# Wolfenstein top-level Construct
#
# Sep. 2001 TTimo <ttimo@idsoftware.com>
#

# the top directory is
# <config>-<cpu>-<OS>-<libc version>
# where:
#   <config> is "debug" or "release"
#   <cpu> is "x86" or "ppc"
#   <OS> is "Linux" "BSD" "IRIX" etc.
#   <libc version> is major.minor of libc config

# parse command line arguments and do the setup

# defaults
$config = 'debug';
$do_setup = 0;
$do_demo = 0;
$do_info = 0;

# compiler
$CC='gcc -m32';
$CXX='g++ -m32';
$LINK=$CXX;

# detection of CPU type
$cpu = `uname -m`;
chop ($cpu);
if ($cpu +~ /i?86/)
{
  $cpu = 'x86';
}
# OS
$OS = `uname`;
chop ($OS);
# libc .. do the little magic!
$libc_cmd = '/lib/libc.so.6 |grep "GNU C "|grep version|awk -F "version " \'{ print $2 }\'|cut -b -3';
$libc = `$libc_cmd`;
chop ($libc);

if(@ARGV gt 0)
{
  foreach $cmdopt (@ARGV)
  {
    if(lc($cmdopt) eq 'release')
    {
      $config = 'release';
      next;
    }
    elsif(lc($cmdopt) eq 'debug')
    {
      $config = 'debug';
      next;
    }
    elsif(lc($cmdopt) eq 'setup')
    {
      $do_setup = 1;
      next;
    }
    elsif(lc($cmdopt) eq 'demo')
    {
      $do_demo = 1;
      next;
    }
    elsif(lc($cmdopt) eq 'info')
    {
      $do_info = 1;
      next;
    }
    else
    {
      # output an error & exit
      print("Error\n  $0: Unknown command line option: [ $cmdopt ]\n");
      system("cons -h");
      exit;
    }
  }
}

# build the config directory
$CONFIG_DIR = $config . '-' . $cpu . '-' . $OS . '-' . $libc;
if ($do_demo eq 1)
{
  $CONFIG_DIR = $CONFIG_DIR . '-demo';
}

if ($do_info eq 1)
{
  print "$CONFIG_DIR\n";
  exit;
}

# this is a safety, avoid releasing any setup with all debugging symbols :-)
if (($do_setup eq 1) && ($do_demo eq 1) && ($config ne 'release'))
{
  print "Forcing release build for setup build\n";
  $config = 'release';
}

if ($do_demo eq 1)
{
  $COMMON_CFLAGS = '-pipe -fsigned-char -DWOLF_SP_DEMO ';
  $BASEGAME = 'demomain';
}
else
{
  $COMMON_CFLAGS = '-pipe -fsigned-char ';
  $BASEGAME = 'main';
}

# NOTE TTimo using -fshort-enums increases warnings on enum issues
#   this is for debugging and QA ONLY, the flag has ABI issues (OpenGL headers)
#$COMMON_CFLAGS = $COMMON_CFLAGS . '-fshort-enums ';

if ($config eq 'debug')
{
  # NOTE TTimo using -Werror on debug build for QA
  #$BASE_CFLAGS = $COMMON_CFLAGS . '-g -O ';
  #$BASE_CFLAGS = $COMMON_CFLAGS . '-g -Werror -O ';
  $BASE_CFLAGS = $COMMON_CFLAGS . '-g -Wall -O ';
  #$BASE_CFLAGS = $COMMON_CFLAGS . '-g -Wall -Werror -O ';
}
else
{
  $BASE_CFLAGS = $COMMON_CFLAGS . '-DNDEBUG -O6 -mcpu=pentiumpro -march=pentium -fomit-frame-pointer -ffast-math -malign-loops=2 -malign-jumps=2 -malign-functions=2 -fno-strict-aliasing -fstrength-reduce ';
}

