($am_file);
    my @topdir = ();
    foreach (split(/\//, $relative_dir)) {
        next if $_ eq '.' || $_ eq '';
        if ($_ eq '..') {
            pop @topdir;
        } else {
            push(@topdir, '..');
        }
    }
    @topdir = ('.') if ! @topdir;
    my $top_builddir = join('/', @topdir);
}
sub read_am_file {
    $am_file = shift;
    prt( "\nReading $am_file ...\n" ) if $dbg2;
    open( AM_FILE, $am_file )
    or mydie( "Can't open $am_file: $!\n" );
    my $saw_bk = 0;
    my $was_rule = 0;
    my $spacing = '';
    my $comment = '';
    my $last_var_name = '';
    my $blank = 0;
    my $cond_true = 2; # undetermined ...
   my $curr_tline = '';
    while (<AM_FILE>)
    {
        if (/$IGNORE_PATTERN/o)
        {
            # Merely delete comments beginning with two hashes.
        }
        elsif (/$WHITE_PATTERN/o)
        {
            # Stick a single white line before the incoming macro or rule.
            $spacing = "\n";
            $blank = 1;
        }
        elsif (/$COMMENT_PATTERN/o)
        {
            # Stick comments before the incoming macro or rule.  Make
            # sure a blank line preceeds first block of comments.
            $spacing = "\n" unless $blank;
            $blank = 1;
            $comment .= $spacing . $_;
            $spacing = '';
        }
        else
        {
            last;
        }
    }
    $output_vars .= $comment . "\n";
    $comment = '';
    $spacing = "\n";
    my $source_suffix_pattern = '';
    my $is_ok_macro = 0;
   $curr_tline = trim_all($_);
    while ($_)
    {
        if ($debug_on3) {
            my $aml = $_;
            chomp $aml;
            $aml =~ s/\r$//; # and remove CR, if present
            prt( "$. [$aml]\n" );
        }
        $_ .= "\n"
            unless substr ($_, -1, 1) eq "\n";
        if (/$IGNORE_PATTERN/o)
        {
            # Merely delete comments beginning with two hashes.
        }
        elsif (/$WHITE_PATTERN/o)
        {
            # Stick a single white line before the incoming macro or rule.
            $spacing = "\n";
            &am_line_error ($., "blank line following trailing backslash")
                if $saw_bk;
        }
        elsif (/$COMMENT_PATTERN/o)
        {
            # Stick comments before the incoming macro or rule.
            $comment .= $spacing . $_;
            $spacing = '';
            &am_line_error ($., "comment following trailing backslash")
                if $saw_bk;
        }
        elsif ($saw_bk)
        {
         # continuation of previous line(s) ...
            if ($was_rule)
            {
                $output_trailer .= join ('', @conditional_stack) . $_;
                $saw_bk = /\\$/;
            }
            else
            {
                $saw_bk = /\\$/;
                # Chop newline and backslash if this line is
                # continued.  ensure trailing whitespace exists.
                chop if $saw_bk;
                chop if $saw_bk;
            # decide if to be added to 'contents' ...
            my $add_it = 0; # assume NO
                if ( defined $contents{$last_var_name} ) {
                    if ( @conditional_stack ) {
                        if ( $conditional_stack[$#conditional_stack] =~ /_TRUE\@$/ ) {
                            # we are in the if TRUE state
                            #if ($cond_true == 1) {
                            if ($cond_true > 0) {
                        $add_it = 1;
                     }
                  } else {
                     # we are in a FALSE state
                            #if ($cond_true != 1) {
                            if ($cond_true == 0) {
                        $add_it = 1;
                     }
                  }
               } else { 
                  ###prt( "No conditional stack for this macro! lv=[$last_var_name] ".
                  ###   "add_it\n" ) if ($debug_on3);
                  $add_it = 1; # so add it
               }
            } else { # NO contents for this var
               prt( "NO contents for [$last_var_name]! ".
                  "Technical this is an ERROR, but for now add_it...\n" ) if ($debug_on3);
               $add_it = 1;
            }
            if ($add_it) {
               $contents{$last_var_name} .= ' '
                  unless $contents{$last_var_name} =~ /\s$/;
               $contents{$last_var_name} .= $_;
               if (@conditional_stack)
               {
                  $conditional{$last_var_name} .= &quote_cond_val ($_);
               }
               prt( "End $last_var_name = [".
                  trim_all($contents{$last_var_name})."]...\n" )
                  if ( ! $saw_bk && $debug_on3);
            } else {
               #prt( "Warning: Discarding this [$_] ... CHECK ME!\n" ) if ($debug_on3);
               prt( "Warning: Discarding this [$curr_tline] ... CHECK ME!\n" ) if ($debug_on3);
               my $msg = "CHECK: ";
                   if ( defined $contents{$last_var_name} ) {
                  $msg .= "defined contents $last_var_name ";
                  if ( @conditional_stack ) {
                     $msg .= "cond_true=$cond_true ";
                     if ( $conditional_stack[$#conditional_stack] =~ /_TRUE\@$/ ) {
                        # we are in the if TRUE state
                        $msg .= "TRUE ";
                        #if ($cond_true == 1) {   $add_it = 1; }
                     } else {
                        # we are in a FALSE state
                        $msg .= "FALSE ";
                        #if ($cond_true != 1) { $add_it = 1; }
                     }
                  }
               } else {
                  $msg .= "NOT defined contents $last_var_name ";
               }
               prt( "$msg\n" );
            }
            }
        }
        elsif (/$IF_PATTERN/o)
        {
            if ( defined $configure_cond{$1} ) {
                ###if ( defined $cfg_defines{$1} )
                if ($configure_cond{$1} == 2) {
                    prt( "Found if $1, and condition is TRUE (see cfg_defines) ...\n" ) if ($debug_on3);
                    $cond_true = 1;
                } else {
                    prt( "Found if $1, but NOT in cfg_defines ...\n" ) if ($debug_on3);
                    $cond_true = 0;
                }
            } else {
                &am_line_error ($., "$1 does not appear in AM_CONDITIONAL");
            }
            push (@conditional_stack, "\@" . $1 . "_TRUE\@");
        }
        elsif (/$ELSE_PATTERN/o)
        {
            if (! @conditional_stack)
            {
                &am_line_error ($., "else without if");
            }
            elsif ($conditional_stack[$#conditional_stack] =~ /_FALSE\@$/)
            {
                &am_line_error ($., "else after else");
            }
            else
            {
                $conditional_stack[$#conditional_stack]
                    =~ s/_TRUE\@$/_FALSE\@/;
            }
        }
        elsif (/$ENDIF_PATTERN/o)
        {
            if (! @conditional_stack)
            {
                &am_line_error ($., ": endif without if");
            }
            else
            {
                pop @conditional_stack;
            }
            $cond_true = 2; # undetermined ...
