Lutok is a lightweight C++ API library for Lua.

Lutok provides thin C++ wrappers around the Lua C API to ease the
interaction between C++ and Lua.  These wrappers make intensive use of
RAII to prevent resource leakage, expose C++-friendly data types, report
errors by means of exceptions and ensure that the Lua stack is always
left untouched in the face of errors.  The library also provides a small
subset of miscellaneous utility functions built on top of the wrappers.

Lutok focuses on providing a clean and safe C++ interface; the drawback
is that it is not suitable for performance-critical environments.  In
order to implement error-safe C++ wrappers on top of a Lua C binary
library, Lutok adds several layers or abstraction and error checking
that go against the original spirit of the Lua C API and thus degrade
performance.

WWW: https://code.google.com/p/lutok/

PR:		ports/177639
Submitted by:	Alan Somers <asomers@FreeBSD.org>

6 files changed, 943 insertions, 0 deletions

diff --git a/devel/lutok/Makefile b/devel/lutok/Makefile
new file mode 100644
index 000000000000..273d07adf5f5
--- /dev/null
+++ b/devel/lutok/Makefile
@@ -0,0 +1,64 @@
+# Created by: Alan Somers <asomers@freebsd.org>
+# $FreeBSD$
+
+PORTNAME=	lutok
+PORTVERSION=	0.2
+CATEGORIES=	devel
+MASTER_SITES=	${MASTER_SITE_GOOGLE_CODE}
+
+MAINTAINER=	asomers@freebsd.org
+COMMENT=	Lightweight C++ API for Lua
+
+LICENSE=	BSD
+
+GNU_CONFIGURE=	yes
+USE_LUA=	5.1
+USE_LDCONFIG=	yes
+USES=		pkgconfig
+
+OPTIONS_DEFINE=	DOCS EXAMPLES
+
+.include <bsd.port.options.mk>
+
+CONFIGURE_ARGS+=	--docdir=${DOCSDIR}
+CONFIGURE_ARGS+=	--htmldir=${DOCSDIR}/html
+# The distfile contains prebuilt doxygen files.  Specify --without_doxygen so
+# we won't rebuild them
+CONFIGURE_ARGS+=	--without-doxygen
+# TODO: install the tests, once FreeBSD has a system for ports to install tests
+CONFIGURE_ARGS+=	--without-atf
+
+MAKE_FLAGS+=	examplesdir=${EXAMPLESDIR}
+.if ! ${PORT_OPTIONS:MDOCS}
+MAKE_FLAGS+=	doc_DATA=
+.endif
+.if ! ${PORT_OPTIONS:MEXAMPLES}
+MAKE_FLAGS+=	examples_DATA=
+.endif
+
+PORTDOCS=	AUTHORS COPYING NEWS README html
+PORTEXAMPLES=	Makefile bindings.cpp hello.cpp interpreter.cpp raii.cpp
+
+PLIST_SUBST+=	TESTS="@comment "
+
+post-patch: .SILENT
+	@${REINPLACE_CMD} -e 's|@pkgconfigdir@|${PREFIX}/libdata/pkgconfig|' \
+		${WRKSRC}/Makefile.in
+
+# Eliminate empty directories
+remove-docsdir: .SILENT
+	${RMDIR} ${DOCSDIR}
+remove-examplesdir: .SILENT
+	${RMDIR} ${EXAMPLESDIR}
+
+.if ! ${PORT_OPTIONS:MDOCS}
+pre-install: .SILENT
+	${RM} -rf ${WRKSRC}/api-docs
+post-install: remove-docsdir
+.endif
+
+.if ! ${PORT_OPTIONS:MEXAMPLES}
+post-install: remove-examplesdir
+.endif
+
+.include <bsd.port.mk>
diff --git a/devel/lutok/distinfo b/devel/lutok/distinfo
new file mode 100644
index 000000000000..30baeda4b228
--- /dev/null
+++ b/devel/lutok/distinfo
@@ -0,0 +1,2 @@
+SHA256 (lutok-0.2.tar.gz) = df6f175fdd417ff830ec46509816a40b92fec816de726e815b4ae4f7fea405bd
+SIZE (lutok-0.2.tar.gz) = 492333
diff --git a/devel/lutok/files/patch-configure b/devel/lutok/files/patch-configure
new file mode 100644
index 000000000000..6dc4f5b38107
--- /dev/null
+++ b/devel/lutok/files/patch-configure
@@ -0,0 +1,830 @@
+--- configure.old	2012-05-30 16:35:18.000000000 -0600
++++ configure	2013-04-02 17:30:03.558130055 -0600
+@@ -1,13 +1,11 @@
+ #! /bin/sh
+ # Guess values for system-dependent variables and create Makefiles.
