AC_INIT(src/Evas.h)
AM_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE(evas, 0.0.1)
AC_C_BIGENDIAN
AC_PROG_CC
AM_PROG_CC_STDC
AM_WITH_DMALLOC
AC_C_CONST
AM_ENABLE_SHARED
AM_PROG_LIBTOOL
if test X"$enable_shared" = Xyes; then
  DLLDFLAGS=-export-dynamic
  AC_SUBST(DLLDFLAGS)
fi
AC_PROG_INSTALL
AC_PROG_MAKE_SET

#### Find out about X
AC_PATH_X
AC_PATH_XTRA

if test "x$x_includes" = "x"; then
  x_includes="/usr/include"
fi

x_cflags="$X_CFLAGS"
x_ldflags="$X_LDFLAGS"
x_libs="$X_LIBS $X_EXTRA_LIBS"

AC_CHECK_LIB(X11, XOpenDisplay, x_libs="$x_libs",
  AC_MSG_ERROR([ERROR: libX11 not found.]); exit,
  $X_LDFLAGS $X_EXTRA_LIBS $X_LIBS)
AC_CHECK_LIB(Xext, XShmAttach, x_libs="-lXext $x_libs",
	     AC_CHECK_LIB(XextSam, XShmAttach,
		          x_libs="-lXextSam -lXext $x_libs",
			  AC_MSG_ERROR([ERROR: XShm not found.]); exit, 
			  $x_libs),
	     $x_libs)
AC_CHECK_LIB(Xext, XShapeCombineMask, x_libs="-lXext $x_libs",
             AC_MSG_ERROR([ERROR: XShape not found.]); exit,
	     $x_libs)

#### Find out about E db
#AC_CHECK_HEADER(Edb.h,
#AC_CHECK_LIB(edb, e_db_open, ,[
#echo ""
#echo "ERROR: E db needed"
#echo ""
#AC_MSG_ERROR([Fatal Error: no E db detected.]); exit], -L/usr/local/lib -ldb)
#)

#### Find out about Imlib2
AC_CHECK_HEADER(Imlib2.h,
AC_CHECK_LIB(Imlib2, imlib_context_set_image, ,[
echo ""
echo "ERROR: Imlib 2 needed"
echo ""
AC_MSG_ERROR([Fatal Error: no Imlib2 detected.]); exit], -L/usr/X11R6/lib -L/usr/local/lib -lm -ldl -lttf -lX11 -lXext)
)

AC_CHECK_LIB(ttf, TT_Init_FreeType, TTF_LIBS=-lttf, [
echo ""
echo "ERROR: Evas needs a system with libttf.so (TrueType Font Library)"
echo "You can obtain it from:"
echo "ftp://ftp.enlightenment.org/pub/enlightenment/"
echo "You can also obtain it from:"
echo "http://www.freetype.org/"
echo "You can obtain some truetype fonts from:"
echo "http://voyager.cns.ohiou.edu/~sadkins/web_library/fonts/font_archive/"
echo ""
AC_MSG_ERROR([Fatal Error: no FreeType detected.])], -lm)

AC_CHECK_HEADERS(freetype.h freetype/freetype.h,[ break] , )

AC_CHECK_HEADER(freetype.h, [ ftype=yes ], [ ftype=no ])
AC_CHECK_HEADER(freetype/freetype.h, [ ftype_ftype=yes ], [ ftype_ftype=no ])

if test x$ftype = xno; then
if test x$ftype_ftype = xno; then
echo ""
echo "ERROR: freetype.h not found in freetype.h or freetype/freetype.h include"
echo "paths. (ie /usr/include, /usr/local/include etc.). You need the freetype"
echo "header files to build Evas. This may mean you have to install the"
echo "freetype-devel packages for your distribution or if all else fails"
echo "find the source for freetype and install that somewhere where Evas"
echo "can find the header files."
echo ""
echo "You can obtain it from:"
echo "ftp://ftp.enlightenment.org/pub/enlightenment/"
echo "You can also obtain it from:"
echo "http://www.freetype.org/"
echo "You can obtain some truetype fonts from:"
echo "http://voyager.cns.ohiou.edu/~sadkins/web_library/fonts/font_archive/"
echo ""
AC_MSG_ERROR([Fatal Error: no FreeType header files detected.])
fi
fi


gl_includes=""
#### Find out about OpenGL
PREV_CPPFLAGS=$CPPFLAGS
CPPFLAGS=$CPPFLAGS" -I/usr/include -I/usr/local/include "$x_cflags
AC_TRY_CPP(GL/gl.h,
echo "checking for GL/gl.h... yes"
gl_includes="-I/usr/include -I/usr/local/include "$x_cflags
AC_CHECK_LIB(GL, glBindTexture, have_gl=yes,[
], -L/usr/local/lib -lGL $X_LDFLAGS $X_EXTRA_LIBS $X_LIBS)
)
if test "x$have_gl" = "xyes"; then
  gl_includes=$gl_includes" -I/usr/include -I/usr/local/include"
  gl_ldflags=$gl_ldflags" -L/usr/local/lib"
  gl_libs=$gl_libs" -lGL"
  AC_DEFINE(HAVE_GL)
  AC_TRY_CPP(GL/glu.h,
  echo "checking for GL/glu.h... yes"
  gl_includes="-I/usr/include -I/usr/local/include "$x_cflags
  AC_CHECK_LIB(GLU, gluBuild2DMipmaps, have_glu=yes,[
  ], -L/usr/local/lib -lGL -lGLU $X_LDFLAGS $X_EXTRA_LIBS $X_LIBS)
  )
  if test "x$have_glu" = "xyes"; then
    gl_includes=$gl_includes" -I/usr/include -I/usr/local/include"
    gl_ldflags=$gl_ldflags" -L/usr/local/lib"
    gl_libs=$gl_libs" -lGLU"
    AC_DEFINE(HAVE_GLU)
  else
    echo "WARNING:......."
    echo "no libGLU was found. This means filtered (anti-aliased) scaling down"
    echo "of images will be disabled."
    echo "Please read the config.log file for more information as to why this library"
    echo "was not found."
  fi
else
  echo "WARNING:......."
  echo "no OpenGL libraries /  headers found. This means no GL support will be"
  echo "built into Evas. This means much slower rendering perfromance."
  echo "Please read the config.log file for more information as to why this library"
  echo "was not found."
fi
CPPFLAGS=$PREV_CPPFLAGS

imlib2_inlcudes=`imlib2-config --cflags`
imlib2_libs=`imlib2-config --libs`

AC_SUBST(x_cflags)
AC_SUBST(x_includes)
AC_SUBST(x_ldflags)
AC_SUBST(x_libs)
AC_SUBST(gl_includes)
AC_SUBST(gl_ldflags)
AC_SUBST(gl_libs)
AC_SUBST(imlib2_includes)
AC_SUBST(imlib2_libs)

AC_OUTPUT([
Makefile src/Makefile test/Makefile evas-config
], [
chmod +x evas-config
])