<command-line>:0:0: note: this is the location of the previous definition
In file included from ../../../src/include/postgres.h:46:0,
                 from be-secure-openssl.c:17:
be-secure-openssl.c: In function ‘SSLerrmessage’:
../../../src/include/c.h:1009:20: warning: ‘%lu’ directive output may be truncated writing between 1 and 20 bytes into a region of size 17 [-Wformat-truncation=]
 #define gettext(x) (x)
                    ^
../../../src/include/c.h:1015:14: note: in expansion of macro ‘gettext’
 #define _(x) gettext(x)
              ^~~~~~~
be-secure-openssl.c:1023:35: note: in expansion of macro ‘_’
  snprintf(errbuf, sizeof(errbuf), _("SSL error code %lu"), ecode);
                                   ^
be-secure-openssl.c:1023:2: note: ‘snprintf’ output between 17 and 36 bytes into a destination of size 32
  snprintf(errbuf, sizeof(errbuf), _("SSL error code %lu"), ecode);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
postgres.c: In function ‘check_log_duration’:
postgres.c:2156:36: warning: ‘snprintf’ output may be truncated before the last format character [-Wformat-truncation=]
    snprintf(msec_str, 32, "%ld.%03d",
                                    ^
postgres.c:2156:4: note: ‘snprintf’ output between 6 and 33 bytes into a destination of size 32
    snprintf(msec_str, 32, "%ld.%03d",
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       secs * 1000 + msecs, usecs % 1000);
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
formatting.c: In function ‘DCH_to_char’:
formatting.c:2455:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_hour >= 0) ? 2 : 3,
                 ^~~~
formatting.c:2455:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_hour >= 0) ? 2 : 3,
                ^~~~~~
formatting.c:2463:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_hour >= 0) ? 2 : 3,
                 ^~~~
formatting.c:2463:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_hour >= 0) ? 2 : 3,
                ^~~~~~
formatting.c:2470:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_min >= 0) ? 2 : 3,
                 ^~~~
formatting.c:2470:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_min >= 0) ? 2 : 3,
                ^~~~~~
formatting.c:2477:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_sec >= 0) ? 2 : 3,
                 ^~~~
formatting.c:2477:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_sec >= 0) ? 2 : 3,
                ^~~~~~
formatting.c:2538:19: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%c%0*d",
                   ^~~~
formatting.c:2538:16: note: assuming directive output of 11 bytes
     sprintf(s, "%c%0*d",
                ^~~~~~~~
formatting.c:2692:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_mon >= 0) ? 2 : 3,
                 ^~~~
formatting.c:2692:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (tm->tm_mon >= 0) ? 2 : 3,
                ^~~~~~
formatting.c:2805:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 3,
                 ^~~~
formatting.c:2805:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 3,
                ^~~~~~
formatting.c:2814:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2, tm->tm_mday);
                 ^~~~
formatting.c:2814:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2, tm->tm_mday);
                ^~~~~~
formatting.c:2834:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2,
                 ^~~~
formatting.c:2834:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2,
                ^~~~~~
formatting.c:2841:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2,
                 ^~~~
formatting.c:2841:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : 2,
                ^~~~~~
formatting.c:2868:18: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
      sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (i >= 0) ? 2 : 3, i);
                  ^~~~
formatting.c:2868:17: note: assuming directive output of 11 bytes
      sprintf(s, "%0*d", S_FM(n->suffix) ? 0 : (i >= 0) ? 2 : 3, i);
                 ^~~~~~
formatting.c:2885:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d",
                 ^~~~
formatting.c:2885:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d",
                ^~~~~~
formatting.c:2900:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d",
                 ^~~~
formatting.c:2900:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d",
                ^~~~~~
formatting.c:2915:17: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
     sprintf(s, "%0*d",
                 ^~~~
formatting.c:2915:16: note: assuming directive output of 11 bytes
     sprintf(s, "%0*d",
                ^~~~~~
guc.c: In function ‘InitializeGUCOptionsFromEnvironment’:
guc.c:4604:20: warning: ‘%ld’ directive writing between 1 and 20 bytes into a region of size 16 [-Wformat-overflow=]
    sprintf(limbuf, "%ld", new_limit);
                    ^~~~~
guc.c:4604:4: note: ‘sprintf’ output between 2 and 21 bytes into a destination of size 16
    sprintf(limbuf, "%ld", new_limit);
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../../../../src/include/postgres.h:46:0,
                 from pg_rusage.c:16:
pg_rusage.c: In function ‘pg_rusage_show’:
../../../../src/include/c.h:1009:20: warning: ‘%02d’ directive output may be truncated writing between 2 and 11 bytes into a region of size between 6 and 54 [-Wformat-truncation=]
 #define gettext(x) (x)
                    ^
../../../../src/include/c.h:1015:14: note: in expansion of macro ‘gettext’
 #define _(x) gettext(x)
              ^~~~~~~
pg_rusage.c:64:5: note: in expansion of macro ‘_’
     _("CPU: user: %d.%02d s, system: %d.%02d s, elapsed: %d.%02d s"),
     ^
pg_rusage.c:63:2: note: ‘snprintf’ output between 51 and 108 bytes into a destination of size 100
  snprintf(result, sizeof(result),
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     _("CPU: user: %d.%02d s, system: %d.%02d s, elapsed: %d.%02d s"),
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     (int) (ru1.ru.ru_utime.tv_sec - ru0->ru.ru_utime.tv_sec),
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     (int) (ru1.ru.ru_utime.tv_usec - ru0->ru.ru_utime.tv_usec) / 10000,
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     (int) (ru1.ru.ru_stime.tv_sec - ru0->ru.ru_stime.tv_sec),
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     (int) (ru1.ru.ru_stime.tv_usec - ru0->ru.ru_stime.tv_usec) / 10000,
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     (int) (ru1.tv.tv_sec - ru0->tv.tv_sec),
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     (int) (ru1.tv.tv_usec - ru0->tv.tv_usec) / 10000);
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

<command-line>:0:0: note: this is the location of the previous definition
interval.c: In function ‘AppendSeconds’:
interval.c:759:22: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
    sprintf(cp, "%02d.%0*d", abs(sec), precision, (int) Abs(fsec));
                      ^~~~
interval.c:759:16: note: assuming directive output of 11 bytes
    sprintf(cp, "%02d.%0*d", abs(sec), precision, (int) Abs(fsec));
                ^~~~~~~~~~~
interval.c:761:20: warning: ‘%0*d’ directive output between 1 and 2147483648 bytes may exceed minimum required size of 4095 [-Wformat-overflow=]
    sprintf(cp, "%d.%0*d", abs(sec), precision, (int) Abs(fsec));
                    ^~~~
interval.c:761:16: note: assuming directive output of 11 bytes
    sprintf(cp, "%d.%0*d", abs(sec), precision, (int) Abs(fsec));
                ^~~~~~~~~