+-# Generated by GNU Autoconf 2.68 for Lutok 0.2.
++# Generated by GNU Autoconf 2.69 for Lutok 0.2.
+ #
+ # Report bugs to <lutok-discuss@googlegroups.com>.
+ #
+ #
+-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+-# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
+-# Foundation, Inc.
++# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+ #
+ #
+ # This configure script is free software; the Free Software Foundation
+@@ -138,6 +136,31 @@
+ # CDPATH.
+ (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+ 
++# Use a proper internal environment variable to ensure we don't fall
++  # into an infinite loop, continuously re-executing ourselves.
++  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
++    _as_can_reexec=no; export _as_can_reexec;
++    # We cannot yet assume a decent shell, so we have to provide a
++# neutralization value for shells without unset; and this also
++# works around shells that cannot unset nonexistent variables.
++# Preserve -v and -x to the replacement shell.
++BASH_ENV=/dev/null
++ENV=/dev/null
++(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
++case $- in # ((((
++  *v*x* | *x*v* ) as_opts=-vx ;;
++  *v* ) as_opts=-v ;;
++  *x* ) as_opts=-x ;;
++  * ) as_opts= ;;
++esac
++exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
++# Admittedly, this is quite paranoid, since all the known shells bail
++# out after a failed `exec'.
++$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
++as_fn_exit 255
++  fi
++  # We don't want this to propagate to other subprocesses.
++          { _as_can_reexec=; unset _as_can_reexec;}
+ if test "x$CONFIG_SHELL" = x; then
+   as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+   emulate sh
+@@ -171,7 +194,8 @@
+ else
+   exitcode=1; echo positional parameters were not saved.
+ fi
+-test x\$exitcode = x0 || exit 1"
++test x\$exitcode = x0 || exit 1
++test -x / || exit 1"
+   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+@@ -224,21 +248,25 @@
+ 
+ 
+       if test "x$CONFIG_SHELL" != x; then :
+-  # We cannot yet assume a decent shell, so we have to provide a
+-	# neutralization value for shells without unset; and this also
+-	# works around shells that cannot unset nonexistent variables.
+-	# Preserve -v and -x to the replacement shell.
+-	BASH_ENV=/dev/null
+-	ENV=/dev/null
+-	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+-	export CONFIG_SHELL
+-	case $- in # ((((
+-	  *v*x* | *x*v* ) as_opts=-vx ;;
+-	  *v* ) as_opts=-v ;;
+-	  *x* ) as_opts=-x ;;
+-	  * ) as_opts= ;;
+-	esac
+-	exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
++  export CONFIG_SHELL
++             # We cannot yet assume a decent shell, so we have to provide a
++# neutralization value for shells without unset; and this also
++# works around shells that cannot unset nonexistent variables.
++# Preserve -v and -x to the replacement shell.
++BASH_ENV=/dev/null
++ENV=/dev/null
++(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
++case $- in # ((((
++  *v*x* | *x*v* ) as_opts=-vx ;;
++  *v* ) as_opts=-v ;;
++  *x* ) as_opts=-x ;;
++  * ) as_opts= ;;
++esac
++exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
++# Admittedly, this is quite paranoid, since all the known shells bail
++# out after a failed `exec'.
++$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
++exit 255
+ fi
+ 
+     if test x$as_have_required = xno; then :
+@@ -341,6 +369,14 @@
+ 
+ 
+ } # as_fn_mkdir_p
++
++# as_fn_executable_p FILE
++# -----------------------
++# Test if FILE is an executable regular file.
++as_fn_executable_p ()
++{
++  test -f "$1" && test -x "$1"
++} # as_fn_executable_p
+ # as_fn_append VAR VALUE
+ # ----------------------
+ # Append the text in VALUE to the end of the definition contained in VAR. Take
+@@ -462,6 +498,10 @@
+   chmod +x "$as_me.lineno" ||
+     { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+ 
++  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
++  # already done that, so ensure we don't try to do so again and fall
++  # in an infinite loop.  This has already happened in practice.
