commit 6f07d020c97deabb2ca149765da37b3840d8b472
Author: acemtp@users.sourceforge.net <acemtp@users.sourceforge.net>
Date:   Thu May 6 01:52:28 2010 +0200

    initial version

diff --git a/code/acinclude.m4 b/code/acinclude.m4
new file mode 100644
index 000000000..1f9286bf9
--- /dev/null
+++ b/code/acinclude.m4
@@ -0,0 +1,1396 @@
+# =========================================================================
+#
+# Macros used by Nevrax in configure.in files.
+#
+# $Id: acinclude.m4,v 1.20 2005-04-04 10:07:29 cado Exp $
+# 
+# =========================================================================
+
+# =========================================================================
+# WARNING: The original version of this file is placed in the $CVSROOT/code
+#          directory.
+#          There is links in the $CVSROOT/code sub-directories to that file
+#          (ex: $CVSROOT/code/nel), so be careful of the consequences of
+#          any modification of that file.
+# =========================================================================
+
+# =========================================================================
+# Macros available in that file.
+#
+#
+# AM_NEL_DEBUG
+#
+#    Option:      none.
+#    Description: manage the different debug and the release mode by setting
+#                 correctly the CFLAGS and CXXFLAGS variables.
+#
+#
+# AM_PATH_NEL
+#
+#    Option:      none.
+#    Description: check the instalation of the NeL library and set the
+#                 CXXFLAGS and LIBS variables to use it.
+#
+#
+# AM_PATH_STLPORT
+#
+#    Option:      none.
+#    Description: check the instalation of the STLPort library and set the
+#                 CXXFLAGS and LIBS variables to use it.
+#
+#
+# AM_PATH_OPENGL
+#
+#    Option:      "yes" if the use of the OpenGL library is mandatory.
+#    Description: check the instalation of the OpenGL library and set the
+#                 OPENGL_CFLAGS and OPENGL_LIBS variables to use it.
+#
+#
+# AM_PATH_FREETYPE
+#
+#    Option:      "yes" if the use of the Freetype library is mandatory.
+#    Description: check the instalation of the OpenGL library and set the
+#                 FREETYPE_CFLAGS and FREETYPE_LIBS variables to use it.
+#
+#
+# AM_PATH_XF86VIDMODE
+#
+#    Option:      none.
+#    Description: check the instalation of the OpenGL library and set the
+#                 XF86VIDMODE_CFLAGS and XF86VIDMODE_LIBS variables to use it.
+#
+#
+# AM_PATH_OPENAL
+#
+#    Option:      "yes" if the use of the OpenAL library is mandatory.
+#    Description: check the instalation of the OpenGL library and set the
+#                 OPENAL_CFLAGS and OPENAL_LIBS variables to use it.
+#
+#
+# AM_PATH_PYTHON
+#
+#    Option:      "yes" if the use of the Python library is mandatory.
+#    Description: check the instalation of the OpenGL library and set the
+#                 PYTHON_CFLAGS and PYTHON_LIBS variables to use it.
+#
+# AM_PATH_CCACHE
+#
+#    Option:      none.
+#    Description: check the instalation of the Ccache utility.
+#
+# =========================================================================
+
+
+# =========================================================================
+# AM_NEL_DEBUG
+
+AC_DEFUN([AM_NEL_DEBUG],
+[
+
+MAX_C_OPTIMIZE="-O6"
+
+STL_DEBUG="-D__STL_DEBUG"
+
+NL_DEBUG="-DNL_DEBUG"
+NL_DEBUG_FAST="-DNL_DEBUG_FAST"
+NL_RELEASE_DEBUG="-DNL_RELEASE_DEBUG"
+NL_RELEASE="-DNL_RELEASE_DEBUG"
+
+AC_ARG_WITH(debug,
+    [  --with-debug[=full|medium|fast]
+                          Build a debug version (huge libraries).
+                          Full mode set only NeL and STL debug flags.
+                          Medium mode set NeL debug flags with inline
+                          optimization (default mode).
+                          Fast mode is like the Medium mode with some basic
+                          optimization.
+  --without-debug         Build without debugging code (default)],
+    [with_debug=$withval],
+    [with_debug=no])
+
+# Build optimized or debug version ?
+# First check for gcc and g++
+if test "$ac_cv_prog_gcc" = "yes"
+then
+    DEBUG_CFLAGS="-g"
+    DEBUG_OPTIMIZE_CC="-O"
+    OPTIMIZE_CFLAGS="$MAX_C_OPTIMIZE"
+else
+    DEBUG_CFLAGS="-g"
+    DEBUG_OPTIMIZE_CC=""
+    OPTIMIZE_CFLAGS=""
+fi
+
+if test "$ac_cv_prog_cxx_g" = "yes"
+then
+    DEBUG_CXXFLAGS="-g"
+    DEBUG_OPTIMIZE_CXX="-O"
+    OPTIMIZE_CXXFLAGS="-O3"
+    OPTIMIZE_INLINE_CXXFLAGS="-finline-functions"
+else
+    DEBUG_CXXFLAGS="-g"
+    DEBUG_OPTIMIZE_CXX=""
+    OPTIMIZE_CXXFLAGS=""
+    OPTIMIZE_INLINE_CXXFLAGS=""
+fi
+
+if test "$with_debug" = "yes" -o "$with_debug" = "medium"
+then
+    # Medium debug. Inline optimization
+    CFLAGS="$DEBUG_CFLAGS $OPTIMIZE_INLINE_CFLAGS $NL_DEBUG $NL_DEBUG_FAST $CFLAGS"
+    CXXFLAGS="$DEBUG_CXXFLAGS $OPTIMIZE_INLINE_CXXFLAGS $NL_DEBUG $NL_DEBUG_FAST $CXXFLAGS"
+else
+    if test "$with_debug" = "full"
+    then
+        # Full debug. Very slow in some cases
+        CFLAGS="$DEBUG_CFLAGS $NL_DEBUG $STL_DEBUG $CFLAGS"
+        CXXFLAGS="$DEBUG_CXXFLAGS $NL_DEBUG $STL_DEBUG $CXXFLAGS"
+    else
+        if test "$with_debug" = "fast"
+        then
+            # Fast debug.