        }
        elsif (/$RULE_PATTERN/o)
        {
            # Found a rule.
            $was_rule = 1;
            if (defined $contents{$1}
                && (@conditional_stack
                ? ! defined $conditional{$1}
                : defined $conditional{$1}))
            {
                &am_line_error ($1,
                        "$1 defined both conditionally and unconditionally");
            }
            # Value here doesn't matter; for targets we only note
            # existence.
            $contents{$1} = 1;
            $targets{$1} = 1;
            my $cond_string = join ('', @conditional_stack);
            if (@conditional_stack)
            {
                if ($conditional{$1})
                {
                    &check_ambiguous_conditional ($1, $cond_string);
                    $conditional{$1} .= ' ';
                }
                else
                {
                    $conditional{$1} = '';
                }
                $conditional{$1} .= $cond_string . ' 1';
            }
            $content_lines{$1} = $.;
            $output_trailer .= $comment . $spacing . $cond_string . $_;
            $comment = $spacing = '';
            $saw_bk = /\\$/;
            # Check the rule for being a suffix rule. If so, store in
            # a hash.
            my $source_suffix;
            my $object_suffix;
            if (($source_suffix, $object_suffix) = ($1 =~ $SUFFIX_RULE_PATTERN)) 
            {
              $suffix_rules{$source_suffix} = $object_suffix;
              prt( "Sources ending in .$source_suffix become .$object_suffix\n" ) if $verbose;
              $source_suffix_pattern = "(" . join('|', keys %suffix_rules) . ")";
            }
            # FIXME: make sure both suffixes are in SUFFIXES? Or set
            # SUFFIXES from suffix_rules?
        }
        elsif (($is_ok_macro = /$MACRO_PATTERN/o)
               || /$BOGUS_MACRO_PATTERN/o)
        {
            prt( "Found a macro definition. 1[$1] 2[$2] 3[$3] ...\n" ) if ($debug_on3);
            $was_rule = 0;
            $last_var_name = $1;
            if (defined $contents{$1}
            && (@conditional_stack
                ? ! defined $conditional{$1}
                : defined $conditional{$1}))
            {
                &am_line_error ($1,
                        "$1 defined both conditionally and unconditionally");
            }
            my $value;
            if ($3 ne '' && substr ($3, -1) eq "\\")
            {
                $value = substr ($3, 0, length ($3) - 1);
            }
            else
            {
                $value = $3;
            }
            my $type = $2;
            if ($type eq '+')
            {
                if (! defined $contents{$last_var_name}
                    && defined $configure_vars{$last_var_name})
                {
                    $contents{$last_var_name} = '@' . $last_var_name . '@';
                }
                $contents{$last_var_name} .= ' ' . $value;
            }
            else
            {
                if ( defined $contents{$last_var_name} ) {
                    if ( @conditional_stack ) {
                        if ( $conditional_stack[$#conditional_stack] =~ /_TRUE\@$/ ) {
                            # we are in the if TRUE state
                            if ($cond_true == 1) {
                                if ($debug_on3) {
                                    if ( $contents{$last_var_name} ne $value ) {
                                        prt( "NB: [$last_var_name] = [$contents{$last_var_name}]" .
                                            " replaced with [$value] (am_file=$am_file line=$.)".
                                 (/\\$/ ? "saw_bk" : "end") . "\n" );
                                    }
                                }
                                $contents{$last_var_name} = $value;
                                $content_lines{$last_var_name} = $.;
                            }
                        } else {
                            # we are in the else FALSE state
                            if ($cond_true != 1) {
                                if ($debug_on3) {
                                    if ( $contents{$last_var_name} ne $value ) {
                                        prt( "NB: [$last_var_name] = [$contents{$last_var_name}]" .
                                            " replaced with [$value] (am_file=$am_file line=$.)".
                                 (/\\$/ ? "saw_bk" : "end") . "\n" );
                                    }
                                }
                                $contents{$last_var_name} = $value;
                                $content_lines{$last_var_name} = $.;
                            }
                        }
                    }
                } else {
                    prt( "First setting [$last_var_name] = [$value] " .
                        "(am_file=$am_file line=$.) ".