++  _as_can_reexec=no; export _as_can_reexec
+   # Don't try to exec as it changes $[0], causing all sort of problems
+   # (the dirname of $[0] is not the place where we might find the
+   # original and so on.  Autoconf is especially sensitive to this).
+@@ -496,16 +536,16 @@
+     # ... but there are two gotchas:
+     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+-    # In both cases, we have to default to `cp -p'.
++    # In both cases, we have to default to `cp -pR'.
+     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+-      as_ln_s='cp -p'
++      as_ln_s='cp -pR'
+   elif ln conf$$.file conf$$ 2>/dev/null; then
+     as_ln_s=ln
+   else
+-    as_ln_s='cp -p'
++    as_ln_s='cp -pR'
+   fi
+ else
+-  as_ln_s='cp -p'
++  as_ln_s='cp -pR'
+ fi
+ rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+ rmdir conf$$.dir 2>/dev/null
+@@ -517,28 +557,8 @@
+   as_mkdir_p=false
+ fi
+ 
+-if test -x / >/dev/null 2>&1; then
+-  as_test_x='test -x'
+-else
+-  if ls -dL / >/dev/null 2>&1; then
+-    as_ls_L_option=L
+-  else
+-    as_ls_L_option=
+-  fi
+-  as_test_x='
+-    eval sh -c '\''
+-      if test -d "$1"; then
+-	test -d "$1/.";
+-      else
+-	case $1 in #(
+-	-*)set "./$1";;
+-	esac;
+-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+-	???[sx]*):;;*)false;;esac;fi
+-    '\'' sh
+-  '
+-fi
+-as_executable_p=$as_test_x
++as_test_x='test -x'
++as_executable_p=as_fn_executable_p
+ 
+ # Sed expression to map a string onto a valid CPP name.
+ as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+@@ -1248,8 +1268,6 @@
+ if test "x$host_alias" != x; then
+   if test "x$build_alias" = x; then
+     cross_compiling=maybe
+-    $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
+-    If a cross compiler is detected then cross compile mode will be used" >&2
+   elif test "x$build_alias" != "x$host_alias"; then
+     cross_compiling=yes
+   fi
+@@ -1526,9 +1544,9 @@
+ if $ac_init_version; then
+   cat <<\_ACEOF
+ Lutok configure 0.2
+-generated by GNU Autoconf 2.68
++generated by GNU Autoconf 2.69
+ 
+-Copyright (C) 2010 Free Software Foundation, Inc.
++Copyright (C) 2012 Free Software Foundation, Inc.
+ This configure script is free software; the Free Software Foundation
+ gives unlimited permission to copy, distribute and modify it.
+ 
+@@ -1606,7 +1624,7 @@
+ 	 test ! -s conftest.err
+        } && test -s conftest$ac_exeext && {
+ 	 test "$cross_compiling" = yes ||
+-	 $as_test_x conftest$ac_exeext
++	 test -x conftest$ac_exeext
+        }; then :
+   ac_retval=0
+ else
+@@ -1904,7 +1922,7 @@
+ 	 test ! -s conftest.err
+        } && test -s conftest$ac_exeext && {
+ 	 test "$cross_compiling" = yes ||
+-	 $as_test_x conftest$ac_exeext
++	 test -x conftest$ac_exeext
+        }; then :
+   ac_retval=0
+ else
+@@ -1927,7 +1945,7 @@
+ running configure, to aid debugging if configure makes a mistake.
+ 
+ It was created by Lutok $as_me 0.2, which was
+-generated by GNU Autoconf 2.68.  Invocation command line was
++generated by GNU Autoconf 2.69.  Invocation command line was
+ 
+   $ $0 $@
+ 
+@@ -2354,7 +2372,7 @@
+     # by default.
+     for ac_prog in ginstall scoinst install; do
+       for ac_exec_ext in '' $ac_executable_extensions; do
+-	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
++	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+ 	  if test $ac_prog = install &&
+ 	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ 	    # AIX install.  It has an incompatible calling convention.
+@@ -2523,7 +2541,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -2563,7 +2581,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_STRIP="strip"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -2614,7 +2632,7 @@
+   test -z "$as_dir" && as_dir=.