# extract the wolf version from q_shared.h
$line = `cat ../game/q_shared.h | grep Q3_VERSION`;
chomp $line;
$line =~ s/.*Wolf\ (.*)\"/$1/;
$WOLF_VER = $line;

print "Wolfenstein version $WOLF_VER\n";
print 'cpu : ' . $cpu . "\nOS  : " . $OS . "\nlibc: " . $libc . "\n";
print "configured for " . $config . " build\n";
if ($do_demo eq 1)
{
  print "building in demo mode\n";
}
print 'CFLAGS: ' . $BASE_CFLAGS . "\n";

# by default, build everything below the config dir
Default '..';

# Disabling BSPC build. We use the one in MP anyway
##----------------------------------------------
## build bspc
#
#$TARGET_DIR = 'tools/bspc';
#$BUILD_DIR = $CONFIG_DIR . '/' . $TARGET_DIR;
#Link $BUILD_DIR => '..';
#Export qw( BASE_CFLAGS CONFIG_DIR BUILD_DIR CC CXX LINK );
#Build $BUILD_DIR . '/unix/Conscript-bspc';

#----------------------------------------------
# build the extractfunc tool

$BUILD_DIR = '../extractfuncs/out';
Link $BUILD_DIR => '../..';
Build $BUILD_DIR . '/src/extractfuncs/Conscript';

#----------------------------------------------
$TARGET_DIR = 'full';

$BUILD_DIR = $CONFIG_DIR . "/" . $TARGET_DIR;

Link $BUILD_DIR => '..';

Export qw( BASE_CFLAGS CONFIG_DIR BUILD_DIR CC CXX LINK );

Build $BUILD_DIR . "/unix/Conscript-client";

#---------------------------------------------
$TARGET_DIR = 'game';

$BUILD_DIR = $CONFIG_DIR . "/" . $TARGET_DIR;

Link $BUILD_DIR => '..';

Export qw( BASE_CFLAGS CONFIG_DIR BUILD_DIR BASEGAME CC CXX LINK );

Build $BUILD_DIR . "/unix/Conscript-game";

#----------------------------------------------
# NOTE TTimo for cgame and ui, we have to
#   link the dir starting below Wolfenstein/
#   because ui_shared.h reads in ../../MAIN/UI
$TARGET_DIR = 'cgame';

$BUILD_DIR = $CONFIG_DIR . "/" . $TARGET_DIR;

Link $BUILD_DIR => '../..';

Export qw( BASE_CFLAGS CONFIG_DIR BUILD_DIR BASEGAME CC CXX LINK );

Build $BUILD_DIR . "/src/unix/Conscript-cgame";

#----------------------------------------------
$TARGET_DIR = 'ui';

$BUILD_DIR = $CONFIG_DIR . "/" . $TARGET_DIR;

Link $BUILD_DIR => '../..';

Export qw( BASE_CFLAGS CONFIG_DIR BUILD_DIR BASEGAME CC CXX LINK );

Build $BUILD_DIR . "/src/unix/Conscript-ui";

#----------------------------------------------
if ($do_setup eq 1)
{
  # we bail out if config is not release
  if ($config ne 'release')
  {
    print "Not building setups with debug config\n";
    exit;
  }
  Link $CONFIG_DIR => '.';
  Export qw( CONFIG_DIR WOLF_VER BASEGAME do_demo CC CXX LINK );
  Build $CONFIG_DIR . "/Conscript-setup";
}
#--------------------------------------------------
# cons help for those that ask for it (with 'cons -h')
Help 
"
Usage: cons [-h] [ -- [release|debug] [demo] [setup] [info]]

options:
[release|debug]
 Default build type is Debug, specifying '-- release' on the
 command line builds a Release version.
 
[demo]
 This switch uses -DPRE_RELEASE_DEMO and builds for MPTest

[setup]
 'cons -- setup' will build then execute the setup building scripts
   NOTE: 'cons -- setup' will default to release configuration
 you can use 'cons -- setup debug' to force debug setups building
 reminder: distributed binaries must be configured in release 
   and stripped from symbols

[info]
 Will cause cons to print the build directory name and exit without performing
 any build action (used by setup procedure).   
"
;