New CMake option OPTION_PRINT_SUPPORT turned ON by default

When the option is off, file config.h defines NO_PRINT_SUPPORT 
which in turn produces a library without print support, that is, 
class Fl_Printer does nothing.
When off, the FLTK library is somewhat smaller.
Can be turned off only when the X11 library is used.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11127 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

configh.cmake.in

@@ -336,6 +336,12 @@
 #cmakedefine01 HAVE_DLFCN_H
 #cmakedefine01 HAVE_DLSYM
 
+/*
+ * Do we want print support?
+ */
+
+#cmakedefine NO_PRINT_SUPPORT 1
+
 /*
  * End of "$Id$".
  */