+     for ac_prog in mkdir gmkdir; do
+ 	 for ac_exec_ext in '' $ac_executable_extensions; do
+-	   { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; } || continue
++	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
+ 	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+ 	     'mkdir (GNU coreutils) '* | \
+ 	     'mkdir (coreutils) '* | \
+@@ -2667,7 +2685,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_AWK="$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -3043,7 +3061,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_CC="${ac_tool_prefix}gcc"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -3083,7 +3101,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_CC="gcc"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -3136,7 +3154,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_CC="${ac_tool_prefix}cc"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -3177,7 +3195,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+        ac_prog_rejected=yes
+        continue
+@@ -3235,7 +3253,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -3279,7 +3297,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_CC="$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -3725,8 +3743,7 @@
+ /* end confdefs.h.  */
+ #include <stdarg.h>
+ #include <stdio.h>
+-#include <sys/types.h>
+-#include <sys/stat.h>
++struct stat;
+ /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+ struct buf { int x; };
+ FILE * (*rcsopen) (struct buf *, struct stat *, int);
+@@ -3961,7 +3978,7 @@
+     for ac_prog in sed gsed; do
+     for ac_exec_ext in '' $ac_executable_extensions; do
+       ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+-      { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue
++      as_fn_executable_p "$ac_path_SED" || continue
+ # Check for GNU ac_path_SED and select it if it is found.
+   # Check for GNU $ac_path_SED
+ case `"$ac_path_SED" --version 2>&1` in
+@@ -4037,7 +4054,7 @@
+     for ac_prog in grep ggrep; do
+     for ac_exec_ext in '' $ac_executable_extensions; do
+       ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+-      { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
++      as_fn_executable_p "$ac_path_GREP" || continue
+ # Check for GNU ac_path_GREP and select it if it is found.
+   # Check for GNU $ac_path_GREP
+ case `"$ac_path_GREP" --version 2>&1` in
+@@ -4103,7 +4120,7 @@
+     for ac_prog in egrep; do
+     for ac_exec_ext in '' $ac_executable_extensions; do
+       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+-      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
++      as_fn_executable_p "$ac_path_EGREP" || continue
+ # Check for GNU ac_path_EGREP and select it if it is found.
+   # Check for GNU $ac_path_EGREP
+ case `"$ac_path_EGREP" --version 2>&1` in
+@@ -4170,7 +4187,7 @@
+     for ac_prog in fgrep; do
+     for ac_exec_ext in '' $ac_executable_extensions; do
+       ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
+-      { test -f "$ac_path_FGREP" && $as_test_x "$ac_path_FGREP"; } || continue
++      as_fn_executable_p "$ac_path_FGREP" || continue
+ # Check for GNU ac_path_FGREP and select it if it is found.
+   # Check for GNU $ac_path_FGREP
+ case `"$ac_path_FGREP" --version 2>&1` in
+@@ -4426,7 +4443,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -4470,7 +4487,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -4894,7 +4911,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -4934,7 +4951,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_OBJDUMP="objdump"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -5240,7 +5257,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -5280,7 +5297,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -5384,7 +5401,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -5428,7 +5445,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_AR="$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -5553,7 +5570,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -5593,7 +5610,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_STRIP="strip"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -5652,7 +5669,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -5692,7 +5709,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_RANLIB="ranlib"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6341,7 +6358,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6381,7 +6398,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6461,7 +6478,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6501,7 +6518,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6553,7 +6570,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6593,7 +6610,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_NMEDIT="nmedit"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6645,7 +6662,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6685,7 +6702,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_LIPO="lipo"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6737,7 +6754,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6777,7 +6794,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_OTOOL="otool"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6829,7 +6846,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -6869,7 +6886,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_OTOOL64="otool64"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -11396,7 +11413,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -11440,7 +11457,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_prog_ac_ct_CXX="$ac_prog"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -15218,7 +15235,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -15261,7 +15278,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -15498,7 +15515,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_path_DOXYGEN="$as_dir/$ac_word$ac_exec_ext"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -15542,7 +15559,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_path_DOXYGEN="$as_dir/$ac_word$ac_exec_ext"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -15669,6 +15686,78 @@
+     pkg_cv_LUA_CFLAGS="$LUA_CFLAGS"
+  elif test -n "$PKG_CONFIG"; then
+     if test -n "$PKG_CONFIG" && \
++    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua-5.1 >= 5.1\""; } >&5
++  ($PKG_CONFIG --exists --print-errors "lua-5.1 >= 5.1") 2>&5
++  ac_status=$?
