I got:
gcc -O2 -fno-strict-aliasing -g -Wall -Wmissing-prototypes -Wmissing-declarations
-I/home/alvherre/CVS/pgsql/source/13commitOpt/src/interfaces/libpq-I../../../src/include
-I/home/alvherre/CVS/pgsql/source/13commitOpt/src/include-D_GNU_SOURCE -DFRONTEND -c -o pg_dumpall.o
/home/alvherre/CVS/pgsql/source/13commitOpt/src/bin/pg_dump/pg_dumpall.c-MMD
/home/alvherre/CVS/pgsql/source/13commitOpt/src/bin/pg_dump/pg_dumpall.c: In function `dumpTimestamp':
/home/alvherre/CVS/pgsql/source/13commitOpt/src/bin/pg_dump/pg_dumpall.c:826: warning: implicit declaration of function
`time'
/home/alvherre/CVS/pgsql/source/13commitOpt/src/bin/pg_dump/pg_dumpall.c:828: warning: implicit declaration of function
`strftime'
/home/alvherre/CVS/pgsql/source/13commitOpt/src/bin/pg_dump/pg_dumpall.c:828: warning: implicit declaration of function
`localtime'
--
Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)
"La naturaleza, tan frágil, tan expuesta a la muerte... y tan viva"