                  (/\\$/ ? "saw_bk" : "end") . "\n" ) if ($debug_on3);
                    $contents{$last_var_name} = $value;
                    # The first assignment to a macro sets the line
                    # number.  Ideally I suppose we would associate line
                    # numbers with random bits of text.
                    $content_lines{$last_var_name} = $.;
                }
            }
            my $cond_string = join ('', @conditional_stack);
            if (@conditional_stack)
            {
                my $found = 0;
                my $val;
                if ($conditional{$last_var_name})
                {
                    if ($type eq '+')
                    {
                        # If we're adding to the conditional, and it
                        # exists, then we might want to simply replace
                        # the old value with the new one.
                        my (@new_vals, @cond_vals);
                        @cond_vals = split (' ', $conditional{$last_var_name});
                        while (@cond_vals)
                        {
                            $vcond = shift (@cond_vals);
                            push (@new_vals, $vcond);
                            if (&conditional_same ($vcond, $cond_string))
                            {
                                $found = 1;
                                $val = (&unquote_cond_val (shift (@cond_vals))
                                    . ' ' . $value);
                                push (@new_vals, &quote_cond_val ($val));
                            }
                            else
                            {
                                push (@new_vals, shift (@cond_vals));
                            }
                        }
                        if ($found)
                        {
                            $conditional{$last_var_name}
                                = join (' ', @new_vals);
                        }
                    }
                    if (! $found)
                    {
                        &check_ambiguous_conditional ($last_var_name,
                                          $cond_string);
                        $conditional{$last_var_name} .= ' ';
                        $val = $value;
                    }
                }
                else
                {
                    $conditional{$last_var_name} = '';
                    $val = $contents{$last_var_name};
                }
                if (! $found)
                {
                    $conditional{$last_var_name} .= ($cond_string
                                     . ' '
                                     . &quote_cond_val ($val));
                }
            }
            # FIXME: this doesn't always work correctly; it will group
            # all comments for a given variable, no matter where
            # defined.
            $am_vars{$last_var_name} = $comment . $spacing;
            $def_type{$last_var_name} = ($type eq ':') ? ':' : '';
            push (@var_list, $last_var_name);
            $comment = $spacing = '';
            $saw_bk = /\\$/;
            # Error if bogus.
            &am_line_error ($., "bad macro name \`$last_var_name'")
                if ! $is_ok_macro;
        }
        elsif (/$INCLUDE_PATTERN/o)
        {
                my ($path) = $1;
                if ($path =~ s/^\$\(top_srcdir\)\///)
                {
                    push (@include_stack, "\$\(top_srcdir\)/$path");
                }
                else
                {
                    $path =~ s/\$\(srcdir\)\///;
                    push (@include_stack, "\$\(srcdir\)/$path");
                    $path = $relative_dir . "/" . $path;
                }
                &read_am_file ($path);
        }
        else
        {
            # This isn't an error; it is probably a continued rule.
            # In fact, this is what we assume.
            $was_rule = 1;
            $output_trailer .= ($comment . $spacing
                    . join ('', @conditional_stack) . $_);
            $comment = $spacing = '';
            $saw_bk = /\\$/;
        }
        $_ = <AM_FILE>;
      $curr_tline = trim_all($_);
    }
    close(AM_FILE);
    $output_trailer .= $comment;
    &am_error ("unterminated conditionals: " . join (' ', @conditional_stack))
    if (@conditional_stack);
}
sub initialize_per_input {
    # These two variables are used when generating each Makefile.in.
    # They hold the Makefile.in until it is ready to be printed.
    $output_vars = '';
    $output_trailer = '';
    # This holds the contents of a Makefile.am, as parsed by
    # read_am_file.
    %contents = ();
    # This holds the names which are targets.  These also appear in
    # %contents.
    %targets = ();
    # For a variable or target which is defined conditionally, this
    # holds an array of the conditional values.  The array is composed
    # of pairs of condition strings (the variables which configure
    # will substitute) and values (the value of a target is
    # meaningless).  For an unconditional variable, this is empty.
    %conditional = ();
    # This holds the line numbers at which various elements of
    # %contents are defined.
    %content_lines = ();
    # This holds a 1 if a particular variable was examined.
    %content_seen = ();
    # This is the conditional stack.
    @conditional_stack = ();
    # This holds the set of included files.
    @include_stack = ();
    # This holds the "relative directory" of the current Makefile.in.
    # Eg for src/Makefile.in, this is "src".
    $relative_dir = '';
    # This maps the source extension of a suffix rule to its
    # corresponding output extension.
    %suffix_rules = ();
}
# Quote a value in order to put it in $conditional.  We need to quote
# spaces, and we need to handle null strings, so that we can later
# retrieve values by splitting on space.
sub quote_cond_val
{
    my ($val) = @_;
    $val =~ s/ /\001/g;
    $val =~ s/\t/\003/g;
    $val = "\002" if $val eq '';
    return $val;
}
# this function seems MISSING!
sub unquote_cond_val {
    my ($val) = @_;
    $val =~ s/\001/ /g;
    $val =~ s/\003/\t/g;
    $val = '' if $val eq "\002";
    return $val;
}
# this function seems MISSING
#  if (&conditional_same ($vcond, $cond_string))
sub conditional_same
{
    my ($cond, $when) = @_;
   if ($when =~ $cond) {
      return 1;
   }
   return 0;
}
# See if a conditional is true.  Both arguments are conditional
# strings.  This returns true if the first conditional is true when
# the second conditional is true.
sub conditional_true_when
{
    my ($cond, $when) = @_;
    # Check the easy case first.
    if ($cond eq $when)
    {
    return 1;
    }
    # Check each component of $cond, which looks @COND1@@COND2@.
    foreach my $comp (split ('@', $cond))
    {
    # The way we split will give null strings between each
    # condition.
    next if ! $comp;
    if (index ($when, '@' . $comp . '@') == -1)
    {
        return 0;
    }
    }
    return 1;
