v18-shadow-warnings.txt

text/plain

Filename: v18-shadow-warnings.txt
Type: text/plain
Part: 0
Message: Re: Cleanup shadows variable warnings, round 1
controldata_utils.c:52:29: warning: declaration shadows a variable in the global scope [-Wshadow]
   52 | get_controlfile(const char *DataDir, bool *crc_ok_p)
      |                             ^
../../src/include/miscadmin.h:173:26: note: previous declaration is here
  173 | extern PGDLLIMPORT char *DataDir;
      |                          ^
controldata_utils.c:189:32: warning: declaration shadows a variable in the global scope [-Wshadow]
  189 | update_controlfile(const char *DataDir,
      |                                ^
../../src/include/miscadmin.h:173:26: note: previous declaration is here
  173 | extern PGDLLIMPORT char *DataDir;
      |                          ^
2 warnings generated.
pgtz.c:234:22: warning: declaration shadows a variable in the global scope [-Wshadow]
  234 | pg_tzset(const char *tzname)
      |                      ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
pgtz.c:324:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  324 |         char            tzname[128];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
2 warnings generated.
brin.c:697:16: warning: declaration shadows a local variable [-Wshadow]
  697 |                         FmgrInfo   *tmp;
      |                                     ^
brin.c:589:11: note: previous declaration is here
  589 |         char       *tmp PG_USED_FOR_ASSERTS_ONLY;
      |                     ^
1 warning generated.
gistbuild.c:1161:23: warning: declaration shadows a local variable [-Wshadow]
 1161 |                         GISTPageSplitInfo *splitinfo = lfirst(lc);
      |                                            ^
gistbuild.c:1061:11: note: previous declaration is here
 1061 |         List       *splitinfo;
      |                     ^
1 warning generated.
xlogdesc.c:40:26: warning: declaration shadows a variable in the global scope [-Wshadow]
   40 | get_wal_level_string(int wal_level)
      |                          ^
../../../../src/include/access/xlog.h:96:24: note: previous declaration is here
   96 | extern PGDLLIMPORT int wal_level;
      |                        ^
xlogdesc.c:165:9: warning: declaration shadows a variable in the global scope [-Wshadow]
  165 |                 int                     wal_level;
      |                                         ^
../../../../src/include/access/xlog.h:96:24: note: previous declaration is here
   96 | extern PGDLLIMPORT int wal_level;
      |                        ^
2 warnings generated.
xlogreader.c:107:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  107 | XLogReaderAllocate(int wal_segment_size, const char *waldir,
      |                        ^
../../../../src/include/access/xlog.h:37:24: note: previous declaration is here
   37 | extern PGDLLIMPORT int wal_segment_size;
      |                        ^
1 warning generated.
xlogrecovery.c:1228:13: warning: declaration shadows a variable in the global scope [-Wshadow]
 1228 |                                   bool *backupEndRequired, bool *backupFromStandby)
      |                                         ^
xlogrecovery.c:285:13: note: previous declaration is here
  285 | static bool backupEndRequired = false;
      |             ^
xlogrecovery.c:1928:33: warning: declaration shadows a variable in the global scope [-Wshadow]
 1928 | ApplyWalRecord(XLogReaderState *xlogreader, XLogRecord *record, TimeLineID *replayTLI)
      |                                 ^
xlogrecovery.c:190:25: note: previous declaration is here
  190 | static XLogReaderState *xlogreader = NULL;
      |                         ^
xlogrecovery.c:3153:28: warning: declaration shadows a variable in the global scope [-Wshadow]
 3153 | ReadRecord(XLogPrefetcher *xlogprefetcher, int emode,
      |                            ^
xlogrecovery.c:193:24: note: previous declaration is here
  193 | static XLogPrefetcher *xlogprefetcher = NULL;
      |                        ^
xlogrecovery.c:3157:19: warning: declaration shadows a variable in the global scope [-Wshadow]
 3157 |         XLogReaderState *xlogreader = XLogPrefetcherGetReader(xlogprefetcher);
      |                          ^
xlogrecovery.c:190:25: note: previous declaration is here
  190 | static XLogReaderState *xlogreader = NULL;
      |                         ^
xlogrecovery.c:3320:31: warning: declaration shadows a variable in the global scope [-Wshadow]
 3320 | XLogPageRead(XLogReaderState *xlogreader, XLogRecPtr targetPagePtr, int reqLen,
      |                               ^
xlogrecovery.c:190:25: note: previous declaration is here
  190 | static XLogReaderState *xlogreader = NULL;
      |                         ^
xlogrecovery.c:4093:38: warning: declaration shadows a variable in the global scope [-Wshadow]
 4093 | ReadCheckpointRecord(XLogPrefetcher *xlogprefetcher, XLogRecPtr RecPtr,
      |                                      ^
xlogrecovery.c:193:24: note: previous declaration is here
  193 | static XLogPrefetcher *xlogprefetcher = NULL;
      |                        ^
6 warnings generated.
basebackup_incremental.c:599:14: warning: declaration shadows a local variable [-Wshadow]
  599 |                                 unsigned        i;
      |                                                 ^
basebackup_incremental.c:273:8: note: previous declaration is here
  273 |         int                     i;
      |                                 ^
1 warning generated.
bootstrap.c:201:11: warning: declaration shadows a variable in the global scope [-Wshadow]
  201 |         char       *progname = argv[0];
      |                     ^
../../../src/include/postmaster/postmaster.h:88:32: note: previous declaration is here
   88 | extern PGDLLIMPORT const char *progname;
      |                                ^
1 warning generated.
