[sr-dev] [kamailio/kamailio] Same warnings durring build (#1712)

[sergey-safarov]

### Description
This in not important and may be closed at any time.

Some info about build warnings on Alpine dist

### Troubleshooting

#### Reproduction

start a build process on Alpine dist

#### Debugging Data

NA

#### Log Messages

```
CC (gcc) [M regex.so]		regex_mod.o
regex_mod.c: In function 'w_pcre_match_group':
regex_mod.c:663:9: warning: 'num_pcre' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return ki_pcre_match_group(_msg, &string, (int)num_pcre);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
LD (gcc) [M regex.so]		regex.so
CC (gcc) [M db_berkeley.so]		bdb_fld.o
```
Next
```
CC (gcc) [M cplc.so]		cpl_parser.o
In file included from ../../core/mem/mem.h:41:0,
                 from cpl_run.c:37:
cpl_run.c: In function 'run_remove_location':
../../core/mem/../dprint.h:302:8: warning: 'url.len' may be used uninitialized in this function [-Wmaybe-uninitialized]
        fprintf(stderr, "%2d(%d) %s: %.*s%s" fmt, \
        ^~~~~~~
cpl_run.c:416:6: note: 'url.len' was declared here
  str url;
      ^~~
CC (gcc) [M cplc.so]		sub_list.o
make[3]: 'libsrdb1.so.1.0' is up to date.
```
Next
```
CC (gcc) [M db2_ldap.so]		ld_fld.o
ld_fld.c: In function 'ldap_gentime2db_datetime':
ld_fld.c:273:10: warning: implicit declaration of function 'timelocal' [-Wimplicit-function-declaration]
   *dst = timelocal(&time);
          ^~~~~~~~~
CC (gcc) [M db2_ldap.so]		ld_cmd.o
```
Next
```
CC (gcc) [M auth_identity.so]		auth_dynstr.o
CC (gcc) [M auth_identity.so]		auth_crypt.o
auth_crypt.c:29:0: warning: "_GNU_SOURCE" redefined
 #define _GNU_SOURCE
 
<command-line>:0:0: note: this is the location of the previous definition
```

Next
```
CC (gcc) [M tls.so]		tls_init.o
tls_init.c:320:13: warning: 'ser_free' defined but not used [-Wunused-function]
 static void ser_free(void *ptr, const char *fname, int fline)
             ^~~~~~~~
CC (gcc) [M tls.so]		tls_dump_vf.o
CC (gcc) [M tls.so]		tls_select.o
CC (gcc) [M tls.so]		tls_cfg.o
CC (gcc) [M tls.so]		tls_map.o
CC (gcc) [M tls.so]		tls_server.o
CC (gcc) [M tls.so]		tls_locking.o
tls_locking.c:85:13: warning: 'dyn_destroy_f' defined but not used [-Wunused-function]
 static void dyn_destroy_f(struct CRYPTO_dynlock_value *l,
             ^~~~~~~~~~~~~
tls_locking.c:67:13: warning: 'dyn_lock_f' defined but not used [-Wunused-function]
 static void dyn_lock_f(int mode, struct CRYPTO_dynlock_value* l,
             ^~~~~~~~~~
tls_locking.c:45:37: warning: 'dyn_create_f' defined but not used [-Wunused-function]
 static struct CRYPTO_dynlock_value* dyn_create_f(const char* file, int line)
                                     ^~~~~~~~~~~~
CC (gcc) [M tls.so]		tls_domain.o
tls_domain.c:872:12: warning: 'tls_ssl_ctx_set_freelist' defined but not used [-Wunused-function]
 static int tls_ssl_ctx_set_freelist(SSL_CTX* ctx, long val, void* unused)
            ^~~~~~~~~~~~~~~~~~~~~~~~
In file included from tls_domain.c:33:0:
tls_domain.c: In function 'load_engine_private_key':
tls_map.h:46:14: warning: 'pkey' may be used uninitialized in this function [-Wmaybe-uninitialized]
   ( (m)->tmp = (value),\
              ^
tls_domain.c:1183:12: note: 'pkey' was declared here
  EVP_PKEY *pkey;
            ^~~~
CC (gcc) [M tls.so]		tls_util.o
```
Next
```
CC (gcc) [M ims_usrloc_pcscf.so]		dlist.o
In file included from usrloc_db.c:10:0:
usrloc_db.c: In function 'db_update_pcontact':
usrloc_db.h:46:25: warning: 'service_routes.len' may be used uninitialized in this function [-Wmaybe-uninitialized]
    VAL_STR((_val)).len  = (_str).len;\
                         ^
usrloc_db.c:122:13: note: 'service_routes.len' was declared here
  str impus, service_routes;
             ^~~~~~~~~~~~~~
In file included from usrloc_db.c:10:0:
usrloc_db.h:45:24: warning: 'service_routes.s' may be used uninitialized in this function [-Wmaybe-uninitialized]
    VAL_STR((_val)).s   = (_str).s;\
                        ^
usrloc_db.c:122:13: note: 'service_routes.s' was declared here
  str impus, service_routes;
             ^~~~~~~~~~~~~~
CC (gcc) [M ims_usrloc_pcscf.so]		pcontact.o
```
Next
```
CC (gcc) [M evapi.so]		evapi_mod.o
evapi_dispatch.c: In function 'evapi_run_dispatcher':
evapi_dispatch.c:699:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  ev_io_init(&io_server, evapi_accept_client, evapi_srv_sock, EV_READ);
  ^~~~~~~~~~
evapi_dispatch.c:699:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
evapi_dispatch.c:699:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
evapi_dispatch.c:699:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
evapi_dispatch.c:701:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
  ev_io_init(&io_notify, evapi_recv_notify, _evapi_notify_sockets[0], EV_READ);
  ^~~~~~~~~~
evapi_dispatch.c:701:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
evapi_dispatch.c:701:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
evapi_dispatch.c:701:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
make[3]: 'libsrutils.so.1.0' is up to date.
LD (gcc) [M evapi.so]		evapi.so
```

#### SIP Traffic
NA

### Possible Solutions

### Additional Information

Compiled master on Alpine 3.8 dist
If this is fixed, then i can provide more warnings.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/kamailio/kamailio/issues/1712
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-dev/attachments/20181107/e4f9c981/attachment.html>