+            CFLAGS="$DEBUG_CFLAGS $DEBUG_OPTIMIZE_CC $OPTIMIZE_INLINE_CFLAGS $NL_DEBUG $CFLAGS"
+            CXXFLAGS="$DEBUG_CXXFLAGS $DEBUG_OPTIMIZE_CXX $OPTIMIZE_INLINE_CXXFLAGS $NL_DEBUG $CXXFLAGS"
+        else
+            # Optimized version. No debug
+            CFLAGS="$OPTIMIZE_CFLAGS $NL_RELEASE_DEBUG $CFLAGS"
+            CXXFLAGS="$OPTIMIZE_CXXFLAGS $NL_RELEASE_DEBUG $CXXFLAGS"
+        fi
+    fi
+fi
+
+# AC_MSG_RESULT([CFLAGS = $CFLAGS])
+# AC_MSG_RESULT([CXXGLAGS = $CXXFLAGS])
+
+])
+
+
+# =========================================================================
+# MY_NEL_HEADER_CHK : NeL header files checking macros
+
+AC_DEFUN([MY_NEL_HEADER_CHK],
+[ AC_REQUIRE_CPP()
+
+chk_message_obj="$1"
+header="$2"
+macro="$3"
+is_mandatory="$4"
+
+if test $is_mandatory = "yes"
+then
+
+    _CPPFLAGS="$CPPFLAGS"
+
+    CPPFLAGS="$CXXFLAGS $NEL_CFLAGS"
+
+    AC_MSG_CHECKING(for $header)
+
+    AC_EGREP_CPP( yo_header,
+[#include <$header>
+#ifdef $macro
+   yo_header
+#endif],
+  have_header="yes",
+  have_header="no")
+
+    CPPFLAGS="$_CPPFLAGS"
+
+    if test "$have_header" = "yes"
+    then
+        AC_MSG_RESULT(yes)
+    else
+        if test "$is_mandatory" = "yes"
+        then
+            AC_MSG_ERROR([$chk_message_obj must be installed (http://www.nevrax.org).])
+        else
+            AC_MSG_RESULT(no)
+        fi
+    fi
+fi
+
+        
+])
+
+
+# =========================================================================
+# MY_NEL_LIB_CHK : NeL library checking macros
+
+AC_DEFUN([MY_NEL_LIB_CHK],
+[ AC_REQUIRE_CPP()
+
+chk_message_obj="$1"
+nel_test_lib="$2"
+is_mandatory="$3"
+
+if test $is_mandatory = "yes"
+then
+
+    AC_CHECK_LIB($nel_test_lib, main,,[AC_MSG_ERROR([$chk_message_obj must be installed (http://www.nevrax.org).])])
+fi
+])
+
+
+# =========================================================================
+# AM_PATH_NEL : NeL checking macros
+AC_DEFUN([AM_PATH_NEL],
+[ AC_REQUIRE_CPP()
+
+AC_ARG_WITH( nel,
+    [  --with-nel=<path>       path to the NeL install files directory.
+                          e.g. /usr/local/nel])
+
+AC_ARG_WITH( nel-include,
+    [  --with-nel-include=<path>
+                          path to the NeL header files directory.
+                          e.g. /usr/local/nel/include])
+
+AC_ARG_WITH( nel-lib,
+    [  --with-nel-lib=<path>
+                          path to the NeL library files directory.
+                          e.g. /usr/local/nel/lib])
+
+
+nelmisc_is_mandatory="$1"
+nelnet_is_mandatory="$2"
+nel3d_is_mandatory="$3"
+nelpacs_is_mandatory="$4"
+nelsound_is_mandatory="$5"
+nelai_is_mandatory="$6"
+nelgeorges_is_mandatory="$7"
+
+# Check for nel-config
+AC_PATH_PROG(NEL_CONFIG, nel-config, no)
+
+# 
+# Configure options (--with-nel*) have precendence 
+# over nel-config only set variables if they are not 
+# specified
+#
+if test "$NEL_CONFIG" != "no"
+then
+    if test -z "$with_nel" -a -z "$with_nel_include"
+    then
+	CXXFLAGS="$CXXFLAGS `nel-config --cflags`"
+    fi
+
+    if test -z "$with_nel" -a -z "$with_nel_lib"
+    then
+	LDFLAGS="`nel-config --ldflags` $LDFLAGS"
+    fi
+fi
+
+#
+# Set nel_libraries and nel_includes according to
+# user specification (--with-nel*) if any. 
