# HG changeset patch
# User Rik <rik@octave.org>
# Date 1350008009 25200
# Node ID b9b9795a7cd99f2cbe96f559cfd9b2f34da0d5fb
# Parent  b3762b89c3c0756fb011b302ef8dcf70328b4b40
build: Build FLTK-associated DOCSTRINGS even when HAVE_FLTK is 0 (bug #37541).

* libinterp/dldfcn/__init_fltk__.cc(F__init_fltk__, F__fltk_redraw__,
F__fltk_maxtime__, F__have_fltk__): Define docstrings for these functions.
Use '#ifdef HAVE_FLTK' around function bodies.

* libinterp/dldfcn/__fltk_uigetfile__.cc(F__fltk_uigetfile__): Define
docstring for function.  Use '#ifdef HAVE_FLTK' around function body..

diff -r b3762b89c3c0 -r b9b9795a7cd9 libinterp/dldfcn/__fltk_uigetfile__.cc
--- a/libinterp/dldfcn/__fltk_uigetfile__.cc	Thu Oct 11 16:06:46 2012 -0700
+++ b/libinterp/dldfcn/__fltk_uigetfile__.cc	Thu Oct 11 19:13:29 2012 -0700
@@ -24,7 +24,7 @@
 #include <config.h>
 #endif
 
-#if defined (HAVE_FLTK)
+#ifdef HAVE_FLTK
 
 #ifdef WIN32
 #define WIN32_LEAN_AND_MEAN
@@ -39,6 +39,8 @@
 // headers which may require Octave's Complex typedef.
 #undef Complex
 
+#endif
+
 #include "defun-dld.h"
 #include "file-ops.h"
 
@@ -48,6 +50,7 @@
 Undocumented internal function.\n\
 @end deftypefn")
 {
+#ifdef HAVE_FLTK
   // Expected argument list:
   //
   //   args(0) ... FileFilter in fltk format
@@ -132,6 +135,10 @@
   Fl::flush ();
 
   return retval;
+#else
+  error ("__fltk_uigetfile__: not available without OpenGL and FLTK libraries");
+  return octave_value ();
+#endif
 }
 
 /*
@@ -139,4 +146,3 @@
 %!assert (1)
 */
 
-#endif
diff -r b3762b89c3c0 -r b9b9795a7cd9 libinterp/dldfcn/__init_fltk__.cc
--- a/libinterp/dldfcn/__init_fltk__.cc	Thu Oct 11 16:06:46 2012 -0700
+++ b/libinterp/dldfcn/__init_fltk__.cc	Thu Oct 11 19:13:29 2012 -0700
@@ -38,7 +38,7 @@
 #include "defun-dld.h"
 #include "error.h"
 
-#if defined (HAVE_FLTK)
+#ifdef HAVE_FLTK
 
 #include <map>
 #include <set>
@@ -1984,10 +1984,17 @@
   }
 };
 
+#endif
+
 // Initialize the fltk graphics toolkit.
 
-DEFUN_DLD (__init_fltk__, , , "")
+DEFUN_DLD (__init_fltk__, , ,
+  "-*- texinfo -*-\n\
+@deftypefn {Loadable Function} {} __init_fltk__ ()\n\
+Undocumented internal function.\n\
+@end deftypefn")
 {
+#ifdef HAVE_FLTK
   if (! toolkit_loaded)
     {
       mlock ();
@@ -2000,20 +2007,36 @@
       args(0) = "__fltk_redraw__";
       feval ("add_input_event_hook", args, 0);
     }
-
-  octave_value retval;
-  return retval;
-}
-
-DEFUN_DLD (__fltk_redraw__, , , "")
-{
-  __fltk_redraw__ ();
+#else
+  error ("__init_fltk__: not available without OpenGL and FLTK libraries");
+#endif
 
   return octave_value ();
 }
 
-DEFUN_DLD (__fltk_maxtime__, args, ,"")
+DEFUN_DLD (__fltk_redraw__, , ,
+  "-*- texinfo -*-\n\
+@deftypefn {Loadable Function} {} __fltk_redraw__ ()\n\
+Undocumented internal function.\n\
+@end deftypefn")
 {
+#ifdef HAVE_FLTK
+  __fltk_redraw__ ();
+#else
+  error ("__fltk_redraw__: not available without OpenGL and FLTK libraries");
+#endif
+
+  return octave_value ();
+}
+
+DEFUN_DLD (__fltk_maxtime__, args, ,
+  "-*- texinfo -*-\n\
+@deftypefn  {Loadable Function} {@var{maxtime} =} __fltk_maxtime__ ()\n\
+@deftypefnx {Loadable Function} {} __fltk_maxtime__ (@var{maxtime})\n\
+Undocumented internal function.\n\
+@end deftypefn")
+{
+#ifdef HAVE_FLTK
   octave_value retval = fltk_maxtime;
 
   if (args.length () == 1)
@@ -2025,15 +2048,21 @@
     }
 
   return retval;
+#else
+  error ("__fltk_maxtime__: not available without OpenGL and FLTK libraries");
+  return octave_value ();
+#endif
 }
 
-#endif
-
-DEFUN_DLD (__have_fltk__, , , "")
+DEFUN_DLD (__have_fltk__, , ,
+  "-*- texinfo -*-\n\
+@deftypefn  {Loadable Function} {@var{FLTK_available} =} __have_fltk__ ()\n\
+Undocumented internal function.\n\
+@end deftypefn")
 {
   octave_value retval;
 
-#if defined (HAVE_FLTK)
+#ifdef HAVE_FLTK
   retval = true;
 #else
   retval = false;
@@ -2059,7 +2088,7 @@
 @seealso{gui_mode}\n\
 @end deftypefn")
 {
-#if defined (HAVE_FLTK)
+#ifdef HAVE_FLTK
   octave_value retval = wheel_zoom_speed;
 
   if (args.length () == 1)
@@ -2099,7 +2128,7 @@
 @seealso{mouse_wheel_zoom}\n\
 @end deftypefn")
 {
-#if defined (HAVE_FLTK)
+#ifdef HAVE_FLTK
   caseless_str mode_str;
 
   if (gui_mode == pan_zoom)