Please read:
        Insert "//" (without the quotes) before LOCAL_USER_REMOVE(u); to comment that line <now on line 317> (as seen above)
as:
        Insert "//" (without the quotes) before STANDARD_HANGUP_LOCALUSERS; to comment that line <now on line 317> (as seen above)

I have personally tried these patches and had no luck. I edited the files and got everything to work. I used asterisk-1.4.11 for my build and all directories below are located in the asterisk work direcotry.

Here is what I did:

Copy the app_nv_faxdetect.c file to the apps/ directory.
Edit the app_nv_faxdetect.c file as follows:
         Insert "#include <stdio.h>" (without the quotes) after the line that reads #include <asterisk/lock.h> <line 27>
         Insert "//" (without the quotes) before LOCAL_USER_ADD(u); to comment that line <now on line 160> (as seen above)
         Insert "//" (without the quotes) before LOCAL_USER_REMOVE(u); to comment that line <now on line 310> (as seen above)
         Insert "//" (without the quotes) before LOCAL_USER_REMOVE(u); to comment that line <now on line 317> (as seen above)
         Insert "//" (without the quotes) before int res; to comment that line <now on line 333>
         Insert "//" (without the quotes) before STANDARD_USECOUNT(res); to comment that line <now on line 334>
         Insert "//" (without the quotes) before return res; to comment that line <now on line 335>
         Insert "AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Fax Detection Application");" (without the quotes) at the end of the .c file.
         Save your changes to the .c file.

Edit the file menuselect-deps.in in the build_tools/ directory.
         Insert "NV_DETECT=@PBX_NV_DETECT@" after the line that reads NEWT=@PBX_NEWT@ <line 16>

Run make clean
Run make menuselect
         Make sure app_nv_faxdetect is selected *
Run make
Run make install

You should be all set!

Obviously you will want to test the module before putting it into production.

Good luck! I'd appreciate it if anyone uses the patch procedure I provided if you would let me know if it worked for you!

Hello,
inspired by Eric Davis' post, I added two working patches to the wiki page. Eric's patches were not directly usable as I couldn't cut'n'paste the code, so I repeated the process suggested by the wiki page and did an unified diff.

I also created the patch for the small change in menuselect-deps.in that makes the NVFaxDetect app available from the menu.

I left the warnings because I'm not into Asterisk internals and I was afraid to remove something that I shouldn't remove. Feel free to improve the patch if you can do it.

Hope that helps,
Andrea Spadaccini

The following patch file will give you all the changes listed bellow. I compiled this and tested it on an Asterisk 1.4.2 code base using SIP trunks only.

1.) Get the app_nv_faxdetect.c source --> wget http://nerdvittles.com/aah2/app_nv_faxdetect.c
2.) Apply the patch bellow --> patch app_nv_faxdetect.c app_nv_faxdetect.c.patch
3.) Copy the patched file to your <asterisk-src>/apps directory
4.) Add the following line (in the correct place) to your <asterisk-src>/build-tools/menuselect-deps.in file --> NV_DETECT=@PBX_NV_DETECT@
         NEWT=@PBX_NEWT@
         NV_DETECT=@PBX_NV_DETECT@
         OGG=@PBX_OGG@
5.) Rebuild asterisk...
5.1) ./bootstrap.sh
5.2) ./configure
5.3) make menuselect (make sure that app_nv_detect is selected)
5.4) make
5.5) make install
6.) Restart asterisk, connect and verify that the app is loaded --> core show application NVFaxDetect
7.) Use the examples posted elsewhere on configuring your dial plan.

{Start of app_nv_faxdetect.c.patch} (sorry that the formatting is weird - I'm not a wiki expert. The solid lines bellow were "----" in the source file.)

---

32a33
> #include <asterisk/options.h>
39c40
< static char *tdesc = "Newman's fax detection application";

---

>
69d69
< // Use the second one for recent Asterisk releases
71,75d70
< //#define CALLERID_FIELD callerid
<
< STANDARD_LOCAL_USER;
<
< LOCAL_USER_DECL;
80c75,76
< struct localuser *u;

---

> //struct localuser *u;
> struct ast_module_user *u;
160c156
< LOCAL_USER_ADD(u);

---

> u = ast_module_user_add(chan);
310c306
< LOCAL_USER_REMOVE(u);

---

> ast_module_user_remove(u);
315c311
< int unload_module(void)

---

> static int unload_module(void)
317,319c313
< STANDARD_HANGUP_LOCALUSERS;
< return ast_unregister_application(app);
< }

---

> int res;
321,324c315
< int load_module(void)
< {
< return ast_register_application(app, nv_detectfax_exec, synopsis, descrip);
< }

---

> res = ast_unregister_application(app);
326,329c317
< char *description(void)
< {
< return tdesc;
< }

---

> ast_module_user_hangup_all();
331,335c319
< int usecount(void)
< {
< int res;
< STANDARD_USECOUNT(res);
< return res;

---

> return res;
338c322
< char *key()

---

> static int load_module(void)
340c324
< return ASTERISK_GPL_KEY;

---

> return ast_register_application(app, nv_detectfax_exec, synopsis, descrip);
341a326,327
>
> AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Fax Detection Application");

---

{End of app_nv_faxdetect.c.patch}