diff --git a/mozilla/db/sqlite3/src/os.h b/mozilla/db/sqlite3/src/os.h
index 4854964fbef..0e539ed4870 100644
--- a/mozilla/db/sqlite3/src/os.h
+++ b/mozilla/db/sqlite3/src/os.h
@@ -29,12 +29,19 @@
 #   if defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(__BORLANDC__)
 #     define OS_WIN 1
 #     define OS_UNIX 0
+#     define OS_OS2 0
+#   elif defined(_EMX_) || defined(_OS2) || defined(OS2) || defined(OS_OS2)
+#     define OS_WIN 0
+#     define OS_UNIX 0
+#     define OS_OS2 1
 #   else
 #     define OS_WIN 0
 #     define OS_UNIX 1
+#     define OS_OS2 0
 #  endif
 # else
 #  define OS_UNIX 0
+#  define OS_OS2 0
 # endif
 #else
 # ifndef OS_WIN
@@ -54,6 +61,9 @@
 #if OS_WIN
 # include "os_win.h"
 #endif
+#if OS_OS2
+# include "os_os2.h"
+#endif
 
 /* os_other.c and os_other.h are not delivered with SQLite.  These files
 ** are place-holders that can be filled in by third-party developers to
diff --git a/mozilla/db/sqlite3/src/os_os2.c b/mozilla/db/sqlite3/src/os_os2.c
index d07f76c9ca8..a997d03eae9 100755
--- a/mozilla/db/sqlite3/src/os_os2.c
+++ b/mozilla/db/sqlite3/src/os_os2.c
@@ -48,6 +48,13 @@
 # define SQLITE_OS2_THREADS 1
 #endif
 
+/*
+** Do not include any of the File I/O interface procedures if the
+** SQLITE_OMIT_DISKIO macro is defined (indicating that there database
+** will be in-memory only)
+*/
+#ifndef SQLITE_OMIT_DISKIO
+
 /*
 ** Delete the named file
 */
@@ -546,6 +553,32 @@ int sqlite3OsClose(OsFile *id){
   return SQLITE_OK;
 }
 
+/*
+** Turn a relative pathname into a full pathname.  Return a pointer
+** to the full pathname stored in space obtained from sqliteMalloc().
+** The calling function is responsible for freeing this space once it
+** is no longer needed.
+*/
+char *sqlite3OsFullPathname(const char *zRelative){
+  char *zFull = 0;
+  char zPath[260];    /* max OS/2 path length, incl drive */
+  if( !_abspath(zPath, zRelative, sizeof(zPath)) ){
+    sqlite3SetString(&zFull, zPath, 0);
+  }else{
+    char zBuf[260];
+    snprintf(zPath, sizeof(zPath), "%s/%s",
+             getcwd(zBuf, sizeof(zBuf)), zRelative);
+    sqlite3SetString(&zFull, zPath, 0);
+  }
+  return zFull;
+}
+
+#endif /* SQLITE_OMIT_DISKIO */
+/***************************************************************************
+** Everything above deals with file I/O.  Everything that follows deals
+** with other miscellanous aspects of the operating system interface
+****************************************************************************/
+
 /*
 ** Get information to seed the random number generator.  The seed
 ** is written into the buffer zBuf[256].  The calling function must
@@ -617,26 +650,6 @@ void sqlite3OsLeaveMutex(){
 #endif
 }
 
-/*
-** Turn a relative pathname into a full pathname.  Return a pointer
-** to the full pathname stored in space obtained from sqliteMalloc().
-** The calling function is responsible for freeing this space once it
-** is no longer needed.
-*/
-char *sqlite3OsFullPathname(const char *zRelative){
-  char *zFull = 0;
-  char zPath[260];    /* max OS/2 path length, incl drive */
-  if( !_abspath(zPath, zRelative, sizeof(zPath)) ){
-    sqlite3SetString(&zFull, zPath, 0);
-  }else{
-    char zBuf[260];
-    snprintf(zPath, sizeof(zPath), "%s/%s",
-             getcwd(zBuf, sizeof(zBuf)), zRelative);
-    sqlite3SetString(&zFull, zPath, 0);
-  }
-  return zFull;
-}
-
 /*
 ** The following variable, if set to a non-zero value, becomes the result
 ** returned from sqlite3OsCurrentTime().  This is used for testing.
@@ -662,24 +675,4 @@ int sqlite3OsCurrentTime(double *prNow){
   return 0;
 }
 
-#if 0 /* NOT USED */
-/*
-** Find the time that the file was last modified.  Write the
-** modification time and date as a Julian Day number into *prNow and
-** return SQLITE_OK.  Return SQLITE_ERROR if the modification
-** time cannot be found.
-*/
-int sqlite3OsFileModTime(OsFile *id, double *prNow){
-  int rc;
-  struct stat statbuf;
-  if( fstat(id->h, &statbuf)==0 ){
-    *prNow = statbuf.st_mtime/86400.0 + 2440587.5;
-    rc = SQLITE_OK;
-  }else{
-    rc = SQLITE_ERROR;
-  }
-  return rc;
-}
-#endif /* NOT USED */
-
 #endif /* OS_OS2 */