From 5cdd65f3241ce10c66953228daef60df7b3966d1 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Wed, 15 Dec 2010 23:50:41 -0500
Subject: [PATCH] Fix up getopt() reset management so it works on recent mingw.

The mingw people don't appear to care about compatibility with non-GNU
versions of getopt, so force use of our own copy of getopt on Windows.
Also, ensure that we make use of optreset when using our own copy.

Per report from Andrew Dunstan.  Back-patch to all versions supported
on Windows.
---
 configure                           | 25 +++++++++++++++++++++----
 configure.in                        | 21 ++++++++++++++-------
 src/backend/postmaster/postmaster.c |  5 +++--
 src/backend/tcop/postgres.c         |  5 +++--
 4 files changed, 41 insertions(+), 15 deletions(-)

diff --git a/configure b/configure
index 08fd1c8443..51d27d8c7d 100755
--- a/configure
+++ b/configure
@@ -20758,6 +20758,23 @@ esac
 
 fi
 
+# mingw has adopted a GNU-centric interpretation of optind/optreset,
+# so always use our version on Windows.
+if test "$PORTNAME" = "win32"; then
+  case " $LIBOBJS " in
+  *" getopt.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS getopt.$ac_objext"
+ ;;
+esac
+
+  case " $LIBOBJS " in
+  *" getopt_long.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS getopt_long.$ac_objext"
+ ;;
+esac
+
+fi
+
 # Cygwin's erand48() is broken (always returns zero) in some releases,
 # so force use of ours.
 if test "$PORTNAME" = "cygwin"; then
@@ -20880,25 +20897,25 @@ fi
 done
 
 
-case " $LIBOBJS " in
+  case " $LIBOBJS " in
   *" kill.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS kill.$ac_objext"
  ;;
 esac
 
-case " $LIBOBJS " in
+  case " $LIBOBJS " in
   *" open.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS open.$ac_objext"
  ;;
 esac
 
-case " $LIBOBJS " in
+  case " $LIBOBJS " in
   *" win32env.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS win32env.$ac_objext"
  ;;
 esac
 
-case " $LIBOBJS " in
+  case " $LIBOBJS " in
   *" win32error.$ac_objext "* ) ;;
   *) LIBOBJS="$LIBOBJS win32error.$ac_objext"
  ;;
diff --git a/configure.in b/configure.in
index 3a0d43f808..b999b9481a 100644
--- a/configure.in
+++ b/configure.in
@@ -1328,6 +1328,13 @@ if test "$PORTNAME" = "solaris"; then
   AC_LIBOBJ(getopt)
 fi
 
+# mingw has adopted a GNU-centric interpretation of optind/optreset,
+# so always use our version on Windows.
+if test "$PORTNAME" = "win32"; then
+  AC_LIBOBJ(getopt)
+  AC_LIBOBJ(getopt_long)
+fi
+
 # Cygwin's erand48() is broken (always returns zero) in some releases,
 # so force use of ours.
 if test "$PORTNAME" = "cygwin"; then
@@ -1336,13 +1343,13 @@ fi
 
 # Win32 support
 if test "$PORTNAME" = "win32"; then
-AC_REPLACE_FUNCS(gettimeofday)
-AC_LIBOBJ(kill)
-AC_LIBOBJ(open)
-AC_LIBOBJ(win32env)
-AC_LIBOBJ(win32error)
-AC_DEFINE([HAVE_SYMLINK], 1,
-          [Define to 1 if you have the `symlink' function.])
+  AC_REPLACE_FUNCS(gettimeofday)
+  AC_LIBOBJ(kill)
+  AC_LIBOBJ(open)
+  AC_LIBOBJ(win32env)
+  AC_LIBOBJ(win32error)
+  AC_DEFINE([HAVE_SYMLINK], 1,
+            [Define to 1 if you have the `symlink' function.])
 fi
 
 if test "$with_readline" = yes; then
diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 90854f44d7..18a238d5ed 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -313,7 +313,8 @@ extern char *optarg;
 extern int	optind,
 			opterr;
 
-#ifdef HAVE_INT_OPTRESET
+/* If not HAVE_GETOPT, we are using src/port/getopt.c, which has optreset */
+#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
 extern int	optreset;			/* might not be declared by system headers */
 #endif
 
@@ -751,7 +752,7 @@ PostmasterMain(int argc, char *argv[])
 	 * getopt(3) library so that it will work correctly in subprocesses.
 	 */
 	optind = 1;
-#ifdef HAVE_INT_OPTRESET
+#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
 	optreset = 1;				/* some systems need this too */
 #endif
 
diff --git a/src/backend/tcop/postgres.c b/src/backend/tcop/postgres.c
index ff2e9bd0aa..7657458693 100644
--- a/src/backend/tcop/postgres.c
+++ b/src/backend/tcop/postgres.c
@@ -78,7 +78,8 @@
 extern char *optarg;
 extern int	optind;
 
-#ifdef HAVE_INT_OPTRESET
+/* If not HAVE_GETOPT, we are using src/port/getopt.c, which has optreset */
+#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
 extern int	optreset;			/* might not be declared by system headers */
 #endif
 
@@ -3442,7 +3443,7 @@ process_postgres_switches(int argc, char *argv[], GucContext ctx)
 	 * or when this function is called a second time with another array.
 	 */
 	optind = 1;
-#ifdef HAVE_INT_OPTRESET
+#if defined(HAVE_INT_OPTRESET) || !defined(HAVE_GETOPT)
 	optreset = 1;				/* some systems need this too */
 #endif