objectaddress.c:2144:12: warning: declaration shadows a local variable [-Wshadow]
 2144 |                 bool       *nulls;
      |                             ^
objectaddress.c:2123:8: note: previous declaration is here
 2123 |         bool            nulls[3];
      |                         ^
objectaddress.c:2161:12: warning: declaration shadows a local variable [-Wshadow]
 2161 |                 bool       *nulls;
      |                             ^
objectaddress.c:2123:8: note: previous declaration is here
 2123 |         bool            nulls[3];
      |                         ^
objectaddress.c:2198:12: warning: declaration shadows a local variable [-Wshadow]
 2198 |                 bool       *nulls;
      |                             ^
objectaddress.c:2123:8: note: previous declaration is here
 2123 |         bool            nulls[3];
      |                         ^
3 warnings generated.
pg_constraint.c:864:22: warning: declaration shadows a local variable [-Wshadow]
  864 |                         CookedConstraint *cooked;
      |                                           ^
pg_constraint.c:834:47: note: previous declaration is here
  834 | RelationGetNotNullConstraints(Oid relid, bool cooked, bool include_noinh)
      |                                               ^
1 warning generated.
parse_target.c:1613:13: warning: declaration shadows a local variable [-Wshadow]
 1613 |                                         Index           levelsup;
      |                                                         ^
parse_target.c:1522:56: note: previous declaration is here
 1522 | expandRecordVariable(ParseState *pstate, Var *var, int levelsup)
      |                                                        ^
parse_target.c:1671:13: warning: declaration shadows a local variable [-Wshadow]
 1671 |                                         Index           levelsup;
      |                                                         ^
parse_target.c:1522:56: note: previous declaration is here
 1522 | expandRecordVariable(ParseState *pstate, Var *var, int levelsup)
      |                                                        ^
2 warnings generated.
extension.c:1406:13: warning: declaration shadows a local variable [-Wshadow]
 1406 |                         char       *schemaName = get_namespace_name(reqschema);
      |                                     ^
extension.c:1200:20: note: previous declaration is here
 1200 |                                                  const char *schemaName)
      |                                                              ^
1 warning generated.
schemacmds.c:208:12: warning: declaration shadows a local variable [-Wshadow]
  208 |                 Node       *stmt = (Node *) lfirst(parsetree_item);
      |                             ^
schemacmds.c:52:39: note: previous declaration is here
   52 | CreateSchemaCommand(CreateSchemaStmt *stmt, const char *queryString,
      |                                       ^
1 warning generated.
statscmds.c:321:16: warning: declaration shadows a local variable [-Wshadow]
  321 |                         Bitmapset  *attnums = NULL;
      |                                     ^
statscmds.c:64:9: note: previous declaration is here
   64 |         int16           attnums[STATS_MAX_DIMENSIONS];
      |                         ^
1 warning generated.
tablecmds.c:15721:20: warning: declaration shadows a local variable [-Wshadow]
 15721 |                                 AlterTableCmd *cmd = lfirst_node(AlterTableCmd, lcmd);
       |                                                ^
tablecmds.c:15630:67: note: previous declaration is here
 15630 | ATPostAlterTypeParse(Oid oldId, Oid oldRelId, Oid refRelId, char *cmd,
       |                                                                   ^
tablecmds.c:15792:20: warning: declaration shadows a local variable [-Wshadow]
 15792 |                                 AlterTableCmd *cmd = makeNode(AlterTableCmd);
       |                                                ^
tablecmds.c:15630:67: note: previous declaration is here
 15630 | ATPostAlterTypeParse(Oid oldId, Oid oldRelId, Oid refRelId, char *cmd,
       |                                                                   ^
2 warnings generated.
trigger.c:1169:13: warning: declaration shadows a local variable [-Wshadow]
 1169 |                         Node       *qual;
      |                                     ^
trigger.c:189:11: note: previous declaration is here
  189 |         char       *qual;
      |                     ^
1 warning generated.
execExprInterp.c:474:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  474 |         static const void *const dispatch_table[] = {
      |                                  ^
execExprInterp.c:112:21: note: previous declaration is here
  112 | static const void **dispatch_table = NULL;
      |                     ^
1 warning generated.
nodeAgg.c:4073:20: warning: declaration shadows a local variable [-Wshadow]
 4073 |                 AggStatePerPhase phase = &aggstate->phases[phaseidx];
      |                                  ^
nodeAgg.c:3293:8: note: previous declaration is here
 3293 |         int                     phase;
      |                                 ^
1 warning generated.
nodeValuesscan.c:144:16: warning: declaration shadows a local variable [-Wshadow]
  144 |                         ExprState  *estate = (ExprState *) lfirst(lc);
      |                                     ^
nodeValuesscan.c:50:13: note: previous declaration is here
   50 |         EState     *estate;
      |                     ^
1 warning generated.
be-secure-common.c:114:44: warning: declaration shadows a variable in the global scope [-Wshadow]
  114 | check_ssl_key_file_permissions(const char *ssl_key_file, bool isServerStart)
      |                                            ^
../../../src/include/libpq/libpq.h:107:26: note: previous declaration is here
  107 | extern PGDLLIMPORT char *ssl_key_file;
      |                          ^
1 warning generated.
main.c:280:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  280 | startup_hacks(const char *progname)
      |                           ^
main.c:44:13: note: previous declaration is here
   44 | const char *progname;
      |             ^
main.c:384:18: warning: declaration shadows a variable in the global scope [-Wshadow]
  384 | help(const char *progname)
      |                  ^
main.c:44:13: note: previous declaration is here
   44 | const char *progname;
      |             ^
main.c:443:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  443 | check_root(const char *progname)
      |                        ^
main.c:44:13: note: previous declaration is here
   44 | const char *progname;
      |             ^
3 warnings generated.