++  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
++  test $ac_status = 0; }; then
++  pkg_cv_LUA_CFLAGS=`$PKG_CONFIG --cflags "lua-5.1 >= 5.1" 2>/dev/null`
++else
++  pkg_failed=yes
++fi
++ else
++    pkg_failed=untried
++fi
++if test -n "$LUA_LIBS"; then
++    pkg_cv_LUA_LIBS="$LUA_LIBS"
++ elif test -n "$PKG_CONFIG"; then
++    if test -n "$PKG_CONFIG" && \
++    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua-5.1 >= 5.1\""; } >&5
++  ($PKG_CONFIG --exists --print-errors "lua-5.1 >= 5.1") 2>&5
++  ac_status=$?
++  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
++  test $ac_status = 0; }; then
++  pkg_cv_LUA_LIBS=`$PKG_CONFIG --libs "lua-5.1 >= 5.1" 2>/dev/null`
++else
++  pkg_failed=yes
++fi
++ else
++    pkg_failed=untried
++fi
++
++
++
++if test $pkg_failed = yes; then
++   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
++$as_echo "no" >&6; }
++
++if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
++        _pkg_short_errors_supported=yes
++else
++        _pkg_short_errors_supported=no
++fi
++        if test $_pkg_short_errors_supported = yes; then
++	        LUA_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "lua-5.1 >= 5.1" 2>&1`
++        else
++	        LUA_PKG_ERRORS=`$PKG_CONFIG --print-errors "lua-5.1 >= 5.1" 2>&1`
++        fi
++	# Put the nasty error message in config.log where it belongs
++	echo "$LUA_PKG_ERRORS" >&5
++
++	true
++elif test $pkg_failed = untried; then
++     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
++$as_echo "no" >&6; }
++	true
++else
++	LUA_CFLAGS=$pkg_cv_LUA_CFLAGS
++	LUA_LIBS=$pkg_cv_LUA_LIBS
++        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
++$as_echo "yes" >&6; }
++	lua_found=yes
++fi
++    fi
++
++   if test "${lua_found}" = no; then
++
++pkg_failed=no
++{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LUA" >&5
++$as_echo_n "checking for LUA... " >&6; }
++
++if test -n "$LUA_CFLAGS"; then
++    pkg_cv_LUA_CFLAGS="$LUA_CFLAGS"
++ elif test -n "$PKG_CONFIG"; then
++    if test -n "$PKG_CONFIG" && \
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua >= 5.1\""; } >&5
+   ($PKG_CONFIG --exists --print-errors "lua >= 5.1") 2>&5
+   ac_status=$?
+@@ -15752,7 +15841,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_path_LUA_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -15814,7 +15903,7 @@
+   IFS=$as_save_IFS
+   test -z "$as_dir" && as_dir=.
+     for ac_exec_ext in '' $ac_executable_extensions; do
+-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
++  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+     ac_cv_path_GIT="$as_dir/$ac_word$ac_exec_ext"
+     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+     break 2
+@@ -16279,16 +16368,16 @@
+     # ... but there are two gotchas:
+     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+-    # In both cases, we have to default to `cp -p'.
++    # In both cases, we have to default to `cp -pR'.
+     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+-      as_ln_s='cp -p'
++      as_ln_s='cp -pR'
+   elif ln conf$$.file conf$$ 2>/dev/null; then
+     as_ln_s=ln
+   else
+-    as_ln_s='cp -p'
++    as_ln_s='cp -pR'
+   fi
+ else
+-  as_ln_s='cp -p'
++  as_ln_s='cp -pR'
+ fi
+ rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+ rmdir conf$$.dir 2>/dev/null
+@@ -16348,28 +16437,16 @@
+   as_mkdir_p=false
+ fi
+ 
+-if test -x / >/dev/null 2>&1; then
+-  as_test_x='test -x'
+-else
+-  if ls -dL / >/dev/null 2>&1; then
+-    as_ls_L_option=L
+-  else
+-    as_ls_L_option=
+-  fi
+-  as_test_x='
+-    eval sh -c '\''
+-      if test -d "$1"; then
+-	test -d "$1/.";
+-      else
+-	case $1 in #(
+-	-*)set "./$1";;
+-	esac;
+-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+-	???[sx]*):;;*)false;;esac;fi
+-    '\'' sh
+-  '
+-fi
+-as_executable_p=$as_test_x
++
++# as_fn_executable_p FILE
++# -----------------------
++# Test if FILE is an executable regular file.
