--- configure.ac	2014-03-12 18:26:40.000000000 +0200
+++ configure.ac.db53	2014-12-03 01:27:18.063896918 +0200
@@ -161,7 +161,7 @@
 		have_smime=no
 	fi
 ])
- 
+
 if test x$have_smime != xno ; then
 	AC_DEFINE(CRYPT_BACKEND_CLASSIC_SMIME, 1, [Define if you want clasic S/MIME support.])
 	MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS smime.o crypt-mod-smime-classic.o"
@@ -274,7 +274,7 @@
 	done
         AC_CHECK_LIB($cf_ncurses, initscr,
                 [MUTTLIBS="$MUTTLIBS -l$cf_ncurses"
-		
+
                 if test "$cf_ncurses" = ncursesw; then
 			AC_CHECK_HEADERS(ncursesw/ncurses.h,[cf_cv_ncurses_header="ncursesw/ncurses.h"])
 		else
@@ -623,7 +623,7 @@
 
 dnl -- imap dependencies --
 
-AC_ARG_WITH(gss, AS_HELP_STRING([--with-gss@<:@=PFX@:>@],[Compile in GSSAPI authentication for IMAP]), 
+AC_ARG_WITH(gss, AS_HELP_STRING([--with-gss@<:@=PFX@:>@],[Compile in GSSAPI authentication for IMAP]),
     gss_prefix="$withval", gss_prefix="no")
 if test "$gss_prefix" != "no"
 then
@@ -721,7 +721,7 @@
 AM_CONDITIONAL(USE_SSL, test x$need_ssl = xyes)
 
 AC_ARG_WITH(sasl, AS_HELP_STRING([--with-sasl@<:@=PFX@:>@],[Use SASL network security library]),
-        [	
+        [
         if test "$with_sasl" != "no"
         then
           if test "$need_socket" != "yes"
@@ -881,7 +881,7 @@
         db_requested=bdb
       fi
     fi
-    
+
     dnl -- Tokyo Cabinet --
     if test "$with_tokyocabinet" != "no" \
 	    && test "$db_requested" = auto -o "$db_requested" = tc
@@ -980,7 +980,7 @@
                 bdbpfx="$bdbpfx $d/$v"
             done
         done
-        BDB_VERSIONS="db-4 db4 db-5 db5 db-5.2 db5.2 db52 db-5.1 db5.1 db51 db-5.0 db5.0 db50 db-4.8 db4.8 db48 db-4.7 db4.7 db47 db-4.6 db4.6 db46 db-4.5 db4.5 db45 db-4.4 db4.4 db44 db-4.3 db4.3 db43 db-4.2 db4.2 db42 db-4.1 db4.1 db41 db ''"
+        BDB_VERSIONS="db-4 db4 db-5 db5 db-5.3 db5.3 db53 db-5.2 db5.2 db52 db-5.1 db5.1 db51 db-5.0 db5.0 db50 db-4.8 db4.8 db48 db-4.7 db4.7 db47 db-4.6 db4.6 db46 db-4.5 db4.5 db45 db-4.4 db4.4 db44 db-4.3 db4.3 db43 db-4.2 db4.2 db42 db-4.1 db4.1 db41 db ''"
         AC_MSG_CHECKING([for BerkeleyDB > 4.0])
         for d in $bdbpfx; do
             BDB_INCLUDE_DIR=""