}
# Check for an ambiguous conditional.  This is called when a variable
# or target is being defined conditionally.  If we already know about
# a definition that is true under the same conditions, then we have an
# ambiguity.
sub check_ambiguous_conditional
{
    my ($var_name, $cond) = @_;
    my (@cond_vals) = split (' ', $conditional{$var_name});
    while (@cond_vals)
    {
    my ($vcond) = shift (@cond_vals);
    shift (@cond_vals);
    if (&conditional_true_when ($vcond, $cond)
        || &conditional_true_when ($cond, $vcond))
    {
        prt( "$var_name multiply defined in condition\n" );
    }
    }
}
sub am_error {
    my $msg = shift;
    push(@warnings, $msg );
   prt( "$msg\n" );
}
sub am_line_error
{
    my ($symbol, @args) = @_;
    prt( "am_line_error: am_file=[$am_file] sym=[$symbol] arg0=[$args[0]] ...\n" ) if ($debug_on3);
    if ($symbol && "$symbol" ne '-1')
    {
    my ($file) = "${am_file}";
    if ($symbol =~ /^\d+$/)
    {
        # SYMBOL is a line number, so just add the colon.
        $file .= ':' . $symbol;
    }
    elsif (defined $content_lines{$symbol})
    {
        # SYMBOL is a variable defined in Makefile.am, so add the
        # line number we saved from there.
        $file .= ':' . $content_lines{$symbol};
    }
    elsif (defined $configure_vars{$symbol})
    {
        # SYMBOL is a variable defined in configure.ac, so add the
        # appropriate line number.
        $file = $configure_vars{$symbol};
    }
    else
    {
        # Couldn't find the line number.
    }
    warn $file, ": ", join (' ', @args), "\n";
    $exit_status = 1;
    }
    else
    {
    &am_error (@args);
    }
}
sub generate_dsw
{
    my $name = shift;
    my $dsw_name = $root_dir . $name . '.dsw';
    open(DSW, ">$dsw_name")
    || mydie( "Can't create $dsw_name: $!\n" );
    prt( "Creating $dsw_name\n" ) if $verbose;
    print DSW <<"EOF";
Microsoft Developer Studio Workspace File, Format Version 6.00\r
# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!\r
\r
###############################################################################\r
\r
EOF
    print DSW 'Project: ', "\"$name\"=\".\\", $name, ".dsp\" - Package Owner=<4>\r\n";
    print DSW <<"EOF";
\r
Package=<5>\r
{{{\r
}}}\r
\r
Package=<4>\r
{{{\r
}}}\r
\r
EOF
    foreach my $p (@extra_projects) {
    print DSW "###############################################################################\r\n\r\n";
    my ($dsp,$name) = split ',', $p;
    prt( "Project $name=$dsp\n" ) if $verbose;
    print DSW "Project: \"$name\"=\"$dsp\" - Package Owner=<4>\r\n\r\n";
    print DSW <<"EOF";
Package=<5>\r
{{{\r
}}}\r
\r
Package=<4>\r
{{{\r
}}}\r
\r
EOF
    }
    print DSW <<"EOF";
###############################################################################\r
\r
Global:\r
\r
Package=<5>\r
{{{\r
}}}\r
\r
Package=<3>\r
{{{\r
}}}\r
\r
###############################################################################\r
\r
EOF
    close(DSW);
}
sub expand_here {
    local $_ = shift;
    s/\%cflags\%/$msvc_cflags/g;
    s/\%libs\%/$msvc_libs/g;
    s/\%dlibs\%/$msvc_dlibs/g;
    s/\%rlibs\%/$msvc_rlibs/g;
    return $_;
}
sub console_app_dsp_init
{
    my $name = shift;
    my $dsp_name = $root_dir . $name . '.dsp';
    open(DSP, ">$dsp_name")
    || mydie( "Can't create $dsp_name: $!\n" );
    prt( "Creating $dsp_name\n" ) if $verbose;
    print DSP expand_here(<<"EOF");
# Microsoft Developer Studio Project File - Name="$name" - Package Owner=<4>\r
# Microsoft Developer Studio Generated Build File, Format Version 6.00\r
# ** DO NOT EDIT **\r
\r
# TARGTYPE "Win32 (x86) Console Application" 0x0103\r
\r
CFG=$name - Win32 Debug\r
!MESSAGE This is not a valid makefile. To build this project using NMAKE,\r
!MESSAGE use the Export Makefile command and run\r
!MESSAGE \r
!MESSAGE NMAKE /f "$name.mak".\r
!MESSAGE \r
!MESSAGE You can specify a configuration when running NMAKE\r
!MESSAGE by defining the macro CFG on the command line. For example:\r
!MESSAGE \r
!MESSAGE NMAKE /f "$name.mak" CFG="$name - Win32 Debug"\r
!MESSAGE \r
!MESSAGE Possible choices for configuration are:\r
!MESSAGE \r
!MESSAGE "$name - Win32 Release" (based on "Win32 (x86) Console Application")\r
!MESSAGE "$name - Win32 Debug" (based on "Win32 (x86) Console Application")\r
!MESSAGE \r
\r
# Begin Project\r
# PROP AllowPerConfigDependencies 0\r
# PROP Scc_ProjName ""\r
# PROP Scc_LocalPath ""\r
CPP=cl.exe\r
RSC=rc.exe\r
\r
!IF  "\$(CFG)" == "$name - Win32 Release"\r
\r
