#!/bin/sh

EXTENSION=$(expr match $(basename $0) 'make_\(.*\)\.sh')
VERSION=2.0.0-beta2
DOWNLOAD=http://luajit.org/download/LuaJIT-$VERSION.tar.gz

#-----------------------------------------------------------------------

# Download if necessary.
[ -r /tmp/luajit-$VERSION.tar.gz ] || 
  wget -O- $DOWNLOAD >/tmp/luajit-$VERSION.tar.gz

# Unpack in /tmp/.
cd /tmp 
tar xzf /tmp/luajit-$VERSION.tar.gz

# Make the package.

# Install readline-dev.tcz if running on TC/MC.
[ $(which tce-load) ] && sudo -u tc tce-load -w -i readline-dev.tcz

cd /tmp/LuaJIT-$VERSION
CFLAGS="-march=i486 -mtune=i686 -Os -pipe" ; export CFLAGS

# Chage the compilation flags.
sed -i \
    -e 's/^CC= gcc -m32 .*/CC= gcc -m32 -march=i486 -mtune=i686 -Os -pipe/' \
    -e 's/#XCFLAGS+= -DLUAJIT_CPU_NOCMOV/XCFLAGS+= -DLUAJIT_CPU_NOCMOV/' \
     src/Makefile

make
touch /tmp/TIMESTAMP
sudo make install
ln -sf /usr/local/bin/luajit-$VERSION /usr/local/bin/luajit


#-----------------------------------------------------------------------

# This is a list of the files in extension "luajit".
cat >/tmp/luajit.files <<EOF
/usr/local/bin/luajit
/usr/local/bin/luajit-2.0.0-beta2
/usr/local/share/luajit-2.0.0-beta2/jit/bc.lua
/usr/local/share/luajit-2.0.0-beta2/jit/v.lua
/usr/local/share/luajit-2.0.0-beta2/jit/dump.lua
/usr/local/share/luajit-2.0.0-beta2/jit/dis_x86.lua
/usr/local/share/luajit-2.0.0-beta2/jit/dis_x64.lua
/usr/local/share/luajit-2.0.0-beta2/jit/vmdef.lua
EOF

# This is a list of the files to be excluded from
# both "luajit" and "luajit-dev".
cat >/tmp/exclude.files <<EOF
/man/
EOF

# Dispatch based to the extension name.
case $EXTENSION in 

#-----------------------------------------------------------------------
luajit) #---------------------------------------------------------------
#-----------------------------------------------------------------------

# Copy the files from /usr/local to /tmp/package/usr/local.
find /usr/local -not -type d -cnewer /tmp/TIMESTAMP | \
  grep -v -f /tmp/exclude.files | \
  grep    -f /tmp/luajit.files | \
  cpio -pud /tmp/package 

# Create luajit.tcz.info.
cat >/tmp/luajit.tcz.info <<EOF
Title:          luajit.tcz (TESTING)
Description:    Lua Just-In-Time Compiler
Version:        $VERSION
Author:         Mike Pall
Original-site:  http://luajit.org/luajit.html
Copying-policy: MIT License
Size:           SiZeK
Extension_by:   vitex
Comments:       From http://luajit.org/luajit.html:
                
                  LuaJIT implements the full set of language features 
                  defined by Lua 5.1. The virtual machine (VM) is API- 
                  and ABI-compatible to the standard Lua interpreter 
                  and can be deployed as a drop-in replacement.

                  LuaJIT offers more performance, at the expense of 
                  portability. It currently runs on all popular 
                  operating systems based on x86 CPUs (Linux, Windows, 
                  OSX etc.). It will be ported to x64 CPUs and other 
                  platforms in the future, based on user demand and 
                  sponsoring. 

                -----------------------------------------------------

                This extension contains the LuaJIT compiler. See the
                luajit-dev extension for the developmental files from 
                the LuaJIT distribution.

                This is a beta release of the higher-performance 
                version 2 of LuaJIT. 

                This extension was built with the TC-standard compiler
                options "-march=i486 -mtune=i686 -Os -pipe".  LuaJIT
                is designed for i686 or better, so performance is not 
                optimal.  I have no way to verify that this version 
                actually works on the i486 or i586 architectures.

                -----------------------------------------------------

Change-log:     ----------
Current:	2010/01/01 First version
EOF

;;   #------------------------------------------------------------------

#-----------------------------------------------------------------------
luajit-dev) #-----------------------------------------------------------
#-----------------------------------------------------------------------

# Copy the files from /usr/local to /tmp/package/usr/local.
find /usr/local -not -type d -cnewer /tmp/TIMESTAMP | \
  grep -v -f /tmp/exclude.files | \
  grep -v -f /tmp/luajit.files | \
  cpio -pud /tmp/package 

# Create luajit-dev.tcz.info.
cat >/tmp/luajit-dev.tcz.info <<EOF
Title:          luajit-dev.tcz (TESTING)
Description:    Developmental files for luajit
Version:        $VERSION
Author:         Mike Pall
Original-site:  http://luajit.org/luajit.html
Copying-policy: MIT License
Size:           SiZeK
Extension_by:   vitex
Comments:       From http://luajit.org/luajit.html:
                
                  LuaJIT implements the full set of language features 
                  defined by Lua 5.1. The virtual machine (VM) is API- 
                  and ABI-compatible to the standard Lua interpreter 
                  and can be deployed as a drop-in replacement.

                  LuaJIT offers more performance, at the expense of 
                  portability. It currently runs on all popular 
                  operating systems based on x86 CPUs (Linux, Windows, 
                  OSX etc.). It will be ported to x64 CPUs and other 
                  platforms in the future, based on user demand and 
                  sponsoring. 

                -----------------------------------------------------

                This extension contains the developmental files from
                the LuaJIT distribution.  See the luajit extension
                for the compiler.

                These files are needed if the comparable ones from 
                the lua extension are are not installed or if you 
                wish to link against the LuaJIT libraries.

                -----------------------------------------------------

Change-log:     ----------
Current:	2010/01/01 First version
EOF

;;   #------------------------------------------------------------------

#-----------------------------------------------------------------------
*) #--------------------------------------------------------------------
#-----------------------------------------------------------------------

echo "=== Unexpected extension: $EXTENSION ==="

;;   #------------------------------------------------------------------

esac