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  3. Message #10895

GCC7 warnings

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hard to say how serious they are but maybe a good idea to take a look
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/mariadb_config/mariadb_config.c:9:49: warning: backslash and newline separated by space 
 #define LIBS    "-L/usr/lib64/mysql/ -lmariadb "\
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/mariadb_lib.c: In function 'mariadb_get_infov': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/mariadb_lib.c:3872:30: warning: this statement may fall through [-Wimplicit-fallthrough=] 
       *((unsigned long *)arg)= mysql->client_flag;
       ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/mariadb_lib.c:3875:3: note: here 
   default:
   ^~~~~~~
In file included from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/plugin/handler_socket/libhsclient/hstcpcli.cpp:13:0: /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/plugin/handler_socket/libhsclient/hstcpcli.hpp:33:14: warning: 'template<class> class std::auto_ptr' is deprecated [-Wdeprecated-declarations] 
 typedef std::auto_ptr<hstcpcli_i> hstcpcli_ptr;
              ^~~~~~~~
In file included from /usr/include/c++/7/memory:80:0,
from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/plugin/handler_socket/libhsclient/hstcpcli.hpp:15, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/plugin/handler_socket/libhsclient/hstcpcli.cpp:13: 
/usr/include/c++/7/bits/unique_ptr.h:51:28: note: declared here
   template<typename> class auto_ptr;
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/ma_dtoa.c: In function 'dtoa': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/ma_dtoa.c:1465:14: warning: this statement may fall through [-Wimplicit-fallthrough=] 
     leftright= 0;
     ~~~~~~~~~^~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/ma_dtoa.c:1467:3: note: here 
   case 4:
   ^~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/ma_dtoa.c:1473:14: warning: this statement may fall through [-Wimplicit-fallthrough=] 
     leftright= 0;
     ~~~~~~~~~^~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/ma_dtoa.c:1475:3: note: here 
   case 5:
   ^~~~
At top level:
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/ma_dtoa.c:1161:21: warning: 'tinytens' defined but not used [-Wunused-const-variable=] 
 static const double tinytens[]=
                     ^~~~~~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/mariadb_dyncol.c: In function 'mariadb_dyncol_val_double': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/mariadb_dyncol.c:4044:7: warning: this statement may fall through [-Wimplicit-fallthrough=] 
       {
       ^
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/mariadb_dyncol.c:4060:5: note: here 
     case DYN_COL_DATETIME:
     ^~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/mariadb_dyncol.c:4050:15: warning: argument 1 null where non-null expected [-Wnonnull] 
         *dbl= strtod(str, &end);
               ^~~~~~~~~~~~~~~~~
In file included from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/include/ma_global.h:168:0, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/libmariadb/mariadb_dyncol.c:64: /usr/include/stdlib.h:126:15: note: in a call to function 'strtod' declared here 
 extern double strtod (const char *__restrict __nptr,
               ^~~~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/unittest/libmariadb/t_aurora.c: In function 'test_reconnect': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/libmariadb/unittest/libmariadb/t_aurora.c:100:3: warning: ignoring return value of 'system', declared with attribute warn_unused_result [-Wunused-result] system("/usr/local/aws/bin/aws rds failover-db-cluster --db-cluster-identifier instance-1-cluster"); 

^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/mysys/my_lib.c: In function 'my_dir': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/mysys/my_lib.c:144:3: warning: 'readdir_r' is deprecated [-Wdeprecated-declarations] 
   while (!(READDIR(dirp,(struct dirent*) dirent_tmp,dp)))
   ^~~~~
In file included from /usr/include/features.h:410:0,
                 from /usr/include/pthread.h:21,
from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_global.h:278, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/mysys/mysys_priv.h:19, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/mysys/my_lib.c:19: 
/usr/include/dirent.h:189:12: note: declared here
 extern int __REDIRECT (readdir_r,
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/myisamchk.c: In function 'myisamchk': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/myisamchk.c:1411:22: warning: '%ld' directive writing between 1 and 10 bytes into a region of size 8 [-Wformat-overflow=] 
    sprintf(null_pos,"%ld",(long) keyseg->null_pos+1);
                      ^~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/myisamchk.c:1411:21: note: directive argument in the range [1, 4294967296] 
    sprintf(null_pos,"%ld",(long) keyseg->null_pos+1);
                     ^~~~~
In file included from /usr/include/stdio.h:939:0,
from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_global.h:322, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_base.h:23, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/myisam.h:26, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/myisamdef.h:20, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/fulltext.h:21, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/myisamchk.c:18: /usr/include/bits/stdio2.h:33:10: note: '__builtin___sprintf_chk' output between 2 and 11 bytes into a destination of size 8 
   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       __bos (__s), __fmt, __va_arg_pack ());
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/mi_test3.c: In function 'test_write': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/mi_test3.c:367:30: warning: '%7ld' directive writing between 7 and 11 bytes into a region of size 8 [-Wformat-overflow=] 
   sprintf((char*) record.id,"%7ld",(long) getpid());
                              ^~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/mi_test3.c:367:29: note: directive argument in the range [-2147483648, 2147483647] 
   sprintf((char*) record.id,"%7ld",(long) getpid());
                             ^~~~~~
In file included from /usr/include/stdio.h:939:0,
from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_global.h:322, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_base.h:23, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/myisam.h:26, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/myisam/mi_test3.c:20: /usr/include/bits/stdio2.h:33:10: note: '__builtin___sprintf_chk' output between 8 and 12 bytes into a destination of size 8 
   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       __bos (__s), __fmt, __va_arg_pack ());
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/maria_chk.c: In function 'maria_chk': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/maria_chk.c:1703:22: warning: '%ld' directive writing between 1 and 10 bytes into a region of size 8 [-Wformat-overflow=] 
    sprintf(null_pos,"%ld",(long) keyseg->null_pos+1);
                      ^~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/maria_chk.c:1703:21: note: directive argument in the range [1, 4294967296] 
    sprintf(null_pos,"%ld",(long) keyseg->null_pos+1);
                     ^~~~~
In file included from /usr/include/stdio.h:939:0,
from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_global.h:322, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_base.h:23, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/maria.h:22, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/maria_def.h:18, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/ma_fulltext.h:20, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/maria_chk.c:18: /usr/include/bits/stdio2.h:33:10: note: '__builtin___sprintf_chk' output between 2 and 11 bytes into a destination of size 8 
   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       __bos (__s), __fmt, __va_arg_pack ());
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/ma_test3.c: In function 'test_write': /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/ma_test3.c:365:30: warning: '%7ld' directive writing between 7 and 11 bytes into a region of size 8 [-Wformat-overflow=] 
   sprintf((char*) record.id,"%7ld", (long) getpid());
                              ^~~~
/home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/ma_test3.c:365:29: note: directive argument in the range [-2147483648, 2147483647] 
   sprintf((char*) record.id,"%7ld", (long) getpid());
                             ^~~~~~
In file included from /usr/include/stdio.h:939:0,
from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_global.h:322, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/my_base.h:23, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/include/maria.h:22, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/maria_def.h:18, from /home/builduser/rpmbuild/BUILD/mariadb-10.2.8/storage/maria/ma_test3.c:20: /usr/include/bits/stdio2.h:33:10: note: '__builtin___sprintf_chk' output between 8 and 12 bytes into a destination of size 8 
   return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       __bos (__s), __fmt, __va_arg_pack ());
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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