[Dev-C++] Re: 10 quick questions

[<ech...@ne...>]

It looks like you need gtk+ and pw32 (a posix emulation layer)

You can find them at:
  Pw32:http://pw32.sourceforge.net/ 
  Gtk+:http://gtk.org (dev-c++ packages at http://www.bloodshed.net/dev/packages/gtk.html)

I think that these 2 packages would remove most (all?) the errors.  But, I haven't used either - just read some of their docs.

Evan Hempel

PS: I think that there also is a dev-c++ package for pw32

Original message follows:
---------------------------------------------------
   Hello again people


   Now I'm having problems with a small program, originally written for
   GNU/Linux. It uses some headers that are not present on Dev-C++, and I never
   used Linux here on my machine (lack of disk space); maybe the biggest
   problem is that I don't even know what's written on those headers, so I have
   no idea of what I need to substitute.
   (The questions are numbered)

   1)) Then here goes my first question: there is a online database/port of
   linux's headers (with also some documentation or explanation, not just the
   source code)?


   And now some doubts:

   2)) Look to this error:
   "144 callbacks.c
   warning: passing arg 2 of `create_dir_browser' discards qualifiers from
   pointer target type"

   Here is the code:
   ///
   /* Function prototype */
   GtkWidget *create_dir_browser(gchar * title, gchar * current_path,
                    GtkSelectionMode mode, void (*handler) (gchar *));

   124: void on_dir_select29(gchar * dir);

   ...

   141:  GtkWidget *win;
   142:
   143:  win = create_dir_browser(_("Select Directory"), g_get_home_dir(),
   144:               GTK_SELECTION_SINGLE, on_dir_select29);
   ///

   I get this error in many other points too. I have no idea of what to do
   (what does the "void (*handler) (gchar *)" mean?).




   3)) The following error:
   3771 global.c
   `SIGPIPE' undeclared (first use in this function)
   ///
   3771:  signal(SIGPIPE, sigpipe_handler);
   ///
   I couldn't find this constant (should be in "signal.h"?). What do I use
   instead?


   4)) Other error:
   1252 commands.c
   storage size of `uts' isn't known
   ///
   1252:   struct utsname uts;
   ///
   I think that utsname is defined in sys/utsname.h, but where is utsname.h?
   There is an equivalent? (What is utsname.h for anyways?)



   Questions 5 and 6 are about these lines:
   ///
   382:  fcntl(sock, F_SETFL, O_NONBLOCK);
   383:  res = connect(sock, (struct sockaddr *) &server, sizeof(server));
   384:
   385:  if ((res == 0) || (errno == EINPROGRESS)) return 1;
   386:  else return 0;
   ///

   5)) Two errors in the same line:
   382 connection.c
   `F_SETFL' undeclared (first use in this function)
   and
   382 connection.c
   `O_NONBLOCK' undeclared (first use in this function)

   I think O_NONBLOCK should be in fcntl.h. The F_SETFL I have no idea though.




   6)) Two similar errors (from socket.h/winsock.h, I think):

   385 connection.c
   `EINPROGRESS' undeclared (first use in this function)

   and

   465 connection.c
   `EWOULDBLOCK' undeclared (first use in this function)
   ///
   465:      if (errno != EWOULDBLOCK) {
   ///
   Are EINPROGRESS and EWOULDBLOCK equivalent to WSAEINPROGRESS and
   WSAEWOULDBLOCK? Can I substitute them without problems?




   7))
   96 exec.c
   `WNOHANG' undeclared (first use in this function)
   ///
   96:   waitpid(exec->pid, &status, WNOHANG);
   ///




   8))
   220 exec.c
   `SIGKILL' undeclared (first use in this function)
   ///
   217:  client_message(NULL, _("Killing process.."));
   218:  kill(exec->pid, SIGTERM);
   219:  sleep(2);
   220:  kill(exec->pid, SIGKILL);
   ///
   Should SIGKILL be in signal.h like SIGTERM? Can I use something like SIGABRT
   instead?



   9)) Those errors:
   291 md5.c
   `PROT_READ' undeclared (first use in this function)
   291 md5.c
   `MAP_PRIVATE' undeclared (first use in this function)
   291 md5.c
   `MAP_FAILED' undeclared (first use in this function)
   ///
   291:  if ((m = mmap((void *) 0, size, PROT_READ, MAP_PRIVATE, fd, 0)) !=
   MAP_FAILED)
   ///

   Probably the problem is this header, that doesn't exist in Dev-C++, right?
   #include <sys/mman.h>       /*  for mmap()   */
   What can I do? There's an equivalent header?



   10)) This program uses also these headers:
   #include <sys/socket.h>
   #include <netinet/in.h>
   #include <arpa/inet.h>
   #include <netdb.h>

   What should I use in windows (besides winsock.h?)?




   Well, thanks for any help. If anyone interested, I can send the full source
   code (about 2MB).




   Daniel K. O.





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