equivclass.c:879:16: warning: declaration shadows a local variable [-Wshadow]
  879 |                         RelOptInfo *rel = root->simple_rel_array[i];
      |                                     ^
equivclass.c:742:15: note: previous declaration is here
  742 |                                                  Relids rel,
      |                                                         ^
1 warning generated.
createplan.c:1246:12: warning: declaration shadows a local variable [-Wshadow]
 1246 |                 Plan       *plan;
      |                             ^
createplan.c:1218:13: note: previous declaration is here
 1218 |         Append     *plan;
      |                     ^
createplan.c:2559:12: warning: declaration shadows a local variable [-Wshadow]
 2559 |                 Plan       *plan;
      |                             ^
createplan.c:2549:13: note: previous declaration is here
 2549 |         Result     *plan;
      |                     ^
2 warnings generated.
partdesc.c:229:16: warning: declaration shadows a local variable [-Wshadow]
  229 |                         ScanKeyData key[1];
      |                                     ^
partdesc.c:149:15: note: previous declaration is here
  149 |         PartitionKey key = RelationGetPartitionKey(rel);
      |                      ^
1 warning generated.
dependencies.c:1192:14: warning: declaration shadows a local variable [-Wshadow]
 1192 |                 OpExpr     *expr = (OpExpr *) clause;
      |                             ^
dependencies.c:1168:87: note: previous declaration is here
 1168 | dependency_is_compatible_expression(Node *clause, Index relid, List *statlist, Node **expr)
      |                                                                                       ^
dependencies.c:1226:22: warning: declaration shadows a local variable [-Wshadow]
 1226 |                 ScalarArrayOpExpr *expr = (ScalarArrayOpExpr *) clause;
      |                                    ^
dependencies.c:1168:87: note: previous declaration is here
 1168 | dependency_is_compatible_expression(Node *clause, Index relid, List *statlist, Node **expr)
      |                                                                                       ^
2 warnings generated.
extended_stats.c:1053:10: warning: declaration shadows a local variable [-Wshadow]
 1053 |                         bool            isnull;
      |                                         ^
extended_stats.c:1005:11: note: previous declaration is here
 1005 |         bool       *isnull;
      |                     ^
1 warning generated.
read_stream.c:963:12: warning: declaration shadows a local variable [-Wshadow]
  963 |                 void       *per_buffer_data;
      |                             ^
read_stream.c:790:52: note: previous declaration is here
  790 | read_stream_next_buffer(ReadStream *stream, void **per_buffer_data)
      |                                                    ^
1 warning generated.
bufmgr.c:1210:11: warning: declaration shadows a local variable [-Wshadow]
 1210 |                 uint32          flags = EB_SKIP_EXTENSION_LOCK;
      |                                 ^
bufmgr.c:1200:8: note: previous declaration is here
 1200 |         int                     flags;
      |                                 ^
1 warning generated.
date.c:572:9: warning: declaration shadows a variable in the global scope [-Wshadow]
  572 |         int32           days = PG_GETARG_INT32(1);
      |                         ^
../../../../src/include/utils/datetime.h:261:38: note: previous declaration is here
  261 | extern PGDLLIMPORT const char *const days[];    /* days (full names) */
      |                                      ^
date.c:596:9: warning: declaration shadows a variable in the global scope [-Wshadow]
  596 |         int32           days = PG_GETARG_INT32(1);
      |                         ^
../../../../src/include/utils/datetime.h:261:38: note: previous declaration is here
  261 | extern PGDLLIMPORT const char *const days[];    /* days (full names) */
      |                                      ^
date.c:3131:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 3131 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
3 warnings generated.
datetime.c:645:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  645 |         int                     days;
      |                                 ^
datetime.c:84:19: note: previous declaration is here
   84 | const char *const days[] = {"Sunday", "Monday", "Tuesday", "Wednesday",
      |                   ^
datetime.c:3288:32: warning: declaration shadows a variable in the global scope [-Wshadow]
 3288 | DecodeTimezoneName(const char *tzname, int *offset, pg_tz **tz)
      |                                ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
datetime.c:3343:36: warning: declaration shadows a variable in the global scope [-Wshadow]
 3343 | DecodeTimezoneNameToTz(const char *tzname)
      |                                    ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
3 warnings generated.
formatting.c:3076:25: warning: declaration shadows a variable in the global scope [-Wshadow]
 3076 |                                         const char *const *months;
      |                                                            ^
../../../../src/include/utils/datetime.h:259:38: note: previous declaration is here
  259 | extern PGDLLIMPORT const char *const months[];  /* months (3-char
      |                                      ^
1 warning generated.
