dnl Process this file with autoconf to produce a configure script.

AC_INIT(README)

dnl Detect the canonical build and host environments

AC_CONFIG_AUX_DIRS($srcdir/../build-scripts)

AC_CANONICAL_HOST

dnl Check for tools

AC_PROG_CC

dnl Check for compiler environment

AC_C_CONST

dnl Figure out which math library to use

case "$host" in

*-*-cygwin* | *-*-mingw32*)

EXE=".exe"

MATHLIB=""

SYS_GL_LIBS="-lopengl32"

;;

*-*-beos* | *-*-haiku*)

EXE=""

MATHLIB=""

SYS_GL_LIBS="-lGL"

;;

*-*-darwin* )

EXE=""

MATHLIB=""

SYS_GL_LIBS="-Wl,-framework,OpenGL"

;;

*-*-aix*)

EXE=""

if test x$ac_cv_prog_gcc = xyes; then

CFLAGS="-mthreads"

fi

SYS_GL_LIBS=""

;;

*-*-mint*)

EXE=""

MATHLIB=""

AC_PATH_PROG(OSMESA_CONFIG, osmesa-config, no)

if test "x$OSMESA_CONFIG" = "xyes"; then

OSMESA_CFLAGS=`$OSMESA_CONFIG --cflags`

OSMESA_LIBS=`$OSMESA_CONFIG --libs`

CFLAGS="$CFLAGS $OSMESA_CFLAGS"

SYS_GL_LIBS="$OSMESA_LIBS"

else

SYS_GL_LIBS="-lOSMesa"

fi

;;

*-*-riscos*)

EXE=",e1f"

MATHLIB=""

SYS_GL_LIBS=""

;;

*)

EXE=""

MATHLIB="-lm"

SYS_GL_LIBS="-lGL"

;;

esac

AC_SUBST(EXE)

AC_SUBST(MATHLIB)

dnl Check for SDL

SDL_VERSION=1.2.10

AM_PATH_SDL($SDL_VERSION,

:,

AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])

)

CFLAGS="$CFLAGS $SDL_CFLAGS"

LIBS="$LIBS $SDL_LIBS"

dnl Check for X11 path, needed for OpenGL on some systems

AC_PATH_X

if test x$have_x = xyes; then

if test x$ac_x_includes = xno || test x$ac_x_includes = x; then

:

else

CFLAGS="$CFLAGS -I$ac_x_includes"

fi

if test x$ac_x_libraries = xno || test x$ac_x_libraries = x; then

:

else

XPATH="-L$ac_x_libraries"

fi

fi

dnl Check for OpenGL

AC_MSG_CHECKING(for OpenGL support)

have_opengl=no

AC_TRY_COMPILE([

#include "SDL_opengl.h"

],[

],[

have_opengl=yes

])

AC_MSG_RESULT($have_opengl)

if test x$have_opengl = xyes; then

CFLAGS="$CFLAGS -DHAVE_OPENGL"

GLLIB="$XPATH $SYS_GL_LIBS"

else

GLLIB=""

fi

AC_SUBST(GLLIB)

dnl Finally create all the generated files

AC_OUTPUT([Makefile])