When expanding %p in archive_command or restore_command, translate

slashes to backslashes #ifdef WIN32.  This is to cope with the fact
that Windows seems exceedingly unfriendly to slashes in shell commands,
as per recent discussion.

src/backend/access/transam/xlog.c

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.157 2004/08/08 03:22:08 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/access/transam/xlog.c,v 1.158 2004/08/09 16:26:01 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1962,7 +1962,17 @@ RestoreArchivedFile(char *path, const char *xlogfname,
 					/* %p: full path of target file */
 					sp++;
 					StrNCpy(dp, xlogpath, endp-dp);
+#ifndef WIN32
 					dp += strlen(dp);
+#else
+					/* On Windows, change / to \ in the substituted path */
+					while (*dp)
+					{
+						if (*dp == '/')
+							*dp = '\\';
+						dp++;
+					}
+#endif
 					break;
 				case 'f':
 					/* %f: filename of desired file */

src/backend/postmaster/pgarch.c

@@ -19,7 +19,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/postmaster/pgarch.c,v 1.5 2004/08/05 23:32:10 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/postmaster/pgarch.c,v 1.6 2004/08/09 16:26:06 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -436,7 +436,17 @@ pgarch_archiveXlog(char *xlog)
 					/* %p: full path of source file */
 					sp++;
 					StrNCpy(dp, pathname, endp-dp);
+#ifndef WIN32
 					dp += strlen(dp);
+#else
+					/* On Windows, change / to \ in the substituted path */
+					while (*dp)
+					{
+						if (*dp == '/')
+							*dp = '\\';
+						dp++;
+					}
+#endif
 					break;
 				case 'f':
 					/* %f: filename of source file */