jsonpath_exec.c:538:17: warning: declaration shadows a local variable [-Wshadow]
  538 |                 JsonValueList found = {0};
      |                               ^
jsonpath_exec.c:527:11: note: previous declaration is here
  527 |         List       *found;
      |                     ^
jsonpath_exec.c:1880:24: warning: declaration shadows a local variable [-Wshadow]
 1880 |                                 JsonPathExecResult res =
      |                                                    ^
jsonpath_exec.c:1781:15: note: previous declaration is here
 1781 |         JsonPathBool res;
      |                      ^
jsonpath_exec.c:1891:24: warning: declaration shadows a local variable [-Wshadow]
 1891 |                                 JsonPathExecResult res =
      |                                                    ^
jsonpath_exec.c:1781:15: note: previous declaration is here
 1781 |         JsonPathBool res;
      |                      ^
jsonpath_exec.c:2067:17: warning: declaration shadows a local variable [-Wshadow]
 2067 |                         JsonPathBool res = exec(pred, lval, rval, param);
      |                                      ^
jsonpath_exec.c:2029:21: note: previous declaration is here
 2029 |         JsonPathExecResult res;
      |                            ^
jsonpath_exec.c:4137:16: warning: declaration shadows a local variable [-Wshadow]
 4137 |                         ExprState  *state = lfirst_node(ExprState, exprlc);
      |                                     ^
jsonpath_exec.c:4110:41: note: previous declaration is here
 4110 | JsonTableInitOpaque(TableFuncScanState *state, int natts)
      |                                         ^
5 warnings generated.
pg_upgrade_support.c:229:13: warning: declaration shadows a local variable [-Wshadow]
  229 |                         char       *extName = TextDatumGetCString(textDatums[i]);
      |                                     ^
pg_upgrade_support.c:186:11: note: previous declaration is here
  186 |         text       *extName;
      |                     ^
1 warning generated.
timestamp.c:493:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  493 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
timestamp.c:562:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  562 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
timestamp.c:1533:9: warning: declaration shadows a variable in the global scope [-Wshadow]
 1533 |         int32           months = PG_GETARG_INT32(1);
      |                         ^
../../../../src/include/utils/datetime.h:259:38: note: previous declaration is here
  259 | extern PGDLLIMPORT const char *const months[];  /* months (3-char
      |                                      ^
timestamp.c:1535:9: warning: declaration shadows a variable in the global scope [-Wshadow]
 1535 |         int32           days = PG_GETARG_INT32(3);
      |                         ^
../../../../src/include/utils/datetime.h:261:38: note: previous declaration is here
  261 | extern PGDLLIMPORT const char *const days[];    /* days (full names) */
      |                                      ^
timestamp.c:2134:28: warning: declaration shadows a variable in the global scope [-Wshadow]
 2134 | dt2local(Timestamp dt, int timezone)
      |                            ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:106:13: note: previous declaration is here
  106 | extern long timezone __DARWIN_ALIAS(timezone);
      |             ^
timestamp.c:2545:9: warning: declaration shadows a variable in the global scope [-Wshadow]
 2545 |         int64           days;
      |                         ^
../../../../src/include/utils/datetime.h:261:38: note: previous declaration is here
  261 | extern PGDLLIMPORT const char *const days[];    /* days (full names) */
      |                                      ^
timestamp.c:6243:11: warning: declaration shadows a local variable [-Wshadow]
 6243 |                         int64           val;
      |                                         ^
timestamp.c:6104:5: note: previous declaration is here
 6104 |                                 val;
      |                                 ^
timestamp.c:6332:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 6332 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
timestamp.c:6570:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 6570 |         char            tzname[TZ_STRLEN_MAX + 1];
      |                         ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
9 warnings generated.
varlena.c:4438:13: warning: declaration shadows a local variable [-Wshadow]
 4438 |                         char       *chunk_start;
      |                                     ^
varlena.c:4373:15: note: previous declaration is here
 4373 |                 const char *chunk_start = p;
      |                             ^
varlena.c:6067:14: warning: declaration shadows a local variable [-Wshadow]
 6067 |                                 char       *str;
      |                                             ^
varlena.c:5902:17: note: previous declaration is here
 5902 |         StringInfoData str;
      |                        ^
2 warnings generated.
inval.c:481:2: warning: declaration shadows a local variable [-Wshadow]
  481 |         ProcessMessageSubGroup(group, RelCacheMsgs,
      |         ^
inval.c:390:31: note: expanded from macro 'ProcessMessageSubGroup'
  390 |                         SharedInvalidationMessage *msg = \
      |                                                    ^
inval.c:474:28: note: previous declaration is here
  474 |         SharedInvalidationMessage msg;
      |                                   ^
inval.c:511:2: warning: declaration shadows a local variable [-Wshadow]
  511 |         ProcessMessageSubGroup(group, RelCacheMsgs,
      |         ^
inval.c:390:31: note: expanded from macro 'ProcessMessageSubGroup'
  390 |                         SharedInvalidationMessage *msg = \
      |                                                    ^
inval.c:508:28: note: previous declaration is here
  508 |         SharedInvalidationMessage msg;
      |                                   ^
inval.c:540:2: warning: declaration shadows a local variable [-Wshadow]
  540 |         ProcessMessageSubGroup(group, RelCacheMsgs,
      |         ^
inval.c:390:31: note: expanded from macro 'ProcessMessageSubGroup'
  390 |                         SharedInvalidationMessage *msg = \
      |                                                    ^
inval.c:536:28: note: previous declaration is here
  536 |         SharedInvalidationMessage msg;
      |                                   ^
inval.c:1053:2: warning: declaration shadows a local variable [-Wshadow]
 1053 |         ProcessMessageSubGroupMulti(&transInvalInfo->PriorCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1012:66: note: previous declaration is here
 1012 | xactGetCommittedInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                                  ^
inval.c:1059:2: warning: declaration shadows a local variable [-Wshadow]
 1059 |         ProcessMessageSubGroupMulti(&transInvalInfo->ii.CurrentCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1012:66: note: previous declaration is here
 1012 | xactGetCommittedInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                                  ^
inval.c:1065:2: warning: declaration shadows a local variable [-Wshadow]
 1065 |         ProcessMessageSubGroupMulti(&transInvalInfo->PriorCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1012:66: note: previous declaration is here
 1012 | xactGetCommittedInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                                  ^
inval.c:1071:2: warning: declaration shadows a local variable [-Wshadow]
 1071 |         ProcessMessageSubGroupMulti(&transInvalInfo->ii.CurrentCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1012:66: note: previous declaration is here
 1012 | xactGetCommittedInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                                  ^
inval.c:1109:2: warning: declaration shadows a local variable [-Wshadow]
 1109 |         ProcessMessageSubGroupMulti(&inplaceInvalInfo->CurrentCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1088:60: note: previous declaration is here
 1088 | inplaceGetInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                            ^
inval.c:1115:2: warning: declaration shadows a local variable [-Wshadow]
 1115 |         ProcessMessageSubGroupMulti(&inplaceInvalInfo->CurrentCmdInvalidMsgs,
      |         ^
inval.c:406:31: note: expanded from macro 'ProcessMessageSubGroupMulti'
  406 |                         SharedInvalidationMessage *msgs = \
      |                                                    ^
inval.c:1088:60: note: previous declaration is here
 1088 | inplaceGetInvalidationMessages(SharedInvalidationMessage **msgs,
      |                                                            ^
9 warnings generated.
