# HG changeset patch
# User Rik <octave@nomad.inbox5.com>
# Date 1324924725 28800
# Node ID c5222658dc3cb938b6250b2e01f2daf052d8c501
# Parent  b8d9530e940e2e63793b9745e9ba7e6950e30436
doc: Build documentation for functions even when they are unavailable
on a particular platform due to lack of libraries.

syscalls.cc (F_DUPFD, F_GETFD, F_GETFL, F_SETFD, F_SETFL, O_APPEND, O_ASYNC,
O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY):
Build documentation for functions even when they are not available
due to lack of libraries.

__init_fltk__.cc (Fgui_mode, Fmouse_wheel_zoom): Build documentation
for functions even when they are not available due to lack of libraries.

diff -r b8d9530e940e -r c5222658dc3c src/DLD-FUNCTIONS/__init_fltk__.cc
--- a/src/DLD-FUNCTIONS/__init_fltk__.cc	Mon Dec 26 10:17:47 2011 -0500
+++ b/src/DLD-FUNCTIONS/__init_fltk__.cc	Mon Dec 26 10:38:45 2011 -0800
@@ -35,6 +35,9 @@
 #include <config.h>
 #endif
 
+#include "defun-dld.h"
+#include "error.h"
+
 #if defined (HAVE_FLTK)
 
 #include <map>
@@ -69,8 +72,6 @@
 #include "cmd-edit.h"
 #include "lo-ieee.h"
 
-#include "defun-dld.h"
-#include "error.h"
 #include "file-ops.h"
 #include "gl-render.h"
 #include "gl2ps-renderer.h"
@@ -2004,6 +2005,8 @@
   return retval;
 }
 
+#endif
+
 // FIXME -- This function should be abstracted and made potentially
 // available to all graphics toolkits.  This suggests putting it in
 // graphics.cc as is done for drawnow() and having the master
@@ -2021,6 +2024,7 @@
 @seealso{gui_mode}\n\
 @end deftypefn")
 {
+#if defined (HAVE_FLTK)
   octave_value retval = wheel_zoom_speed;
 
   if (args.length () == 1)
@@ -2032,6 +2036,10 @@
     }
 
   return retval;
+#else 
+  error ("mouse_wheel_zoom: not available without OpenGL and FLTK libraries");
+  return octave_value ();
+#endif
 }
 
 DEFUN_DLD (gui_mode, args, ,
@@ -2055,6 +2063,7 @@
 @seealso{mouse_wheel_zoom}\n\
 @end deftypefn")
 {
+#if defined (HAVE_FLTK)
   caseless_str mode_str;
 
   if (gui_mode == pan_zoom)
@@ -2089,6 +2098,9 @@
     error ("MODE must be one of the strings: \"2D\", \"3D\", or \"none\"");
 
   return octave_value (mode_str);
+#else
+  error ("mouse_wheel_zoom: not available without OpenGL and FLTK libraries");
+  return octave_value ();
+#endif
 }
 
-#endif
diff -r b8d9530e940e -r c5222658dc3c src/syscalls.cc
--- a/src/syscalls.cc	Mon Dec 26 10:17:47 2011 -0500
+++ b/src/syscalls.cc	Mon Dec 26 10:38:45 2011 -0800
@@ -1643,7 +1643,6 @@
 #define O_NONBLOCK O_NDELAY
 #endif
 