+# --with-nel-include and --with-nel-lib have precendence
+# over --with-nel
+#
+if test "$with_nel" = "no"
+then
+    # The user explicitly disabled the use of the NeL
+    AC_MSG_ERROR([NeL is mandatory: do not specify --without-nel])
+else
+    if test "$with_nel" -a "$with_nel" != "yes"
+    then
+	nel_includes="$with_nel/include"
+	nel_libraries="$with_nel/lib"
+    fi
+fi
+
+if test "$with_nel_include"
+then
+    nel_includes="$with_nel_include"
+fi
+
+if test "$with_nel_lib"
+then
+    nel_libraries="$with_nel_lib"
+fi
+
+#
+# Set compilation variables 
+#
+if test "$nel_includes"
+then
+    CXXFLAGS="$CXXFLAGS -I$nel_includes"
+fi
+
+if test "$nel_libraries"
+then
+    LDFLAGS="-L$nel_libraries $LDFLAGS"
+fi
+
+#
+# Collect headers information and bark if missing and
+# mandatory
+#
+
+MY_NEL_HEADER_CHK([NeL Misc], [nel/misc/types_nl.h], [NL_TYPES_H], $nelmisc_is_mandatory)
+MY_NEL_HEADER_CHK([NeL Network], [nel/net/sock.h], [NL_SOCK_H], $nelnet_is_mandatory)
+MY_NEL_HEADER_CHK([NeL 3D], [nel/3d/u_camera.h], [NL_U_CAMERA_H], $nel3d_is_mandatory)
+MY_NEL_HEADER_CHK([NeL PACS], [nel/pacs/u_global_position.h], [NL_U_GLOBAL_POSITION_H], $nelpacs_is_mandatory)
+MY_NEL_HEADER_CHK([NeL Sound], [nel/sound/u_source.h], [NL_U_SOURCE_H], $nelsound_is_mandatory)
+MY_NEL_HEADER_CHK([NeL AI], [nel/ai/nl_ai.h], [_IA_NEL_H], $nelai_is_mandatory)
+MY_NEL_HEADER_CHK([NeL Georges], [nel/georges/common.h], [NLGEORGES_COMMON_H], $nelgeorges_is_mandatory)
+
+#
+# Collect libraries information and bark if missing and
+# mandatory
+#
+
+MY_NEL_LIB_CHK([NeL Misc], [nelmisc], $nelmisc_is_mandatory)
+MY_NEL_LIB_CHK([NeL Network], [nelnet], $nelnet_is_mandatory)
+MY_NEL_LIB_CHK([NeL 3D], [nel3d], $nel3d_is_mandatory)
+MY_NEL_LIB_CHK([NeL PACS], [nelpacs], $nelpacs_is_mandatory)
+MY_NEL_LIB_CHK([NeL Sound], [nelsnd], $nelsound_is_mandatory)
+MY_NEL_LIB_CHK([NeL AI], [nelai], $nelai_is_mandatory)
+MY_NEL_LIB_CHK([NeL Georges], [nelgeorges], $nelgeorges_is_mandatory)
+
+])
+
+
+# =========================================================================
+# AM_PATH_STLPORT : STLPort checking macros
+
+AC_DEFUN([AM_PATH_STLPORT],
+[ AC_REQUIRE_CPP()
+
+AC_ARG_WITH( stlport,
+    [  --with-stlport=<path>   path to the STLPort install files directory.
+                          e.g. /usr/local/stlport])
+
+AC_ARG_WITH( stlport-include,
+    [  --with-stlport-include=<path>
+                          path to the STLPort header files directory.
+                          e.g. /usr/local/stlport/stlport])
+
+AC_ARG_WITH( stlport-lib,
+    [  --with-stlport-lib=<path>
+                          path to the STLPort library files directory.
+                          e.g. /usr/local/stlport/lib])
+
+if test "$with_debug" = "full"
+then
+ stlport_lib="stlport_gcc_debug"
+else
+ stlport_lib="stlport_gcc"
+fi
+
+if test "$with_debug" = "full"
+then
+ stlport_lib2="stlport_gcc_debug"
+else
+ stlport_lib2="stlport_gcc"
+fi
+
+if test "$with_stlport" = no
+then
+    # The user explicitly disabled the use of the STLPorts
+    AC_MSG_ERROR([STLPort is mandatory: do not specify --without-stlport])
+else
+    stlport_includes="/usr/include/stlport"
+    if test "$with_stlport" -a "$with_stlport" != yes
+    then
+        stlport_includes="$with_stlport/stlport"
+        stlport_libraries="$with_stlport/lib"
+
+        if test ! -d "$stlport_includes"
+        then
+            stlport_includes="$with_stlport/include/stlport"
+        fi
+    fi
+fi
+
+if test "$with_stlport_include"
+then
+    stlport_includes="$with_stlport_include"
+fi
+
+if test "$with_stlport_lib"
+then
+    stlport_libraries="$with_stlport_lib"
+fi
+
+# Check for the 'pthread' library. SLTPort needs it.
+AC_CHECK_LIB(pthread, main, , [AC_MSG_ERROR([cannot find the pthread library.])])
+AC_CHECK_LIB(dl, dlopen, , [AC_MSG_ERROR([cannot find the dl library.])])
+
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+
+# Put STLPorts includes in CXXFLAGS
+if test "$stlport_includes"
+then
+    CXXFLAGS="$CXXFLAGS -I$stlport_includes"
+fi
+
+# Put STLPorts libraries directory in LIBS
+if test "$stlport_libraries"
+then
+    LIBS="-L$stlport_libraries $LIBS"
+else
+    stlport_libraries='default'
+fi
+
+# Put STLPort GCC libraries directory in LIBS
+if test "$stlport_libraries2"
+then
+    LIBS="-L$stlport_libraries2 $LIBS"
+else
+    stlport_libraries2='default'
+fi
+
+# Test the headers
+
+AC_CHECK_HEADER(algorithm,
+    have_stlport_headers="yes",
+    have_stlport_headers="no" )
+
+AC_MSG_CHECKING(for STLPort headers)
+
+if test "$have_stlport_headers" = "yes"
+then
+    AC_MSG_RESULT([$stlport_includes])
+else
+    AC_MSG_RESULT(no)
+fi
+
+AC_CHECK_LIB($stlport_lib, main,, have_stlport_libraries="no")
+
+AC_MSG_CHECKING(for STLPort library)
+
+if test "$have_stlport_libraries" != "no"
+then
+    AC_MSG_RESULT([$stlport_libraries])
+else
+    AC_MSG_RESULT(no)
+fi
+
+AC_CHECK_LIB($stlport_lib2, main,, have_stlport_libraries="no")
+
+AC_MSG_CHECKING(for STLPort GCC library)
+
+if test "$have_stlport_libraries2" != "no"
+then
+    AC_MSG_RESULT([$stlport_libraries2])
+else
+    AC_MSG_RESULT(no)
+fi
+
+if test "$have_stlport_headers" = "yes" &&
+    (test "$have_stlport_libraries" != "no" || test "$have_stlport_libraries2" != "no")
+then
+    have_stlport="yes"
+else
+    have_stlport="no"
+fi
+
+if test "$have_stlport" = "no"
+then
+    AC_MSG_ERROR([STLPort must be installed (http://www.stlport.org).])