freepage.c:1589:9: warning: declaration shadows a local variable [-Wshadow]
 1589 |                 Size            result;
      |                                 ^
freepage.c:1480:28: note: previous declaration is here
 1480 |         FreePageBtreeSearchResult result;
      |                                   ^
1 warning generated.
fe-connect.c:3988:11: warning: declaration shadows a local variable [-Wshadow]
 3988 |                                 int                     res;
      |                                                         ^
fe-connect.c:2912:14: note: previous declaration is here
 2912 |         PGresult   *res;
      |                     ^
1 warning generated.
descriptor.c:75:46: warning: declaration shadows a variable in the global scope [-Wshadow]
   75 | add_descriptor(const char *name, const char *connection)
      |                                              ^
./preproc_extern.h:39:14: note: previous declaration is here
   39 | extern char *connection;
      |              ^
descriptor.c:94:47: warning: declaration shadows a variable in the global scope [-Wshadow]
   94 | drop_descriptor(const char *name, const char *connection)
      |                                               ^
./preproc_extern.h:39:14: note: previous declaration is here
   39 | extern char *connection;
      |              ^
descriptor.c:125:49: warning: declaration shadows a variable in the global scope [-Wshadow]
  125 | lookup_descriptor(const char *name, const char *connection)
      |                                                 ^
./preproc_extern.h:39:14: note: previous declaration is here
   39 | extern char *connection;
      |              ^
3 warnings generated.
ecpg.c:35:18: warning: declaration shadows a variable in the global scope [-Wshadow]
   35 | help(const char *progname)
      |                  ^
ecpg.c:23:20: note: previous declaration is here
   23 | static const char *progname;
      |                    ^
1 warning generated.
preproc.y:182:46: warning: declaration shadows a variable in the global scope [-Wshadow]
  182 | adjust_outofscope_cursor_vars(struct cursor *cur)
      |                                              ^
./preproc_extern.h:53:23: note: previous declaration is here
   53 | extern struct cursor *cur;
      |                       ^
preproc.y:494:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  494 |                         int initializer, int array)
      |                             ^
preproc.y:41:12: note: previous declaration is here
   41 | static int      initializer = 0;
      |                 ^
2 warnings generated.
print.c:956:10: warning: declaration shadows a local variable [-Wshadow]
  956 |                         int                     curr_nl_line;
      |                                                 ^
print.c:654:8: note: previous declaration is here
  654 |                            *curr_nl_line,
      |                             ^
1 warning generated.
findtimezone.c:234:28: warning: declaration shadows a variable in the global scope [-Wshadow]
  234 | score_timezone(const char *tzname, struct tztry *tt)
      |                            ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
findtimezone.c:320:36: warning: declaration shadows a variable in the global scope [-Wshadow]
  320 | perfect_timezone_match(const char *tzname, struct tztry *tt)
      |                                    ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
findtimezone.c:1728:27: warning: declaration shadows a variable in the global scope [-Wshadow]
 1728 | validate_zone(const char *tzname)
      |                           ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
findtimezone.c:1759:14: warning: declaration shadows a variable in the global scope [-Wshadow]
 1759 |         const char *tzname;
      |                     ^
/Library/Developer/CommandLineTools/SDKs/MacOSX26.2.sdk/usr/include/_time.h:101:25: note: previous declaration is here
  101 | extern char *_LIBC_CSTR tzname[_LIBC_COUNT(2)];
      |                         ^
4 warnings generated.