++as_fn_executable_p ()
++{
++  test -f "$1" && test -x "$1"
++} # as_fn_executable_p
++as_test_x='test -x'
++as_executable_p=as_fn_executable_p
+ 
+ # Sed expression to map a string onto a valid CPP name.
+ as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+@@ -16391,7 +16468,7 @@
+ # values after options handling.
+ ac_log="
+ This file was extended by Lutok $as_me 0.2, which was
+-generated by GNU Autoconf 2.68.  Invocation command line was
++generated by GNU Autoconf 2.69.  Invocation command line was
+ 
+   CONFIG_FILES    = $CONFIG_FILES
+   CONFIG_HEADERS  = $CONFIG_HEADERS
+@@ -16458,10 +16535,10 @@
+ ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ ac_cs_version="\\
+ Lutok config.status 0.2
+-configured by $0, generated by GNU Autoconf 2.68,
++configured by $0, generated by GNU Autoconf 2.69,
+   with options \\"\$ac_cs_config\\"
+ 
+-Copyright (C) 2010 Free Software Foundation, Inc.
++Copyright (C) 2012 Free Software Foundation, Inc.
+ This config.status script is free software; the Free Software Foundation
+ gives unlimited permission to copy, distribute and modify it."
+ 
+@@ -16552,7 +16629,7 @@
+ _ACEOF
+ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ if \$ac_cs_recheck; then
+-  set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
++  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+   shift
+   \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+   CONFIG_SHELL='$SHELL'
diff --git a/devel/lutok/files/patch-m4-lua.m4 b/devel/lutok/files/patch-m4-lua.m4
new file mode 100644
index 000000000000..de0dd99a010e
--- /dev/null
+++ b/devel/lutok/files/patch-m4-lua.m4
@@ -0,0 +1,13 @@
+--- m4/lua.m4.old	2013-03-25 16:13:07.943129888 -0600
++++ m4/lua.m4	2013-03-25 16:13:20.186640871 -0600
+@@ -37,6 +37,10 @@
+     PKG_CHECK_MODULES([LUA], [lua5.1 >= 5.1], [lua_found=yes], [true])
+ 
+     if test "${lua_found}" = no; then
++        PKG_CHECK_MODULES([LUA], [lua-5.1 >= 5.1], [lua_found=yes], [true])
++    fi
++
++   if test "${lua_found}" = no; then
+         PKG_CHECK_MODULES([LUA], [lua >= 5.1], [lua_found=yes], [true])
+     fi
+ 
diff --git a/devel/lutok/pkg-descr b/devel/lutok/pkg-descr
new file mode 100644
index 000000000000..7d860c0552eb
--- /dev/null
+++ b/devel/lutok/pkg-descr
@@ -0,0 +1,17 @@
+Lutok is a lightweight C++ API library for Lua.
+
+Lutok provides thin C++ wrappers around the Lua C API to ease the
+interaction between C++ and Lua.  These wrappers make intensive use of
+RAII to prevent resource leakage, expose C++-friendly data types, report
+errors by means of exceptions and ensure that the Lua stack is always
+left untouched in the face of errors.  The library also provides a small
+subset of miscellaneous utility functions built on top of the wrappers.
+
+Lutok focuses on providing a clean and safe C++ interface; the drawback
+is that it is not suitable for performance-critical environments.  In
+order to implement error-safe C++ wrappers on top of a Lua C binary
+library, Lutok adds several layers or abstraction and error checking
+that go against the original spirit of the Lua C API and thus degrade
+performance.
+
+WWW: https://code.google.com/p/lutok/
diff --git a/devel/lutok/pkg-plist b/devel/lutok/pkg-plist
new file mode 100644
index 000000000000..7c9a7f8c4868
--- /dev/null
+++ b/devel/lutok/pkg-plist
@@ -0,0 +1,17 @@
+include/lutok/c_gate.hpp
+include/lutok/debug.hpp
+include/lutok/exceptions.hpp
+include/lutok/operations.hpp
+include/lutok/stack_cleaner.hpp
+include/lutok/state.hpp
+include/lutok/state.ipp
+include/lutok/test_utils.hpp
+lib/liblutok.a
+lib/liblutok.la
+lib/liblutok.so
+lib/liblutok.so.1
+libdata/pkgconfig/lutok.pc
+@exec mkdir -p %D/tests/lutok
+@dirrm tests/lutok
+@dirrmtry tests
+@dirrm include/lutok