-#if defined (F_DUPFD)
 DEFUNX ("F_DUPFD", FF_DUPFD, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} F_DUPFD ()\n\
@@ -1652,11 +1651,14 @@
 @seealso{fcntl, F_GETFD, F_GETFL, F_SETFD, F_SETFL}\n\
 @end deftypefn")
 {
+#if defined (F_DUPFD)
   return const_value (args, F_DUPFD);
-}
+#else
+  error ("F_DUPFD: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (F_GETFD)
 DEFUNX ("F_GETFD", FF_GETFD, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} F_GETFD ()\n\
@@ -1665,11 +1667,14 @@
 @seealso{fcntl, F_DUPFD, F_GETFL, F_SETFD, F_SETFL}\n\
 @end deftypefn")
 {
+#if defined (F_GETFD)
   return const_value (args, F_GETFD);
-}
+#else
+  error ("F_GETFD: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (F_GETFL)
 DEFUNX ("F_GETFL", FF_GETFL, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} F_GETFL ()\n\
@@ -1678,11 +1683,14 @@
 @seealso{fcntl, F_DUPFD, F_GETFD, F_SETFD, F_SETFL}\n\
 @end deftypefn")
 {
+#if defined (F_GETFL)
   return const_value (args, F_GETFL);
-}
+#else
+  error ("F_GETFL: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (F_SETFD)
 DEFUNX ("F_SETFD", FF_SETFD, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} F_SETFD ()\n\
@@ -1691,11 +1699,14 @@
 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFL}\n\
 @end deftypefn")
 {
+#if defined (F_SETFD)
   return const_value (args, F_SETFD);
-}
+#else
+  error ("F_SETFD: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (F_SETFL)
 DEFUNX ("F_SETFL", FF_SETFL, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} F_SETFL ()\n\
@@ -1704,11 +1715,14 @@
 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFD}\n\
 @end deftypefn")
 {
+#if defined (F_SETFL)
   return const_value (args, F_SETFL);
-}
+#else
+  error ("F_SETFL: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_APPEND)
 DEFUNX ("O_APPEND", FO_APPEND, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_APPEND ()\n\
@@ -1718,11 +1732,14 @@
 @seealso{fcntl, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_APPEND)
   return const_value (args, O_APPEND);
-}
+#else
+  error ("O_APPEND: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_ASYNC)
 DEFUNX ("O_ASYNC", FO_ASYNC, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_ASYNC ()\n\
@@ -1731,11 +1748,14 @@
 @seealso{fcntl, O_APPEND, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_ASYNC)
   return const_value (args, O_ASYNC);
-}
+#else
+  error ("O_ASYNC: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_CREAT)
 DEFUNX ("O_CREAT", FO_CREAT, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_CREAT ()\n\
@@ -1745,11 +1765,14 @@
 @seealso{fcntl, O_APPEND, O_ASYNC, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_CREAT)
   return const_value (args, O_CREAT);
-}
+#else
+  error ("O_CREAT: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_EXCL)
 DEFUNX ("O_EXCL", FO_EXCL, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_EXCL ()\n\
@@ -1758,11 +1781,14 @@
 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_EXCL)
   return const_value (args, O_EXCL);
-}
+#else
+  error ("O_EXCL: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_NONBLOCK)
 DEFUNX ("O_NONBLOCK", FO_NONBLOCK, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_NONBLOCK ()\n\
@@ -1772,11 +1798,14 @@
 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_NONBLOCK)
   return const_value (args, O_NONBLOCK);
-}
+#else
+  error ("O_NONBLOCK: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_RDONLY)
 DEFUNX ("O_RDONLY", FO_RDONLY, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_RDONLY ()\n\
@@ -1786,11 +1815,14 @@
 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_RDONLY)
   return const_value (args, O_RDONLY);
-}
+#else
+  error ("O_RDONLY: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_RDWR)
 DEFUNX ("O_RDWR", FO_RDWR, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_RDWR ()\n\
@@ -1800,11 +1832,14 @@
 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_SYNC, O_TRUNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_RDWR)
   return const_value (args, O_RDWR);
-}
+#else
+  error ("O_RDWR: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_SYNC)
 DEFUNX ("O_SYNC", FO_SYNC, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_SYNC ()\n\
@@ -1814,11 +1849,14 @@
 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_TRUNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_SYNC)
   return const_value (args, O_SYNC);
-}
+#else
+  error ("O_SYNC: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_TRUNC)
 DEFUNX ("O_TRUNC", FO_TRUNC, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} O_TRUNC ()\n\
@@ -1828,11 +1866,14 @@
 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_WRONLY}\n\
 @end deftypefn")
 {
+#if defined (O_TRUNC)
   return const_value (args, O_TRUNC);
-}
+#else
+  error ("O_TRUNC: not available on this system");
+  return octave_value ();
 #endif
+}
 
-#if defined (O_WRONLY)
 DEFUNX ("O_WRONLY", FO_WRONLY, args, ,
   "-*- texinfo -*-\n\
 @deftypefn {Built-in Function} {} O_WRONLY ()\n\
@@ -1842,9 +1883,13 @@
 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC}\n\
 @end deftypefn")
 {
+#if defined (O_WRONLY)
   return const_value (args, O_WRONLY);
+#else
+  error ("O_WRONLY: not available on this system");
+  return octave_value ();
+#endif
 }
-#endif
 
 #if !defined (WNOHANG)
 #define WNOHANG 0