Patch for dillo cross compile friendly

--- VT300/dillo2/configure.in    2009-07-03 21:08:27.000000000 +0800
+++ S3C2440/dillo2/configure.in    2009-07-03 20:53:30.000000000 +0800
@@ -95,10 +95,10 @@
 dnl (this is somewhat a religious problem)
 dnl --------------------------------------
 dnl
-if test "`$CPP -v < /dev/null 2>&1 | grep '/usr/local/include' 2>&1`" = ""; then
-  CPPFLAGS="$CPPFLAGS -I/usr/local/include"
-  LDFLAGS="$LDFLAGS -L/usr/local/lib"
-fi
+dnl if test "`$CPP -v < /dev/null 2>&1 | grep '/usr/local/include' 2>&1`" = ""; then
+dnl   CPPFLAGS="$CPPFLAGS -I/usr/local/include"
+dnl   LDFLAGS="$LDFLAGS -L/usr/local/lib"
+dnl fi
 
 dnl ------------------------------------
 dnl Check for socket libs (AIX, Solaris)
@@ -145,12 +145,18 @@
 dnl ----------------------
 dnl
 dnl For debugging and to be user friendly
+
+dnl Check if the user hasn't set the variable $FLTK2_CONFIG
+  if test -z "$FLTK2_CONFIG"; then
+    PNG_CONFIG=`which fltk2-config`
+  fi
+
 AC_MSG_CHECKING([FLTK2])
 if sh -c "fltk2-config --version" >/dev/null 2>&1
 then AC_MSG_RESULT(yes)
-     LIBFLTK_CXXFLAGS=`fltk2-config --cxxflags`
-     LIBFLTK_CFLAGS=`fltk2-config --cflags`
-     LIBFLTK_LIBS=`fltk2-config --use-images --ldflags`
+     LIBFLTK_CXXFLAGS=`$FLTK2_CONFIG --cxxflags`
+     LIBFLTK_CFLAGS=`$FLTK2_CONFIG --cflags`
+     LIBFLTK_LIBS=`$FLTK2_CONFIG --use-images --ldflags`
 else AC_MSG_RESULT(no)
      AC_ERROR(FLTK2 must be installed!)
 fi