initdb.c:817:14: warning: declaration shadows a variable in the global scope [-Wshadow]
  817 |         const char *username;
      |                     ^
initdb.c:153:14: note: previous declaration is here
  153 | static char *username = NULL;
      |              ^
initdb.c:1049:11: warning: declaration shadows a variable in the global scope [-Wshadow]
 1049 |         FILE       *conf_file;
      |                     ^
initdb.c:180:14: note: previous declaration is here
  180 | static char *conf_file;
      |              ^
initdb.c:2143:31: warning: declaration shadows a variable in the global scope [-Wshadow]
 2143 | locale_date_order(const char *locale)
      |                               ^
initdb.c:140:14: note: previous declaration is here
  140 | static char *locale = NULL;
      |              ^
initdb.c:2202:45: warning: declaration shadows a variable in the global scope [-Wshadow]
 2202 | check_locale_name(int category, const char *locale, char **canonname)
      |                                             ^
initdb.c:140:14: note: previous declaration is here
  140 | static char *locale = NULL;
      |              ^
initdb.c:2265:35: warning: declaration shadows a variable in the global scope [-Wshadow]
 2265 | check_locale_encoding(const char *locale, int user_enc)
      |                                   ^
initdb.c:140:14: note: previous declaration is here
  140 | static char *locale = NULL;
      |              ^
initdb.c:2517:19: warning: declaration shadows a variable in the global scope [-Wshadow]
 2517 | usage(const char *progname)
      |                   ^
initdb.c:175:20: note: previous declaration is here
  175 | static const char *progname;
      |                    ^
initdb.c:2597:33: warning: declaration shadows a variable in the global scope [-Wshadow]
 2597 | check_need_password(const char *authmethodlocal, const char *authmethodhost)
      |                                 ^
initdb.c:158:20: note: previous declaration is here
  158 | static const char *authmethodlocal = NULL;
      |                    ^
initdb.c:2597:62: warning: declaration shadows a variable in the global scope [-Wshadow]
 2597 | check_need_password(const char *authmethodlocal, const char *authmethodhost)
      |                                                              ^
initdb.c:157:20: note: previous declaration is here
  157 | static const char *authmethodhost = NULL;
      |                    ^
8 warnings generated.
pg_amcheck.c:1183:18: warning: declaration shadows a variable in the global scope [-Wshadow]
 1183 | help(const char *progname)
      |                  ^
pg_amcheck.c:141:20: note: previous declaration is here
  141 | static const char *progname = NULL;
      |                    ^
1 warning generated.
pg_basebackup.c:1015:25: warning: declaration shadows a variable in the global scope [-Wshadow]
 1015 | ReceiveCopyData(PGconn *conn, WriteDataCallback callback,
      |                         ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_basebackup.c:1285:30: warning: declaration shadows a variable in the global scope [-Wshadow]
 1285 | ReceiveArchiveStream(PGconn *conn, pg_compress_specification *compress)
      |                              ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_basebackup.c:1600:24: warning: declaration shadows a variable in the global scope [-Wshadow]
 1600 | ReceiveTarFile(PGconn *conn, char *archive_name, char *spclocation,
      |                        ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_basebackup.c:1699:31: warning: declaration shadows a variable in the global scope [-Wshadow]
 1699 | ReceiveBackupManifest(PGconn *conn)
      |                               ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_basebackup.c:1736:39: warning: declaration shadows a variable in the global scope [-Wshadow]
 1736 | ReceiveBackupManifestInMemory(PGconn *conn, PQExpBuffer buf)
      |                                       ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
5 warnings generated.
receivelog.c:336:22: warning: declaration shadows a variable in the global scope [-Wshadow]
  336 | sendFeedback(PGconn *conn, XLogRecPtr blockpos, TimestampTz now, bool replyRequested)
      |                      ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:374:40: warning: declaration shadows a variable in the global scope [-Wshadow]
  374 | CheckServerVersionForStreaming(PGconn *conn)
      |                                        ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:452:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  452 | ReceiveXlogStream(PGconn *conn, StreamCtl *stream)
      |                           ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:744:26: warning: declaration shadows a variable in the global scope [-Wshadow]
  744 | HandleCopyStream(PGconn *conn, StreamCtl *stream,
      |                          ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:877:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  877 | CopyStreamPoll(PGconn *conn, long timeout_ms, pgsocket stop_socket)
      |                        ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:939:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  939 | CopyStreamReceive(PGconn *conn, long timeout, pgsocket stop_socket,
      |                           ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:993:29: warning: declaration shadows a variable in the global scope [-Wshadow]
  993 | ProcessKeepaliveMsg(PGconn *conn, StreamCtl *stream, char *copybuf, int len,
      |                             ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:1047:28: warning: declaration shadows a variable in the global scope [-Wshadow]
 1047 | ProcessXLogDataMsg(PGconn *conn, StreamCtl *stream, char *copybuf, int len,
      |                            ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:1178:31: warning: declaration shadows a variable in the global scope [-Wshadow]
 1178 | HandleEndOfCopyStream(PGconn *conn, StreamCtl *stream, char *copybuf,
      |                               ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
receivelog.c:1217:29: warning: declaration shadows a variable in the global scope [-Wshadow]
 1217 | CheckCopyStreamStop(PGconn *conn, StreamCtl *stream, XLogRecPtr blockpos)
      |                             ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
10 warnings generated.
streamutil.c:276:28: warning: declaration shadows a variable in the global scope [-Wshadow]
  276 | RetrieveWalSegSize(PGconn *conn)
      |                            ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:355:35: warning: declaration shadows a variable in the global scope [-Wshadow]
  355 | RetrieveDataDirCreatePerm(PGconn *conn)
      |                                   ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:409:27: warning: declaration shadows a variable in the global scope [-Wshadow]
  409 | RunIdentifySystem(PGconn *conn, char **sysid, TimeLineID *starttli,
      |                           ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:490:28: warning: declaration shadows a variable in the global scope [-Wshadow]
  490 | GetSlotInformation(PGconn *conn, const char *slot_name,
      |                            ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:584:31: warning: declaration shadows a variable in the global scope [-Wshadow]
  584 | CreateReplicationSlot(PGconn *conn, const char *slot_name, const char *plugin,
      |                               ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
streamutil.c:697:29: warning: declaration shadows a variable in the global scope [-Wshadow]
  697 | DropReplicationSlot(PGconn *conn, const char *slot_name)
      |                             ^
streamutil.c:52:12: note: previous declaration is here
   52 | PGconn     *conn = NULL;
      |             ^
6 warnings generated.