+fi
+
+AC_LANG_RESTORE
+
+])
+
+
+# =========================================================================
+# AM_PATH_OPENGL : OpenGL checking macros
+
+AC_DEFUN([AM_PATH_OPENGL],
+[ AC_MSG_CHECKING(for OpenGL headers and GL Version >= 1.2)
+
+is_mandatory="$1"
+
+AC_REQUIRE_CPP()
+
+AC_ARG_WITH( opengl,
+    [  --with-opengl=<path>    path to the OpenGL install files directory.
+                          e.g. /usr/local])
+
+AC_ARG_WITH( opengl-include,
+    [  --with-opengl-include=<path>
+                          path to the OpenGL header files directory.
+                          e.g. /usr/local/include])
+
+AC_ARG_WITH( opengl-lib,
+    [  --with-opengl-lib=<path>
+                          path to the OpenGL library files directory.
+                          e.g. /usr/local/lib])
+
+opengl_lib="GL"
+
+if test "$with_opengl"
+then
+    opengl_includes="$with_opengl/include"
+    opengl_libraries="$with_opengl/lib"
+fi
+
+if test "$with_opengl_include"
+then
+    opengl_includes="$with_opengl_include"
+fi
+
+if test "$with_opengl_lib"
+then
+    opengl_libraries="$with_opengl_lib"
+fi
+
+# Set OPENGL_CFLAGS
+if test "$opengl_includes"
+then
+    OPENGL_CFLAGS="-I$opengl_includes"
+fi
+
+# Set OPENGL_LIBS
+if test "$opengl_libraries"
+then
+    OPENGL_LIBS="-L$opengl_libraries"
+fi
+OPENGL_LIBS="$OPENGL_LIBS -l$opengl_lib"
+
+# Test the headers
+_CPPFLAGS="$CPPFLAGS"
+
+CPPFLAGS="$CXXFLAGS $OPENGL_CFLAGS"
+
+AC_EGREP_CPP( yo_opengl,
+[#include <GL/gl.h>       
+#if defined(GL_VERSION_1_2)
+   yo_opengl
+#endif],
+  have_opengl_headers="yes", 
+  have_opengl_headers="no" )
+
+if test "$have_opengl_headers" = "yes"
+then
+    if test "$opengl_includes"
+    then
+        AC_MSG_RESULT([$opengl_includes])
+    else
+        AC_MSG_RESULT(yes)
+    fi
+else
+    AC_MSG_RESULT(no)
+fi
+
+# Checking the GLEXT version >= 7
+AC_MSG_CHECKING(for <GL/glext.h> and GLEXT version >= 7)
+
+AC_EGREP_CPP( yo_glext_version,
+[#include <GL/glext.h>
+#ifdef GL_GLEXT_VERSION
+#if GL_GLEXT_VERSION >= 7
+   yo_glext_version
+#endif
+#endif],
+  have_glext="yes",
+  have_glext="no" )
+
+if test "$have_glext" = "yes"
+then
+    AC_MSG_RESULT(yes)
+else
+    AC_MSG_RESULT([no, <GL/glext.h> can be downloaded from http://oss.sgi.com/projects/ogl-sample/ABI/])
+fi
+    
+# Test the libraries
+AC_MSG_CHECKING(for OpenGL libraries)
+
+CPPFLAGS="$CXXFLAGS $OPENGL_LIBS"
+
+AC_TRY_LINK( , , have_opengl_libraries="yes", have_opengl_libraries="no")
+
+CPPFLAGS="$_CPPFLAGS"
+
+if test "$have_opengl_libraries" = "yes"
+then
+    if test "$opengl_libraries"
+    then
+        AC_MSG_RESULT([$opengl_libraries])
+    else
+        AC_MSG_RESULT(yes)
+    fi
+else
+    AC_MSG_RESULT(no)
+fi
+
+opengl_libraries="$opengl_libraries"
+
+if test "$have_opengl_headers" = "yes" \
+        -a "$have_glext" = "yes" \
+        -a "$have_opengl_libraries" = "yes"
+then
+    have_opengl="yes"
+else
+    have_opengl="no"
+fi
+
+if test "$have_opengl" = "no" -a "$is_mandatory" = "yes"
+then
+    AC_MSG_ERROR([OpenGL >= 1.2 must be installed (http://www.mesa3d.org)])
+fi
+
+AC_SUBST(OPENGL_CFLAGS)
+AC_SUBST(OPENGL_LIBS)
+
+])
+
+
+# =========================================================================
+# AM_PATH_FREETYPE : FreeType checking macros
+
+AC_DEFUN([AM_PATH_FREETYPE],
+[ is_mandatory="$1"
+
+AC_REQUIRE_CPP()
+
+AC_ARG_WITH( freetype,
+    [  --with-freetype=<path>   path to the FreeType install files directory.
+                          e.g. /usr/local/freetype])
+
+AC_ARG_WITH( freetype-include,
+    [  --with-freetype-include=<path>
+                          path to the FreeType header files directory.
+                          e.g. /usr/local/freetype/include])
+
+AC_ARG_WITH( freetype-lib,
+    [  --with-freetype-lib=<path>
+                          path to the FreeType library files directory.