# PROP Use_MFC 0\r
# PROP Use_Debug_Libraries 0\r
# PROP Output_Dir "Release"\r
# PROP Intermediate_Dir "Release"\r
# PROP Target_Dir ""\r
# ADD CPP /nologo /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FD /c %cflags%\r
# SUBTRACT CPP /YX\r
# ADD RSC /l 0xc09 /d "NDEBUG"\r
BSC32=bscmake.exe\r
# ADD BSC32 /nologo\r
LINK32=link.exe\r
# ADD LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ws2_32.lib /nologo /subsystem:console /machine:I386 %libs% %rlibs%\r
\r
!ELSEIF  "\$(CFG)" == "$name - Win32 Debug"\r
\r
# PROP Use_MFC 0\r
# PROP Use_Debug_Libraries 1\r
# PROP Output_Dir "Debug"\r
# PROP Intermediate_Dir "Debug"\r
# PROP Ignore_Export_Lib 0\r
# PROP Target_Dir ""\r
# ADD CPP /nologo /W3 /Gm /GX /ZI /Od /D "_DEBUG" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FR /FD /GZ /c %cflags%\r
# ADD RSC /l 0xc09 /d "_DEBUG"\r
BSC32=bscmake.exe\r
# ADD BSC32 /nologo\r
LINK32=link.exe\r
# ADD LINK32 kernel32.lib user32.lib winspool.lib comdlg32.lib gdi32.lib shell32.lib advapi32.lib ws2_32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept %libs% %dlibs%\r
\r
!ENDIF \r
\r
# Begin Target\r
\r
# Name "$name - Win32 Release"\r
# Name "$name - Win32 Debug"\r
EOF
    close(DSP);
}
sub static_lib_dsp_init
{
    my $name = shift;
    my $dsp_name = $root_dir . $name . '.dsp';
    open(DSP, ">$dsp_name")
    || mydie( "Can't create $dsp_name: $!\n" );
    prt( "Creating $dsp_name\n" ) if $verbose;
    print DSP expand_here(<<"EOF");
# Microsoft Developer Studio Project File - Name="$name" - Package Owner=<4>\r
# Microsoft Developer Studio Generated Build File, Format Version 6.00\r
# ** DO NOT EDIT **\r
\r
# TARGTYPE "Win32 (x86) Static Library" 0x0104\r
\r
CFG=$name - Win32 Debug\r
!MESSAGE This is not a valid makefile. To build this project using NMAKE,\r
!MESSAGE use the Export Makefile command and run\r
!MESSAGE \r
!MESSAGE NMAKE /f "$name.mak".\r
!MESSAGE \r
!MESSAGE You can specify a configuration when running NMAKE\r
!MESSAGE by defining the macro CFG on the command line. For example:\r
!MESSAGE \r
!MESSAGE NMAKE /f "$name.mak" CFG="$name - Win32 Debug"\r
!MESSAGE \r
!MESSAGE Possible choices for configuration are:\r
!MESSAGE \r
!MESSAGE "$name - Win32 Release" (based on "Win32 (x86) Static Library")\r
!MESSAGE "$name - Win32 Debug" (based on "Win32 (x86) Static Library")\r
!MESSAGE \r
\r
# Begin Project\r
# PROP AllowPerConfigDependencies 0\r
# PROP Scc_ProjName ""\r
# PROP Scc_LocalPath ""\r
CPP=cl.exe\r
RSC=rc.exe\r
\r
!IF  "\$(CFG)" == "$name - Win32 Release"\r
\r
# PROP Use_MFC 0\r
# PROP Use_Debug_Libraries 0\r
# PROP Output_Dir "Release"\r
# PROP Intermediate_Dir "Release"\r
# PROP Target_Dir ""\r
# ADD CPP /nologo /W3 /GX /O2 /D "NDEBUG" /D "WIN32" /D "_MBCS" /FD /c %cflags%\r
# ADD RSC /l 0x409 /d "NDEBUG"\r
BSC32=bscmake.exe\r
# ADD BASE BSC32 /nologo\r
# ADD BSC32 /nologo\r
LINK32=link.exe -lib\r
# ADD BASE LIB32 /nologo\r
# ADD LIB32 /nologo\r
\r
!ELSEIF  "\$(CFG)" == "$name - Win32 Debug"\r
\r
# PROP Use_MFC 0\r
# PROP Use_Debug_Libraries 1\r
# PROP Output_Dir "Debug"\r
# PROP Intermediate_Dir "Debug"\r
# PROP Target_Dir ""\r
# ADD CPP /nologo /W3 /GX /ZI /Od /D "_DEBUG" /D "WIN32" /D "_MBCS" /FR /FD /GZ /c %cflags%\r
# ADD RSC /l 0x409 /d "_DEBUG"\r
BSC32=bscmake.exe\r
# ADD BASE BSC32 /nologo\r
# ADD BSC32 /nologo\r
LINK32=link.exe -lib\r
# ADD BASE LIB32 /nologo\r
# ADD LIB32 /nologo\r
\r
!ENDIF \r
\r
# Begin Target\r
\r
# Name "$name - Win32 Release"\r
# Name "$name - Win32 Debug"\r
EOF
    close(DSP);
}
sub dsp_add_source_rule {
    my ($fh,$dsp_name,$group,$file,$dup) = @_;
    print $fh "# Begin Source File\r\n";
    print $fh "\r\n";
    print $fh "SOURCE=$file\r\n";
    if ($add_groups) {
        print $fh "\r\n";
        print $fh "!IF  \"\$(CFG)\" == \"$dsp_name - Win32 Release\"\r\n";
        print $fh "\r\n";
        print $fh "# PROP Intermediate_Dir \"Release\\$group\"\r\n";
        print $fh "# PROP Exclude_From_Build 1\r\n" if exclude_file($file);
        print $fh "\r\n";
        print $fh "!ELSEIF  \"\$(CFG)\" == \"$dsp_name - Win32 Debug\"\r\n";
        print $fh "\r\n";
        print $fh "# PROP Intermediate_Dir \"Debug\\$group\"\r\n";
        print $fh "# PROP Exclude_From_Build 1\r\n" if exclude_file($file);
        print $fh "\r\n";
        print $fh "!ENDIF \r\n";
        print $fh "\r\n";
    } elsif ($dup) {
        add_dupes_dir( \*$fh, $dsp_name );
    }
    print $fh "# End Source File\r\n";
}
sub dsp_add_group {
    my ($dsp_name,$makefile) = @_;
    my $base_dir = './';
    my $dsp_file = $root_dir . $dsp_name .'.dsp';
    prt( "dsp_add_group: using dsp_name=$dsp_file, and makefile=$makefile ...\n" ) if $verbose2;
    initialize_per_input();
    my $relative_dir = dirname($makefile);
