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Remove optreset from src/port/ implementations of getopt and getopt_long.

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We don't actually need optreset, because we can easily fix the code to
ensure that it's cleanly restartable after having completed a scan over the
argv array; which is the only case we need to restart in.  Getting rid of
it avoids a class of interactions with the system libraries and allows
reversion of my change of yesterday in postmaster.c and postgres.c.

Back-patch to 8.4.  Before that the getopt code was a bit different anyway.
This commit is contained in:
Tom Lane
2010-12-16 16:22:05 -05:00
parent cd1fefa973
commit 61b53695fb
5 changed files with 26 additions and 25 deletions
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5
src/backend/tcop/postgres.c
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@ -78,8 +78,7 @@
extern char *optarg;
extern int optind;
/* If not HAVE_GETOPT, we are using src/port/getopt.c, which has optreset */
#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
#ifdef HAVE_INT_OPTRESET
extern int optreset; /* might not be declared by system headers */
#endif
@ -3443,7 +3442,7 @@ process_postgres_switches(int argc, char *argv[], GucContext ctx)
* or when this function is called a second time with another array.
*/
optind = 1;
#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
#ifdef HAVE_INT_OPTRESET
optreset = 1; /* some systems need this too */
#endif