pg_createsubscriber.c:371:46: warning: declaration shadows a variable in the global scope [-Wshadow]
  371 | get_exec_path(const char *argv0, const char *progname)
      |                                              ^
pg_createsubscriber.c:134:20: note: previous declaration is here
  134 | static const char *progname;
      |                    ^
1 warning generated.
pg_receivewal.c:280:11: warning: declaration shadows a local variable [-Wshadow]
  280 |                 uint32          tli;
      |                                 ^
pg_receivewal.c:268:28: note: previous declaration is here
  268 | FindStreamingStart(uint32 *tli)
      |                            ^
1 warning generated.
pg_recvlogical.c:128:22: warning: declaration shadows a variable in the global scope [-Wshadow]
  128 | sendFeedback(PGconn *conn, TimestampTz now, bool force, bool replyRequested)
      |                      ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_recvlogical.c:1047:30: warning: declaration shadows a variable in the global scope [-Wshadow]
 1047 | flushAndSendFeedback(PGconn *conn, TimestampTz *now)
      |                              ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_recvlogical.c:1064:28: warning: declaration shadows a variable in the global scope [-Wshadow]
 1064 | prepareToTerminate(PGconn *conn, XLogRecPtr endpos, StreamStopReason reason,
      |                            ^
./streamutil.h:30:16: note: previous declaration is here
   30 | extern PGconn *conn;
      |                ^
pg_recvlogical.c:1064:45: warning: declaration shadows a variable in the global scope [-Wshadow]
 1064 | prepareToTerminate(PGconn *conn, XLogRecPtr endpos, StreamStopReason reason,
      |                                             ^
pg_recvlogical.c:50:19: note: previous declaration is here
   50 | static XLogRecPtr endpos = InvalidXLogRecPtr;
      |                   ^
4 warnings generated.
pg_controldata.c:73:24: warning: declaration shadows a variable in the global scope [-Wshadow]
   73 | wal_level_str(WalLevel wal_level)
      |                        ^
../../../src/include/access/xlog.h:96:24: note: previous declaration is here
   96 | extern PGDLLIMPORT int wal_level;
      |                        ^
1 warning generated.
pg_ctl.c:875:36: warning: declaration shadows a variable in the global scope [-Wshadow]
  875 | find_other_exec_or_die(const char *argv0, const char *target, const char *versionstr)
      |                                    ^
pg_ctl.c:93:14: note: previous declaration is here
   93 | static char *argv0 = NULL;
      |              ^
1 warning generated.
pg_dump.c:1264:18: warning: declaration shadows a variable in the global scope [-Wshadow]
 1264 | help(const char *progname)
      |                  ^
./pg_backup_utils.h:28:20: note: previous declaration is here
   28 | extern const char *progname;
      |                    ^
pg_dump.c:1612:13: warning: declaration shadows a variable in the global scope [-Wshadow]
 1612 |                                                         bool strict_names)
      |                                                              ^
pg_dump.c:154:12: note: previous declaration is here
  154 | static int      strict_names = 0;
      |                 ^
pg_dump.c:1671:16: warning: declaration shadows a variable in the global scope [-Wshadow]
 1671 |                                                            bool strict_names)
      |                                                                 ^
pg_dump.c:154:12: note: previous declaration is here
  154 | static int      strict_names = 0;
      |                 ^
pg_dump.c:1775:15: warning: declaration shadows a variable in the global scope [-Wshadow]
 1775 |                                                    bool strict_names, bool with_child_tables)
      |                                                         ^
pg_dump.c:154:12: note: previous declaration is here
  154 | static int      strict_names = 0;
      |                 ^
pg_dump.c:10713:15: warning: declaration shadows a variable in the global scope [-Wshadow]
 10713 |         CommentItem *comments;
       |                      ^
pg_dump.c:199:21: note: previous declaration is here
  199 | static CommentItem *comments = NULL;
      |                     ^
pg_dump.c:10714:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 10714 |         int                     ncomments;
       |                                 ^
pg_dump.c:200:12: note: previous declaration is here
  200 | static int      ncomments = 0;
      |                 ^
pg_dump.c:11231:15: warning: declaration shadows a variable in the global scope [-Wshadow]
 11231 |         CommentItem *comments;
       |                      ^
pg_dump.c:199:21: note: previous declaration is here
  199 | static CommentItem *comments = NULL;
      |                     ^
pg_dump.c:11232:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 11232 |         int                     ncomments;
       |                                 ^
pg_dump.c:200:12: note: previous declaration is here
  200 | static int      ncomments = 0;
      |                 ^
pg_dump.c:12964:15: warning: declaration shadows a variable in the global scope [-Wshadow]
 12964 |         CommentItem *comments;
       |                      ^
pg_dump.c:199:21: note: previous declaration is here
  199 | static CommentItem *comments = NULL;
      |                     ^
pg_dump.c:12965:8: warning: declaration shadows a variable in the global scope [-Wshadow]
 12965 |         int                     ncomments;
       |                                 ^
pg_dump.c:200:12: note: previous declaration is here
  200 | static int      ncomments = 0;
      |                 ^
10 warnings generated.
connectdb.c:42:63: warning: declaration shadows a variable in the global scope [-Wshadow]
   42 |                                 trivalue prompt_password, bool fail_on_error, const char *progname,
      |                                                                                           ^
./pg_backup_utils.h:28:20: note: previous declaration is here
   28 | extern const char *progname;
      |                    ^
1 warning generated.