+                          e.g. /usr/local/freetype/lib])
+
+freetype_lib="freetype"
+
+
+AC_PATH_PROG(FREETYPE_CONFIG, freetype-config, no)
+  
+if test "$FREETYPE_CONFIG" = "no"
+then
+    have_freetype_config="no"
+else
+    FREETYPE_CFLAGS=`freetype-config --cflags`
+    FREETYPE_LIBS=`freetype-config --libs`
+    have_freetype_config="yes"
+fi
+
+if test "$with_freetype"
+then
+    freetype_includes="$with_freetype/include"
+    freetype_libraries="$with_freetype/lib"
+fi
+
+if test "$with_freetype_include"
+then
+    freetype_includes="$with_freetype_include"
+fi
+
+if test "$with_freetype_lib"
+then
+    freetype_libraries="$with_freetype_lib"
+fi
+
+if test "$freetype_includes"
+then
+    FREETYPE_CFLAGS="-I$freetype_includes"
+fi
+
+# Checking the FreeType 2 instalation
+_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS=" $FREETYPE_CFLAGS $CXXFLAGS"
+
+AC_MSG_CHECKING(for FreeType version = 2)
+
+AC_EGREP_CPP( yo_freetype2,
+[#include <freetype/freetype.h>
+#if FREETYPE_MAJOR == 2
+   yo_freetype2
+#endif],
+  have_freetype2="yes",
+  have_freetype2="no")
+
+if test "$have_freetype2" = "yes"
+then
+    AC_MSG_RESULT(yes)
+else
+    AC_MSG_RESULT(no)
+fi
+    
+# Test the libraries
+AC_MSG_CHECKING(for FreeType libraries)
+        
+if test $freetype_libraries
+then
+    FREETYPE_LIBS="-L$freetype_libraries -l$freetype_lib"
+fi
+
+CPPFLAGS="$FREETYPE_LIBS $CXXFLAGS"
+    
+AC_TRY_LINK( , , have_freetype_libraries="yes", have_freetype_libraries="no")
+
+CPPFLAGS="$_CPPFLAGS"
+
+if test "$have_freetype_libraries" = "yes"
+then    
+    if test "$freetype_libraries"
+    then
+        AC_MSG_RESULT([$freetype_libraries])
+    else
+        AC_MSG_RESULT(yes)
+    fi
+else
+    AC_MSG_RESULT(no)
+fi
+
+if test "$have_freetype2" = "yes" && test "$have_freetype_libraries" = "yes"
+then
+    have_freetype="yes"
+else
+    have_freetype="no"
+fi
+
+if test "$have_freetype" = "no" && test "$is_mandatory" = "yes"
+then
+    AC_MSG_ERROR([FreeType 2 must be installed (http://freetype.sourceforge.net)])
+fi
+
+AC_SUBST(FREETYPE_CFLAGS)
+AC_SUBST(FREETYPE_LIBS)
+
+])
+
+
+# =========================================================================
+# AM_PATH_XF86VIDMODE : XF86VidMode checking macros
+
+AC_DEFUN([AM_PATH_XF86VIDMODE],
+[ AC_MSG_CHECKING(for XF86VidMode extension)
+
+AC_REQUIRE_CPP()
+
+AC_ARG_WITH( xf86vidmode-lib,
+    [  --with-xf86vidmode-lib=<path>
+                          path to the XF86VidMode library.
+                          e.g. /usr/X11R6/lib] )
+
+xf86vidmode_lib="Xxf86vm"
+
+if test "$with_xf86vidmode_lib" = no
+then
+    # The user explicitly disabled the use of XF86VidMode
+    have_xf86vidmode="disabled"
+    AC_MSG_RESULT(disabled)
+else
+    if test "$with_xf86vidmode_lib"
+    then
+        xf86vidmode_libraries="$with_xf86vidmode_lib"
+    fi
+
+    XF86VIDMODE_CFLAGS="-DXF86VIDMODE"
+fi
+
+if test -z "$have_xf86vidmode"
+# -a "$with_xf86vidmode_lib"
+then
+    if test "$xf86vidmode_libraries"
+    then
+        XF86VIDMODE_LIBS="-L$xf86vidmode_libraries"
+    fi
+
+    XF86VIDMODE_LIBS="$XF86VIDMODE_LIBS -l$xf86vidmode_lib"
+
+    _CPPFLAGS="$CPPFLAGS"
+
+    CPPFLAGS="$CXXFLAGS $XF86VIDMODE_LIBS"
+
+    AC_TRY_LINK( , , have_xf86vidmode_libraries="yes", have_xf86vidmode_libraries="no")
+
+    CPPFLAGS="$_CPPFLAGS"
+
+    if test "$have_xf86vidmode_libraries" = "yes"
+    then
+        have_xf86vidmode="yes"
+        if test "$xf86vidmode_libraries"
+        then
+            AC_MSG_RESULT($xf86vidmode_libraries)
+        else
+            AC_MSG_RESULT(yes)
+        fi
+    else
+        have_xf86vidmode="no"
+        AC_MSG_RESULT(no, no fullscreen support available.)
+    fi
+
+    xf86vidmode_libraries="$xf86vidmode_libraries"
+
+fi
+
+AC_SUBST(XF86VIDMODE_CFLAGS)
+AC_SUBST(XF86VIDMODE_LIBS)
+
+])
+
+
+# =========================================================================
+# AM_PATH_OPENAL : OpenAL checking macros
+
+AC_DEFUN([AM_PATH_OPENAL],
+[ is_mandatory="$1"
+
+AC_REQUIRE_CPP()
+
+# Get from the user option the path to the OpenAL files location
+AC_ARG_WITH( openal,
+    [  --with-openal=<path>   path to the OpenAL install files directory.
+                          e.g. /usr/local])
+
+AC_ARG_WITH( openal-include,
+    [  --with-openal-include=<path>
+                          path to the OpenAL header files directory.
+                          e.g. /usr/local/include])
+
+AC_ARG_WITH( openal-lib,
+    [  --with-openal-lib=<path>
+                          path to the OpenAL library files directory.
