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

AC_INIT([sdlvisualtest], [0.01], [apoorvupreti@gmail.com])

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 We only care about this for building testnative at the moment, so these

dnl  values shouldn't be considered absolute truth.

dnl  (BeOS, for example, sets none of these.)

ISUNIX="false"

ISWINDOWS="false"

ISMACOSX="false"

dnl Figure out which math or extra library to use

case "$host" in

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

        ISWINDOWS="true"

        EXE=".exe"

        MATHLIB=""

        EXTRALIB="-lshlwapi"

        SYS_GL_LIBS="-lopengl32"

        ;;

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

        EXE=""

        MATHLIB=""

        EXTRALIB=""

        SYS_GL_LIBS="-lGL"

        ;;

    *-*-darwin* )

        ISMACOSX="true"

        EXE=""

        MATHLIB=""

        EXTRALIB=""

        ;;

    *-*-aix*)

        ISUNIX="true"

        EXE=""

        if test x$ac_cv_prog_gcc = xyes; then

            CFLAGS="-mthreads"

        fi

        MATHLIB=""

        EXTRALIB=""

        SYS_GL_LIBS=""

        ;;

    *-*-mint*)

        EXE=""

        MATHLIB=""

        EXTRALIB=""

        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

        ;;

    *-*-qnx*)

        EXE=""

        MATHLIB=""

        EXTRALIB=""

        SYS_GL_LIBS="-lGLES_CM"

        ;;

    *)

        dnl Oh well, call it Unix...

        ISUNIX="true"

        EXE=""

        MATHLIB="-lm"

        EXTRALIB=""

        SYS_GL_LIBS="-lGL"

        ;;

esac

AC_SUBST(EXE)

AC_SUBST(MATHLIB)

AC_SUBST(EXTRALIB)

AC_SUBST(ISMACOSX)

AC_SUBST(ISWINDOWS)

AC_SUBST(ISUNIX)

dnl Check for SDL

SDL_VERSION=2.0.0

AM_PATH_SDL2($SDL_VERSION,

            :,

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

)

CFLAGS="$CFLAGS $SDL_CFLAGS"

LIBS="$LIBS -lSDL2_test $SDL_LIBS $EXTRALIB"

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)

dnl Check for OpenGL ES

AC_MSG_CHECKING(for OpenGL ES support)

have_opengles=no

AC_TRY_COMPILE([

 #if defined (__IPHONEOS__)

    #include <OpenGLES/ES1/gl.h>

 #else

    #include <GLES/gl.h>

 #endif /* __QNXNTO__ */

],[

],[

have_opengles=yes

])

AC_MSG_RESULT($have_opengles)

GLLIB=""

if test x$have_opengles = xyes; then

    CFLAGS="$CFLAGS -DHAVE_OPENGLES"

    GLLIB="$XPATH -lGLESv1_CM"

elif test x$have_opengl = xyes; then

    CFLAGS="$CFLAGS -DHAVE_OPENGL"

    GLLIB="$XPATH $SYS_GL_LIBS"

else

    GLLIB=""

fi

AC_SUBST(GLLIB)

dnl Check for SDL_ttf

AC_CHECK_LIB(SDL2_ttf, TTF_Init, have_SDL_ttf=yes)

if test x$have_SDL_ttf = xyes; then

    CFLAGS="$CFLAGS -DHAVE_SDL_TTF"

    SDL_TTF_LIB="-lSDL2_ttf"

fi

AC_SUBST(SDL_TTF_LIB)

dnl Finally create all the generated files

dnl AC_OUTPUT([Makefile])

AC_CONFIG_HEADERS([config.h])

AC_CONFIG_FILES([Makefile])

AC_OUTPUT()