diff --git a/ChangeLog b/ChangeLog
index dc9dd49..6ef1a56 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,6 @@
 1.9.1:
-	- fixed messed up configure flags, backward
-	  compatible again
+	- fixed messed up configure flags, backward, be compatible again
+	- fixed berkeley m4 makro, again
 	- removed bashisms in samples
 	- applied patch of freebsd port
 
diff --git a/VERSION b/VERSION
index 9ab8337..ee672d8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.9.1
+1.9.1
\ No newline at end of file
diff --git a/config/ax_berkeley_db_cxx.m4 b/config/ax_berkeley_db_cxx.m4
index 78a2ce8..1d2ae00 100644
--- a/config/ax_berkeley_db_cxx.m4
+++ b/config/ax_berkeley_db_cxx.m4
@@ -75,11 +75,11 @@ AC_DEFUN([AX_BERKELEY_DB_CXX],
       AC_MSG_CHECKING([for Berkeley DB (C++)])
   else
       minvermajor=`echo $minversion | cut -d. -f1`
-      minverminor=`echo $minversion | cut -d. -f2`
-      minverpatch=`echo $minversion | cut -d. -f3`
-      minvermajor=${minvermajor:-0}
-      minverminor=${minverminor:-0}
-      minverpatch=${minverpatch:-0}
+      minverminor=`echo $minversion | cut -d. -f2 -s`
+      minverpatch=`echo $minversion | cut -d. -f3 -s`
+      if test -z "$minvermajor"; then minvermajor=0; fi
+      if test -z "$minverminor"; then minverminor=0; fi
+      if test -z "$minverpatch"; then minverpatch=0; fi
       AC_MSG_CHECKING([for Berkeley DB (C++) >= $minvermajor.$minverminor.$minverpatch])
   fi
 
@@ -95,12 +95,12 @@ AC_DEFUN([AX_BERKELEY_DB_CXX],
 	  for version in "${major}.${minor}" "${major}${minor}"; do
 
 	      try_libs="-ldb_cxx-${version}%-ldb-${version} -ldb${version}_cxx%-ldb${version}"
-	      try_headers="db$version/db_cxx.h db`echo $version | sed -e 's,\..*,,g'`/db_cxx.h"
-
+	      try_headers="db${major}.${minor}/db_cxx.h db${major}${minor}/db_cxx.h db${major}/db_cxx.h"
 	      for db_cxx_hdr in $try_headers ; do
 		  for db_cxx_lib in $try_libs; do
 		    db_cxx_lib="$libdbdir `echo "$db_cxx_lib" | sed 's/%/ /g'`"
 		    LIBS="$old_LIBS $db_cxx_lib"
+		    #echo "Trying <$db_cxx_lib> <$db_cxx_hdr>"
 		    if test -z $DB_CXX_HEADER ; then
 		      AC_LINK_IFELSE(
 			  [AC_LANG_PROGRAM(
diff --git a/configure.ac b/configure.ac
index 72dec3c..4af3162 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 
 AC_PREREQ(2.61)
 
-define([dbtoolversion], esyscmd([sh -c "cat VERSION|head -1"]))
+define([dbtoolversion], esyscmd([sh -c "cat VERSION"]))dnl
 
 # what we are compiling
 AC_INIT([dbtool], [dbtoolversion], [tlinden@cpan.org])
@@ -211,7 +211,7 @@ if test "$GDBM" = "no"; then
      export LDFLAGS
      export LIBS
      export CXXFLAGS
-    AX_BERKELEY_DB_CXX([4.0.0],[
+    AX_BERKELEY_DB_CXX([4],[
 	    LDFLAGS="$DB_CXX_LIBS $LDFLAGS"
 	    BERKELEY="yes"
 	    ],[BERKELEY="no"])