    my $dupe = 0;
    my @files = ();
    my $key = '';
    my $group = 'Lib_Special';
    my $file = '';
    read_main_am_file($root_dir . $makefile . '.am');
   # output the content found
   prt( "List of CONTENTS keys ...\n" ) if ($dbg3);
   foreach $key (keys %contents) {
      $file = trim_all($contents{$key});
      if ($key =~ /(.+)_SOURCES$/) {
         prt( "SOURCES: $1 = $file\n" ) if ($dbg3);
         push(@sources, [$1, $file]);
      } elsif ($key =~ /^SRCS_(.+)/) {
         prt( "SRCS: $1 = $file\n" ) if ($dbg3);
         push(@sources2, [$1, $file]);
      } else {
         prt( "$key = $file\n" ) if ($dbg3);
      }
   }
   prt( "DONE List of CONTENTS keys ...\n" ) if ($dbg3);
    # preview the 'contents' to find 'group'
    # use 'noinst_LIBRARIES' macro
    foreach $key (keys %contents) {
        if ($key eq 'noinst_LIBRARIES') {
            @files = split(' ', $contents{$key});
            foreach $file (@files) {
                if ($file =~ /^lib([\w-]+)\.a/) {
                    $group = 'Lib_' . $1;
                    prt( "Group set to [$group] ...\n" ) if ($debug_on3);
                    last;
                }
            }
        }
    }
    # now extract SOURCES from 'contents' hash
    foreach $key (sort keys %contents) {
        #if ($key eq "include_HEADERS") {
        #} # not found in Makefile.am files?
        if ($key =~ /^lib(.*)_a_SOURCES/) {
            $group = 'Lib_' . $1;
            @files = split(' ', $contents{$key});
            foreach (@files) {
                my $src_dir = $base_dir . $relative_dir . '/';
                $src_dir =~ s/\//\\/g; # fixup DOS path separators
                if (/^\$\(([^\)]*)\)$/) {
                    # Found a variable.
                    my $varname = $1;
                    prt( "Expanding variable $varname ...\n" ) if ($debug_on3);
                    foreach (split(' ', $contents{$varname})) {
                        $file = $src_dir . $_;
                        $dupe = add_2_source_list( $file, $group );
                    }
                    prt( "Done expanding variable $varname ...\n" ) if ($debug_on3);
                } else {
                    $file = $src_dir . $_;
                    $dupe = add_2_source_list( $file, $group );
                }
            }
        }
        #elsif ($key =~ /(.*)_SOURCES/) {
        elsif ($key eq "fgfs_SOURCES") {
            $group = 'main';
            @files = split(' ', $contents{$key});
            foreach (@files) {
                my $src_dir = $base_dir . $relative_dir . '/';
                $src_dir =~ s/\//\\/g; # fixup DOS path separators
                $file = $src_dir . $_;
                $dupe = add_2_source_list( $file, $group );
            }
        } else {
            # key is NOT ( Lib(.*)_a_SOURCES fgfs_SOURCES )
            if (($key eq 'EXTRA_DIST')||($key eq 'fgjs_SOURCES')) {
                @files = split(' ', $contents{$key});
                foreach my $fi (@files) {
                    my $ext = file_extension($fi);
                    $file = $base_dir . $relative_dir . '/' . $fi;
                    $file =~ s/\//\\/g; # use DOS path sep
                    if (is_c_source_ext($ext)) {
                        push(@msvc_c_extra, $file);
                        prt( "Added [$file] to C EXTRA list\n" ) if $verbose2;
                    } elsif (is_h_source_ext($ext)) {
                        push(@msvc_h_extra, $file);
                        prt( "Added [$file] to H EXTRA list\n" ) if $verbose2;
                    } else {
                        push(@msvc_o_extra, $file);
                        prt( "Added [$file] to other EXTRA list\n" ) if $verbose2;
                    }
                }
            } elsif ($key eq 'noinst_HEADERS') {
                # JSBSim has put the HEADERS in HERE
                @files = split(' ', $contents{$key});
                foreach (@files) {
                    $file = $base_dir . $relative_dir . '/' . $_;
                    $file =~ s/\//\\/g; # use DOS path sep
                    $dupe = add_2_source_list( $file, $group );
                }
            } 
        }
    }
}
sub dsp_finish {
    my $dsp_name = shift;
    my $dsp_file = $root_dir . $dsp_name . '.dsp';
    open(DSP, ">>$dsp_file")
    || mydie( "Can't append to $dsp_file: $!\n" );
    foreach my $r (@extra_sources) {
        print DSP "# Begin Source File\r\n\r\n";
        print DSP "$r\r\n";
        print DSP "# End Source File\r\n";
    }
    print DSP "# End Target\r\n";
    print DSP "# End Project\r\n";
    close(DSP);