+                          e.g. /usr/local/lib])
+
+openal_lib="openal"
+
+if test $with_openal
+then
+    openal_includes="$with_openal/include"
+    openal_libraries="$with_openal/lib"
+fi
+
+if test "$with_openal_include"
+then
+    openal_includes="$with_openal_include"
+fi
+
+if test "$with_openal_lib"
+then
+    openal_libraries="$with_openal_lib"
+fi
+
+
+# Set OPENAL_CFLAGS
+if test "$openal_includes"
+then
+    OPENAL_CFLAGS="-I$openal_includes"
+fi
+
+# Set OPENAL_LIBS
+if test "$openal_libraries"
+then
+    OPENAL_LIBS="-L$openal_libraries"
+fi
+OPENAL_LIBS="$OPENAL_LIBS -l$openal_lib"
+
+_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="$CXXFLAGS $OPENAL_CFLAGS"
+
+AC_MSG_CHECKING(for OpenAL headers)
+AC_EGREP_CPP( yo_openal,
+[#include <AL/altypes.h>
+#ifdef AL_VERSION
+   yo_openal
+#endif],
+  have_openal_headers="yes",
+  have_openal_headers="no" )
+
+if test "$have_openal_headers" = "yes"
+then
+    if test "$openal_includes"
+    then
+        AC_MSG_RESULT([$openal_includes])
+    else
+        AC_MSG_RESULT(yes)
+    fi
+else
+    AC_MSG_RESULT(no)
+fi
+
+# Test the libraries
+AC_MSG_CHECKING(for OpenAL libraries)
+
+CPPFLAGS="$CXXFLAGS $OPENAL_LIBS"
+
+AC_TRY_LINK( , , have_openal_libraries="yes", have_openal_libraries="no")
+
+CPPFLAGS="$_CPPFLAGS"
+
+if test "$have_openal_libraries" = "yes"
+then
+    if test "$openal_libraries"
+    then
+        AC_MSG_RESULT([$openal_libraries])
+    else
+        AC_MSG_RESULT(yes)
+    fi
+else
+    AC_MSG_RESULT(no)
+fi
+
+openal_libraries="$openal_libraries"
+
+if test "$have_openal_headers" = "yes" \
+   && test "$have_openal_libraries" = "yes"
+then
+    have_openal="yes"
+else
+    have_openal="no"
+fi
+
+if test "$have_openal" = "no" -a "$is_mandatory" = "yes"
+then
+    AC_MSG_ERROR([OpenAL is needed to compile NeL (http://www.openal.org).])
+fi
+
+AC_SUBST(OPENAL_CFLAGS)
+AC_SUBST(OPENAL_LIBS)
+
+
+])
+
+
+# =========================================================================
+# AM_PATH_PYTHON : Python checking macros
+
+AC_DEFUN([AM_PATH_PYTHON],
+[ python_version_required="$1"
+
+is_mandatory="$2"
+
+AC_REQUIRE_CPP()
+
+# Get from the user option the path to the Python files location
+AC_ARG_WITH( python,
+    [  --with-python=<path>    path to the Python prefix installation directory.
+                          e.g. /usr/local],
+    [ PYTHON_PREFIX=$with_python ]
+)
+
+AC_ARG_WITH( python-version,
+    [  --with-python-version=<version>
+                          Python version to use, e.g. 1.5],
+    [ PYTHON_VERSION=$with_python_version ]
+)
+
+if test ! "$PYTHON_PREFIX" = ""
+then
+    PATH="$PYTHON_PREFIX/bin:$PATH"
+fi
+
+if test ! "$PYTHON_VERSION" = ""
+then
+    PYTHON_EXEC="python$PYTHON_VERSION"
+else
+    PYTHON_EXEC="python python2.1 python2.0 python1.5"
+fi
+
+AC_PATH_PROGS(PYTHON, $PYTHON_EXEC, no, $PATH)
+
+if test "$PYTHON" != "no"
+then
+    PYTHON_PREFIX=`$PYTHON -c 'import sys; print "%s" % (sys.prefix)'`
+    PYTHON_VERSION=`$PYTHON -c 'import sys; print "%s" % (sys.version[[:3]])'`
+
+    is_python_version_enough=`expr $python_version_required \<= $PYTHON_VERSION`
+fi
+
+
+if test "$PYTHON" = "no" || test "$is_python_version_enough" != "1"
+then
+
+    if test "$is_mandatory" = "yes"
+    then
+        AC_MSG_ERROR([Python $python_version_required must be installed (http://www.python.org)])
+    else
+        have_python="no"
+    fi
+
+else
+
+    python_includes="$PYTHON_PREFIX/include/python$PYTHON_VERSION"
+    python_libraries="$PYTHON_PREFIX/lib/python$PYTHON_VERSION/config"
+    python_lib="python$PYTHON_VERSION"
+
+    PYTHON_CFLAGS="-I$python_includes"
+    PYTHON_LIBS="-L$python_libraries -l$python_lib"
+
+    _CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CXXFLAGS ${PYTHON_CFLAGS}"
+
+    # Test the headers
+    AC_MSG_CHECKING(for Python headers)
+
+    AC_EGREP_CPP( yo_python,
+    [#include <Python.h>
+   yo_python
+    ],
+      have_python_headers="yes",
+      have_python_headers="no" )
+
+    if test "$have_python_headers" = "yes"
+    then
+        AC_MSG_RESULT([$python_includes])
+    else
+        AC_MSG_RESULT(no)
+    fi
+
+    # Test the libraries
+    AC_MSG_CHECKING(for Python libraries)
+
+    CPPFLAGS="$CXXFLAGS $PYTHON_CFLAGS"
+
+    AC_TRY_LINK( , , have_python_libraries="yes", have_python_libraries="no")
+
+    CPPFLAGS="$_CPPFLAGS"
+
+    if test "$have_python_libraries" = "yes"
+    then
+        if test "$python_libraries"
+        then
+            AC_MSG_RESULT([$python_libraries])
+        else
+            AC_MSG_RESULT(yes)
+        fi
+    else
+        AC_MSG_RESULT(no)
+    fi
+
+    if test "$have_python_headers" = "yes" \
+       && test "$have_python_libraries" = "yes"
+    then
+        have_python="yes"
+    else
+        have_python="no"
+    fi
+
+    if test "$have_python" = "no" -a "$is_mandatory" = "yes"
+    then
+        AC_MSG_ERROR([Python is needed to compile NeL (http://www.python.org).])