pg_restore.c:533:19: warning: declaration shadows a variable in the global scope [-Wshadow]
  533 | usage(const char *progname)
      |                   ^
./pg_backup_utils.h:28:20: note: previous declaration is here
   28 | extern const char *progname;
      |                    ^
1 warning generated.
pg_dumpall.c:1840:34: warning: declaration shadows a variable in the global scope [-Wshadow]
 1840 | read_dumpall_filters(const char *filename, SimpleStringList *pattern)
      |                                  ^
pg_dumpall.c:120:14: note: previous declaration is here
  120 | static char *filename = NULL;
      |              ^
1 warning generated.
pg_resetwal.c:743:25: warning: declaration shadows a variable in the global scope [-Wshadow]
  743 | PrintControlValues(bool guessed)
      |                         ^
pg_resetwal.c:64:13: note: previous declaration is here
   64 | static bool guessed = false;    /* T if we had to guess at any values */
      |             ^
1 warning generated.
file_ops.c:189:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  189 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:208:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  208 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:231:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  231 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:245:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  245 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:259:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  259 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
file_ops.c:273:8: warning: declaration shadows a variable in the global scope [-Wshadow]
  273 |         char            dstpath[MAXPGPATH];
      |                         ^
file_ops.c:32:13: note: previous declaration is here
   32 | static char dstpath[MAXPGPATH] = "";
      |             ^
6 warnings generated.
pg_rewind.c:92:19: warning: declaration shadows a variable in the global scope [-Wshadow]
   92 | usage(const char *progname)
      |                   ^
pg_rewind.c:63:20: note: previous declaration is here
   63 | static const char *progname;
      |                    ^
pg_rewind.c:555:51: warning: declaration shadows a variable in the global scope [-Wshadow]
  555 | perform_rewind(filemap_t *filemap, rewind_source *source,
      |                                                   ^
pg_rewind.c:89:23: note: previous declaration is here
   89 | static rewind_source *source;
      |                       ^
2 warnings generated.
xlogreader.c:107:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  107 | XLogReaderAllocate(int wal_segment_size, const char *waldir,
      |                        ^
../../../src/include/access/xlog.h:37:24: note: previous declaration is here
   37 | extern PGDLLIMPORT int wal_segment_size;
      |                        ^
1 warning generated.
pg_test_fsync.c:628:29: warning: declaration shadows a variable in the global scope [-Wshadow]
  628 | print_elapse(struct timeval start_t, struct timeval stop_t, int ops)
      |                             ^
pg_test_fsync.c:74:23: note: previous declaration is here
   74 | static struct timeval start_t,
      |                       ^
pg_test_fsync.c:628:53: warning: declaration shadows a variable in the global scope [-Wshadow]
  628 | print_elapse(struct timeval start_t, struct timeval stop_t, int ops)
      |                                                     ^
pg_test_fsync.c:75:4: note: previous declaration is here
   75 |                         stop_t;
      |                         ^
2 warnings generated.
xlogdesc.c:40:26: warning: declaration shadows a variable in the global scope [-Wshadow]
   40 | get_wal_level_string(int wal_level)
      |                          ^
../../../src/include/access/xlog.h:96:24: note: previous declaration is here
   96 | extern PGDLLIMPORT int wal_level;
      |                        ^
xlogdesc.c:165:9: warning: declaration shadows a variable in the global scope [-Wshadow]
  165 |                 int                     wal_level;
      |                                         ^
../../../src/include/access/xlog.h:96:24: note: previous declaration is here
   96 | extern PGDLLIMPORT int wal_level;
      |                        ^
2 warnings generated.
xlogreader.c:107:24: warning: declaration shadows a variable in the global scope [-Wshadow]
  107 | XLogReaderAllocate(int wal_segment_size, const char *waldir,
      |                        ^
../../../src/include/access/xlog.h:37:24: note: previous declaration is here
   37 | extern PGDLLIMPORT int wal_segment_size;
      |                        ^
1 warning generated.
pgbench.c:4654:11: warning: declaration shadows a local variable [-Wshadow]
 4654 |                         int64           skipped = 0;
      |                                         ^
pgbench.c:4622:25: note: previous declaration is here
 4622 |           StatsData *agg, bool skipped, double latency, double lag)
      |                                ^
1 warning generated.
describe.c:1761:17: warning: declaration shadows a local variable [-Wshadow]
 1761 |                 printQueryOpt myopt = pset.popt;
      |                               ^
describe.c:1579:16: note: previous declaration is here
 1579 |         printTableOpt myopt = pset.popt.topt;
      |                       ^
describe.c:2287:13: warning: declaration shadows a local variable [-Wshadow]
 2287 |                         char       *schemaname = PQgetvalue(result, 0, 0);
      |                                     ^
describe.c:1571:37: note: previous declaration is here
 1571 | describeOneTableDetails(const char *schemaname,
      |                                     ^
2 warnings generated.
prompt.c:193:24: warning: declaration shadows a local variable [-Wshadow]
  193 |                                                 PGpipelineStatus status = PQpipelineStatus(pset.db);
      |                                                                  ^
prompt.c:68:27: note: previous declaration is here
   68 | get_prompt(promptStatus_t status, ConditionalStack cstack)
      |                           ^
prompt.c:364:12: warning: declaration shadows a local variable [-Wshadow]
  364 |                 char       *p = destination;
      |                             ^
prompt.c:74:14: note: previous declaration is here
   74 |         const char *p;
      |                     ^
2 warnings generated.