}
# Return directory name of file.
sub dirname
{
    my ($file) = @_;
    my ($sub);
    ($sub = $file) =~ s,/+[^/]+$,,g;
    $sub = '.' if $sub eq $file;
    return $sub;
}
sub add_2_used_libs {
    my ($fil,$in) = @_;
    if (exists( $used_lib_paths{$in} ) ) {
        my @incs = split(/\|/ , $used_lib_paths{$in});
        my $got = 0;
        foreach my $i (@incs) {
            if ($i eq $fil) {
                $got = 1;
                last;
            }
        }
        if ( ! $got ) {
            $used_lib_paths{$in} .= '|'.$fil; # add new
        }
    } else {
        $used_lib_paths{$in} = $fil; # set first
    }
}
sub check_lib_paths {
    my $fil = shift;
    my $inc = '';
    my $ff = '';
    my $finc = '';
    my $fincr = '';
    my $fincd = '';
    my $found1 = 0;
    my $found2 = 0;
    my $found3 = 0;
    foreach $inc (@msvc_libs_paths) {
        $ff = $root_dir . $inc;
        if ( !(($ff =~ /\/$/) || ($ff =~ /\\$/)) ) {
            $ff .= '\\';
        }
        $ff .= $fil;
        if( -f $ff ) {
            $finc = $inc;
            $found1 = 1;
            last;
        }
    }
    foreach $inc (@msvc_rlibs_paths) {
        $ff = $root_dir . $inc;
        if ( !(($ff =~ /\/$/) || ($ff =~ /\\$/)) ) {
            $ff .= '\\';
        }
        $ff .= $fil;
        if( -f $ff ) {
            $fincr = $inc;
            $found2 = 1;
            last;
        }
    }
    foreach $inc (@msvc_dlibs_paths) {
        $ff = $root_dir . $inc;
        if ( !(($ff =~ /\/$/) || ($ff =~ /\\$/)) ) {
            $ff .= '\\';
        }
        $ff .= $fil;
        if( -f $ff ) {
            $fincd = $inc;
            $found3 = 1;
            last;
        }
    }
    if( $found1 || $found2 || $found3 ) {
        prt( "Found [$fil] in [$finc] [$ff] ...\n" ) if ($verbose2 && $found1);
        prt( "Found [$fil] in [$fincr] [$ff] ...\n" ) if ($verbose2 && $found2);
        prt( "Found [$fil] in [$fincd] [$ff] ...\n" ) if ($verbose2 && $found3);
        add_2_used_libs( $fil, $finc ) if $found1;
        add_2_used_libs( $fil, $fincr ) if $found2;
        add_2_used_libs( $fil, $fincd ) if $found3;
    } else {
        prt( "WARNING: Unable to locate $fil ...\n" ) if $verbose2;
    }
    return ($found1 + $found2 + $found3);
}
sub check_inc_paths {
    my $fil = shift;
    my $inc = '';
    my $ff = '';
    my $found = 0;
    if( ! $found ) {
        foreach $inc (@msvc_inc_paths) {
            $ff = $root_dir . $inc;
            if ( !(($ff =~ /\/$/) || ($ff =~ /\\$/)) ) {
                $ff .= '\\';
            }
            $ff .= $fil;
            ### print "Checking for $fil in $ff ...\n" if $verbose9;
            if( -f $ff ) {
                if (exists( $used_inc_paths{$inc} ) ) {
                    my @incs = split(/\|/ , $used_inc_paths{$inc});
                    my $got = 0;
                    foreach my $i (@incs) {
                        if ($i eq $fil) {
                            $got = 1;
                            last;
                        }
                    }
                    if ( ! $got ) {
                        $used_inc_paths{$inc} .= '|'.$fil; # add new
                    }
                } else {
                    $used_inc_paths{$inc} = $fil; # set first
                }
                $found = 1;
                last;
            }
        }
    }
    if( $found ) {
        prt( "Found $fil in $inc [$ff] ...\n" ) if $verbose2;
    } else {
        prt( "WARNING: Unable to locate $fil ...\n" ) if $verbose2;
    }
    return $found;
}
sub show_lib_found {
    my (@arr) = @_;
    foreach my $in (@arr) {
        if (exists( $used_lib_paths{$in} ) ) {
            my @ip = split(/\|/, $used_lib_paths{$in});
            prt( "On path [$root_dir][$in] found ".scalar @ip." items ...\n" );
            my $cntr = 0;
            $in .= '\\' if !($in =~ /(\\|\/)$/);
            foreach my $f (@ip) {
                $cntr++;
                prt( "$cntr ".$root_dir.$in.$f."\n" );
            }
        } else {
            prt( "Warning: Found nothing on [$root_dir][$in] ...\n" );
        }
    }
}
# some simple utility functions
sub pos_of_last_slash {
    my $fil = shift;
    my $in1 = rindex( $fil, '/' );
    my $in2 = rindex( $fil, '\\' );
    my $pos = -1;
    # if BOTH exist
    if (($in1 >= 0) && ($in2 >= 0)) {
        # get the LAST
        if ($in1 > $in2) {
            $pos = $in1;
        } else {
            $pos = $in2;
        }
    } elsif ($in1 >= 0 ) {
        $pos = $in1;
    } elsif ($in2 >= 0 ) {
        $pos = $in2;
    }
    return $pos;
}
sub file_extension {
    my $fil = shift;
    my $pos = pos_of_last_slash($fil);
    my $last = rindex( $fil, '.' );
    my $ext = '';
    if ( $last >= 0 ) {
        if ($pos >= 0) {
            if ($last > $pos) {
                $ext = substr($fil, $last + 1);
            }
        } else {
            $ext = substr($fil, $last + 1);
        }
    }
    return $ext;
}
sub file_title {