+    fi
+
+    AC_SUBST(PYTHON_CFLAGS)
+    AC_SUBST(PYTHON_LIBS)
+
+fi
+
+])
+
+
+# =========================================================================
+# AM_PATH_CCACHE : Ccache checking macros
+
+AC_DEFUN([AM_PATH_CCACHE],
+[
+
+AC_ARG_WITH( ccache,
+    [  --with-ccache           use ccache for compiling.],
+    [ using_ccache=$with_ccache ]
+)
+
+AC_PATH_PROG(CCACHE, ccache)
+if test "$CCACHE" -a "$using_ccache" = "yes"
+then
+    CC="ccache $CC"
+    CXX="ccache $CXX"
+fi
+
+])
+
+# =========================================================================
+# AM_PATH_MYSQL : MySQL library
+
+# AM_PATH_MYSQL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+# Test for MYSQL, and define MYSQL_CFLAGS and MYSQL_LIBS
+#
+AC_DEFUN([AM_PATH_MYSQL],
+[# 
+# Get the cflags and libraries from the mysql_config script
+#
+AC_ARG_WITH(mysql-prefix,[  --with-mysql-prefix=PFX   Prefix where MYSQL is installed (optional)],
+            mysql_prefix="$withval", mysql_prefix="")
+AC_ARG_WITH(mysql-exec-prefix,[  --with-mysql-exec-prefix=PFX Exec prefix where MYSQL is installed (optional)],
+            mysql_exec_prefix="$withval", mysql_exec_prefix="")
+AC_ARG_ENABLE(mysqltest, [  --disable-mysqltest       Do not try to compile and run a test MYSQL program],
+		    , enable_mysqltest=yes)
+
+  if test x$mysql_exec_prefix != x ; then
+     mysql_args="$mysql_args --exec-prefix=$mysql_exec_prefix"
+     if test x${MYSQL_CONFIG+set} != xset ; then
+        MYSQL_CONFIG=$mysql_exec_prefix/bin/mysql_config
+     fi
+  fi
+  if test x$mysql_prefix != x ; then
+     mysql_args="$mysql_args --prefix=$mysql_prefix"
+     if test x${MYSQL_CONFIG+set} != xset ; then
+        MYSQL_CONFIG=$mysql_prefix/bin/mysql_config
+     fi
+  fi
+
+  AC_REQUIRE([AC_CANONICAL_TARGET])
+  AC_PATH_PROG(MYSQL_CONFIG, mysql_config, no)
+  min_mysql_version=ifelse([$1], ,0.11.0,$1)
+  AC_MSG_CHECKING(for MYSQL - version >= $min_mysql_version)
+  no_mysql=""
+  if test "$MYSQL_CONFIG" = "no" ; then
+    no_mysql=yes
+  else
+    MYSQL_CFLAGS=`$MYSQL_CONFIG $mysqlconf_args --cflags | sed -e "s/'//g"`
+    MYSQL_LIBS=`$MYSQL_CONFIG $mysqlconf_args --libs | sed -e "s/'//g"`
+
+    mysql_major_version=`$MYSQL_CONFIG $mysql_args --version | \
+           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+    mysql_minor_version=`$MYSQL_CONFIG $mysql_args --version | \
+           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+    mysql_micro_version=`$MYSQL_CONFIG $mysql_config_args --version | \
+           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+    if test "x$enable_mysqltest" = "xyes" ; then
+      ac_save_CFLAGS="$CFLAGS"
+      ac_save_LIBS="$LIBS"
+      CFLAGS="$CFLAGS $MYSQL_CFLAGS"
+      LIBS="$LIBS $MYSQL_LIBS"
+#
+# Now check if the installed MYSQL is sufficiently new. (Also sanity
+# checks the results of mysql_config to some extent
+#
+      rm -f conf.mysqltest
+      AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <mysql.h>
+
+char*
+my_strdup (char *str)
+{
+  char *new_str;
+  
+  if (str)
+    {
+      new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
+      strcpy (new_str, str);
+    }
+  else
+    new_str = NULL;
+  
+  return new_str;
+}
+
+int main (int argc, char *argv[])
+{
+  int major, minor, micro;
+  char *tmp_version;
+
+  /* This hangs on some systems (?)
+  system ("touch conf.mysqltest");
+  */
+  { FILE *fp = fopen("conf.mysqltest", "a"); if ( fp ) fclose(fp); }
+
+  /* HP/UX 9 (%@#!) writes to sscanf strings */
+  tmp_version = my_strdup("$min_mysql_version");
+  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
+     printf("%s, bad version string\n", "$min_mysql_version");
+     exit(1);
+   }
+
+   if (($mysql_major_version > major) ||
+      (($mysql_major_version == major) && ($mysql_minor_version > minor)) ||
+      (($mysql_major_version == major) && ($mysql_minor_version == minor) && ($mysql_micro_version >= micro)))
+    {
+      return 0;
+    }
+  else
+    {
+      printf("\n*** 'mysql_config --version' returned %d.%d.%d, but the minimum version\n", $mysql_major_version, $mysql_minor_version, $mysql_micro_version);
+      printf("*** of MYSQL required is %d.%d.%d. If mysql_config is correct, then it is\n", major, minor, micro);
+      printf("*** best to upgrade to the required version.\n");
+      printf("*** If mysql_config was wrong, set the environment variable MYSQL_CONFIG\n");
+      printf("*** to point to the correct copy of mysql_config, and remove the file\n");
+      printf("*** config.cache before re-running configure\n");
+      return 1;
+    }
+}
+
+],, no_mysql=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+       CFLAGS="$ac_save_CFLAGS"
+       LIBS="$ac_save_LIBS"
+     fi
+  fi
+  if test "x$no_mysql" = x ; then
+     AC_MSG_RESULT(yes)
+     ifelse([$2], , :, [$2])     
+  else
+     AC_MSG_RESULT(no)
+     if test "$MYSQL_CONFIG" = "no" ; then
+       echo "*** The mysql_config script installed by MYSQL could not be found"
+       echo "*** If MYSQL was installed in PREFIX, make sure PREFIX/bin is in"
+       echo "*** your path, or set the MYSQL_CONFIG environment variable to the"
+       echo "*** full path to mysql_config."
