A script to build Haserl 0.9.29 with LuaJIT 2.0

README.md

This script modifies the Haserl 0.9.29 distribution so it works with LuaJIT 2.0 as well as Lua 5.1. The script takes a single argument that is the path to a LuaJIT / Lua distribution directory in which library and executable files have been built. A typical usage is

    ./build-haserl-luajit.sh /usr/local/src/LuaJIT-2.0.0/

The script patches configure.ac, builds Haserl, and executes a CGI script to verify that LuaJIT / Lua is working within Haserl.

The LuaJIT distribution builds both .so and .a libraries; this script always uses the .a library so the Haserl executable contains an embedded copy of LuaJIT. If you prefer to link dynamically to LuaJIT, modify the script to change

    [ LIBS="-Wl,-Bstatic -l$LUALIB -Wl,-Bdynamic $LIBS" ]

to

    [ LIBS="-l$LUALIB $LIBS" ]

This script does not will work with Lua 5.2.x distributions.

build-haserl-luajit.sh

#!/bin/sh

:<<'########################################################################'

  Usage: build-haserl-luajit.sh /path/to/LuaJIT/Distribution/Directory/

This script modifies the Haserl 0.9.29 distribution so Haserl is built 
with an embedded copy of LuaJIT.

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

Change-log: 
  2012-12-07 First version.

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

This script was written in 2012 by third07 at gmail dot com.

To the extent possible under law, the author(s) have dedicated all
copyright and related and neighboring rights to this software to the
public domain worldwide. This software is distributed without any
warranty.

See http://creativecommons.org/publicdomain/zero/1.0/ for a copy of
the CC0 Public Domain Dedication under which this work is distributed.

########################################################################

# Print an error message and exit.
function die () { printf "=== $@ ===\n" ; exit 1 ; }

# Ensure that this script is executing in the top-level Haserl directory.
if [ ! -r src/haserl_lualib.lua ] ; then
  die 'Execute this script in the top-level Haserl directory.'
fi

# Ensure that this is the Haserl 0.9.29 release.
! grep -qv 0.9.29 configure.ac && 
  die 'This script only works with Haserl 0.9.29.'

# Determine the directory of the Lua distribution.
LUADIR="$1"
[ -z "$LUADIR" ] &&
  die 'Specify the LuaJIT distribution directory on the command line.'
[ ! -d "$LUADIR" ] && die "$LUADIR is not a directory."
LUADIR=$(cd "$LUADIR" ; pwd)

# Determine which Lua interpreter is in LUADIR.
if [ -x $LUADIR/src/lua ] ; then
  LUAPROG='lua'
elif [ -x $LUADIR/src/luajit ]; then
  LUAPROG='luajit'
else
  die "There is not a Lua interpreter in $LUADIR/src."
fi

# Verify the existence of the other Lua files that will be used.
for FILE in lua.h lauxlib.h lualib.h "lib$LUAPROG.a" ; do
  [ ! -f "$LUADIR/src/$FILE" ] && 
    die "The file $LUADIR/src/$FILE does not exit."
done

# Check for Lua 5.2.
[ "$($LUADIR/src/$LUAPROG -e 'io.write(_VERSION)')" = 'Lua 5.2' ] &&
  die 'This script does not work with Lua 5.2.'

# Patch configure.ac.
[ ! -r configure.ac.orig ] && cp -a configure.ac configure.ac.orig
cp -a configure.ac.orig configure.ac
cat <<'EOF' | patch
--- configure.ac.orig	2011-05-10 11:31:21.000000000 -0500
+++ configure.ac	2012-12-05 16:01:00.000000000 -0600
@@ -61,22 +61,17 @@
   no)	ac_report_have_lua=disabled
 	;;	
   *)	AC_SEARCH_LIBS(dlopen, dl)
-	# ubuntu has lua5.1 rather than just lua
-	if pkg-config --exists lua5.1; then
-		LUALIB=lua5.1
-	else
-		LUALIB=lua
-	fi
-	if test -z "$LUA_HDR_DIR"; then
-		CFLAGS="$CFLAGS `pkg-config $LUALIB --cflags`"
-	fi
-	LIBS="$LIBS -lm"
+	LUALIB=$(cd $withval; ls liblua* | grep -Eo "luajit|lua" | head -n 1)
+    	LIBS="$LIBS -lm"
 	LDFLAGS="$LDFLAGS -Wl,-E -L$withval"
 	AC_DEFINE(USE_LUA, , [Enable Lua])
 
-	AC_CHECK_LIB($LUALIB, luaL_newstate, , [
-        	AC_MSG_ERROR([The Lua runtime library cannot be found!])
-	], $LIBS)
+	AC_CHECK_LIB($LUALIB, 
+    		luaL_newstate, 
+    		[ LIBS="-Wl,-Bstatic -l$LUALIB -Wl,-Bdynamic $LIBS" ],
+    		[ AC_MSG_ERROR([The Lua runtime library cannot be found!]) ],
+    		$LIBS)
+
 	luashell=true
 	luacshell=true
 	ac_report_have_lua=enabled
EOF

# Configure Haserl to include LuaJIT (or Lua).
autoreconf
./configure \
  --with-lua="$LUADIR/src" \
  --with-lua-headers="$LUADIR/src"

# Create a test script
cat >test.cgi <<EOF
#!$(pwd)/src/haserl --shell=lua
<% io.write('Content-Type: text/html\r\n\r\n') -- Mandatory text %>
<html>
<head> <title>Haserl+LuaJIT Test Script</title> </head>
<body>  
<h2><% io.write(os.date()) %></h2>
<h2><% io.write('This version of Haserl includes ')
       io.write(jit == nil and _VERSION or jit.version) %></h2>
</body>
</html>
EOF
chmod +x test.cgi

# Build Haserl.
make clean ; make


# Test Haserl.
./test.cgi