    my $fil = shift;
    my $pos = pos_of_last_slash($fil);
    my $last = rindex( $fil, '.' );
    my $tit = '';
    if ($last >= 0) {
        if ($pos >= 0) {
            if ($last > $pos) {
                ###print "Using 1 substr( $fil, $pos+1, $last - $pos - 1 ) ...\n"; 
                $tit = substr( $fil, $pos+1, $last - $pos - 1 ); 
            } else {
                ###print "Using 2 substr( $fil, $pos+1 ) ...\n"; 
                $tit = substr( $fil, $pos+1 ); 
            }
        } else {
            ###print "Using 3 substr( $fil, 0, $last ) ...\n"; 
            $tit = substr( $fil, 0, $last ); 
        }
    } elsif ($pos >= 0) {
        ###print "Using 4 substr( $fil, $pos+1 ) ...\n"; 
        $tit = substr( $fil, $pos+1 ); 
    } else {
        ###print "Using 5 no slash, no dot ...\n"; 
        $tit = $fil;
    }
    return $tit;
}
sub is_c_source_ext {
    my $fil = shift;
    my $fe = lc($fil);
    if (($fe eq 'c')||($fe eq 'cxx')||($fe eq 'cpp')) {
        return 1;
    }
    return 0;
}
sub is_h_source_ext {
    my $fil = shift;
    my $fe = lc($fil);
    if (($fe eq 'h')||($fe eq 'hxx')||($fe eq 'hpp')) {
        return 1;
    }
    return 0;
}
sub add_2_source_list {
    my ($fil, $grp) = @_;
    my $fe = file_extension($fil);
    my $ft = lc(file_title($fil));
    my $src = ($grp . '|' . $fil . '|' . $ft);
    my $ret = 0;
    ###if (($fe eq 'c')||($fe eq 'cxx')||($fe eq 'cpp')) {
    if ( is_c_source_ext($fe) ) {
        prt( "Add $src to C list\n" ) if $verbose2;
        push(@msvc_c_files, $src);
        foreach my $tt (@msvc_titles) {
            # just to deal with duplicate names
            if( $tt eq $ft ) {
                $ret = 1;
                last;
            }
        }
        push(@msvc_titles, $ft);
    } else {
        prt( "Add $src to H list\n" ) if $verbose2;
        push(@msvc_h_files, $src);
    }
    return $ret;
}
sub add_dupes_dir {
    my ($fh, $pack) = @_;
    print $fh "\r\n";
    print $fh "!IF  \"\$(CFG)\" == \"$pack - Win32 Release\"\r\n";
    print $fh "\r\n";
    print $fh "# PROP Intermediate_Dir \"Release\\Dupes\"\r\n";
    print $fh "\r\n";
    print $fh "!ELSEIF  \"\$(CFG)\" == \"$pack - Win32 Debug\"\r\n";
    print $fh "\r\n";
    print $fh "# PROP Intermediate_Dir \"Debug\\Dupes\"\r\n";
    print $fh "\r\n";
    print $fh "!ENDIF\r\n"; 
    print $fh "\r\n";
}
sub write_new_dsp {
    ###my $new_pack = 'FGFS';
    my $new_pack = $dsp_package;
    my $src;
    my $dsp_file = $root_dir . $new_pack .'.dsp';
    my @bits = ();
    my @done = ();
    my $group = '';
    my $pgrp = '';
    my $tit = '';
    my $isdupe = 0;
    if ($static_lib) {
        static_lib_dsp_init($new_pack);
    } else {
        console_app_dsp_init($new_pack);
    }
   prt( "Appending to [$dsp_file] ...\n" );
    open(DSP, ">>$dsp_file") || mydie( "Can't append to $dsp_file: $!\n" );
    if ( ! $add_groups) {
        print DSP "# Begin Group \"Source Files\"\r\n";
        print DSP "\r\n";
        print DSP "# PROP Default_Filter \"cpp;c;cxx;rc;def;r;odl;idl;hpj;bat\"\r\n";
    }
    foreach $src (@msvc_c_files) {
        prt( "Processing $src from array ...\n" ) if $verbose2;
        @bits = split( /\|/, $src ); # get file title, name and group
        $group = 'Lib_' . $bits[0];
        $tit = $bits[2];
        $isdupe = 0;
        if ($add_groups && ($group ne $pgrp)) {
            print DSP "# Begin Group \"$group\"\r\n";
            print DSP "\r\n";
            print DSP "# PROP Default_Filter \"\"\r\n";
        } else {
            # not adding groups, check duplicate names
            foreach my $tt (@done) {
                if( $tt eq $tit ) {
                    $isdupe = 1;
                    last;
                }
            }
        }
        dsp_add_source_rule(\*DSP, $new_pack, $group, $bits[1], $isdupe);
        if ( !$add_groups && $isdupe) {
            prt( "Processed a DUPLICATE $tit from array ...\n" ) if $verbose2;
            prt( "Bits = ".$bits[0]."|".$bits[1].'|'.$bits[2]. " ...\n" ) if $verbose2;
        }
        push(@done, $tit);
        if ($add_groups && ($group ne $pgrp)) {
            print DSP "# End Group\r\n";
        }
        $pgrp = $group;
    }
    if ( !$add_groups) {
        print DSP "# End Group\r\n";
    }
    # just the HEADER files
    print DSP "# Begin Group \"Header Files\"\r\n";
    print DSP "\r\n";
    print DSP "# PROP Default_Filter \"h;hpp;hxx;hm;inl\"\r\n";
    my $savgrp = $add_groups;
    $add_groups = 0;
    foreach $src (@msvc_h_files) {
        @bits = split( /\|/, $src ); # get file title, name and group
        $group = 'Lib_' . $bits[2];
        dsp_add_source_rule(\*DSP, $new_pack, $group, $bits[1], 0);
    }
    print DSP "# End Group\r\n";
    close(DSP);
    $add_groups = $savgrp;
    dsp_finish($new_pack);
    generate_dsw($new_pack);
    prt( "Done ".$root_dir.$new_pack." DSP and DSW files ...\n" );
}
# eof - am2list01.pl

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