+     else
+       if test -f conf.mysqltest ; then
+        :
+       else
+          echo "*** Could not run MYSQL test program, checking why..."
+          CFLAGS="$CFLAGS $MYSQL_CFLAGS"
+          LIBS="$LIBS $MYSQL_LIBS"
+          AC_TRY_LINK([
+#include <stdio.h>
+#include <mysql.h>
+
+int main(int argc, char *argv[])
+{ return 0; }
+#undef  main
+#define main K_and_R_C_main
+],      [ return 0; ],
+        [ echo "*** The test program compiled, but did not run. This usually means"
+          echo "*** that the run-time linker is not finding MYSQL or finding the wrong"
+          echo "*** version of MYSQL. If it is not finding MYSQL, you'll need to set your"
+          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
+          echo "*** is required on your system"
+	  echo "***"
+          echo "*** If you have an old version installed, it is best to remove it, although"
+          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+        [ echo "*** The test program failed to compile or link. See the file config.log for the"
+          echo "*** exact error that occured. This usually means MYSQL was incorrectly installed"
+          echo "*** or that you have moved MYSQL since it was installed. In the latter case, you"
+          echo "*** may want to edit the mysql_config script: $MYSQL_CONFIG" ])
+          CFLAGS="$ac_save_CFLAGS"
+          LIBS="$ac_save_LIBS"
+       fi
+     fi
+     MYSQL_CFLAGS=""
+     MYSQL_LIBS=""
+     ifelse([$3], , :, [$3])
+  fi
+  AC_SUBST(MYSQL_CFLAGS)
+  AC_SUBST(MYSQL_LIBS)
+  rm -f conf.mysqltest
+])
+
+# =========================================================================
+# AM_PATH_FMOD : FMOD checking macros
+
+AC_DEFUN([AM_PATH_FMOD],
+[ is_mandatory="$1"
+
+AC_REQUIRE_CPP()
+
+# Get from the user option the path to the FMOD files location
+AC_ARG_WITH( fmod,
+    [  --with-fmod=<path>   path to the FMOD install files directory.
+                          e.g. /usr/local])
+
+AC_ARG_WITH( fmod-include,
+    [  --with-fmod-include=<path>
+                          path to the FMOD header files directory.
+                          e.g. /usr/local/include])
+
+AC_ARG_WITH( fmod-lib,
+    [  --with-fmod-lib=<path>
+                          path to the FMOD library files directory.
+                          e.g. /usr/local/lib])
+
+fmod_lib="fmod"
+
+if test $with_fmod
+then
+    fmod_includes="$with_fmod/include"
+    fmod_libraries="$with_fmod/lib"
+fi
+
+if test "$with_fmod_include"
+then
+    fmod_includes="$with_fmod_include"
+fi
+
+if test "$with_fmod_lib"
+then
+    fmod_libraries="$with_fmod_lib"
+fi
+
+
+# Set FMOD_CFLAGS
+if test "$fmod_includes"
+then
+    FMOD_CFLAGS="-I$fmod_includes"
+fi
+
+# Set FMOD_LIBS
+if test "$fmod_libraries"
+then
+    FMOD_LIBS="-L$fmod_libraries"
+fi
+FMOD_LIBS="$FMOD_LIBS -l$fmod_lib"
+
+_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="$CXXFLAGS $FMOD_CFLAGS"
+
+AC_MSG_CHECKING(for FMOD headers)
+AC_EGREP_CPP( yo_fmod,
+[#include <fmod.h>
+#ifdef FMOD_VERSION
+   yo_fmod
+#endif],
+  have_fmod_headers="yes",
+  have_fmod_headers="no" )
+
+if test "$have_fmod_headers" = "yes"
+then
+    if test "$fmod_includes"
+    then
+        AC_MSG_RESULT([$fmod_includes])
+    else
+        AC_MSG_RESULT(yes)
+    fi
+else
+    AC_MSG_RESULT(no)
+fi
+
+# Test the libraries
+AC_MSG_CHECKING(for FMOD libraries)
+
+CPPFLAGS="$CXXFLAGS $FMOD_LIBS"
+
+AC_TRY_LINK( , , have_fmod_libraries="yes", have_fmod_libraries="no")
+
+CPPFLAGS="$_CPPFLAGS"
+
+if test "$have_fmod_libraries" = "yes"
+then
+    if test "$fmod_libraries"
+    then
+        AC_MSG_RESULT([$fmod_libraries])
+    else
+        AC_MSG_RESULT(yes)
+    fi
+else
+    AC_MSG_RESULT(no)
+fi
+
+fmod_libraries="$fmod_libraries"
+
+if test "$have_fmod_headers" = "yes" \
+   && test "$have_fmod_libraries" = "yes"
+then
+    have_fmod="yes"
+else
+    have_fmod="no"
+fi
+
+if test "$have_fmod" = "no" -a "$is_mandatory" = "yes"
+then
+    AC_MSG_ERROR([FMOD is needed to compile NeL (http://www.fmod.org).])
+fi
+
+AC_SUBST(FMOD_CFLAGS)
+AC_SUBST(FMOD_LIBS)
+
+])
+
+# =========================================================================
+# End of file
+