diff --git a/ChangeLog b/ChangeLog
index af76bd7..a32784a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,30 @@
+2015-05-07 14:37  marc
+
+	* ax_check_qt.m4, ax_init_standard_project.m4, bootstrap.sh,
+	  src/version.hxx: fixed mac issues
+
+2015-05-05 20:32  marc
+
+	* debian/control.in: dependencies imprved
+
+2015-05-04 09:30  marc
+
+	* ax_init_standard_project.m4, configure.ac: much more flexible and
+	  stable package dependency checks
+
+2015-05-04 06:56  marc
+
+	* src/cert2text.cxx: forgoten to add new file
+
+2015-04-30 14:28  marc
+
+	* ChangeLog, configure.ac, src/makefile.am: new tool cert2text to
+	  show certificates
+
+2015-03-24 08:02  marc
+
+	* ax_init_standard_project.m4: add test maintainr-clean
+
 2015-03-15 20:08  marc
 
 	* src/libpcscxx.pc.in: linking needs crypto ssl and pcsclite
diff --git a/ax_init_standard_project.m4 b/ax_init_standard_project.m4
index 8dcfb24..9dc367f 100644
--- a/ax_init_standard_project.m4
+++ b/ax_init_standard_project.m4
@@ -5,7 +5,22 @@
 
 # define least version number from subversion's revision number:
 # it is taken modulo 256 due to a bug on Apple's MacOSX
-m4_define(x_version, m4_esyscmd_s(
+m4_define(x_least, m4_esyscmd_s(
+  SVN_REVISION="ERROR-UNDEFINED-REVISION-to-be-built-in-subdirectory-of-svn-checkout"
+  for path in . .. ../..; do
+    if svn info $path 2>&1 > /dev/null; then
+      SVN_REVISION=$(LANG= svn info $path | sed -n 's/Last Changed Rev: //p')
+      (cd $path && svn2cl)
+      break;
+    fi
+  done
+  # Mac does not support LEAST > 255
+  echo $ECHO_N $(($SVN_REVISION%256))
+))
+# define version number from subversion's revision number:
+# it is taken modulo 256 due to a bug on Apple's MacOSX
+# add to x_minor if revision number is > 256
+m4_define(x_minor_fixed, m4_esyscmd_s(
   SVN_REVISION="ERROR-UNDEFINED-REVISION-to-be-built-in-subdirectory-of-svn-checkout"
   for path in . .. ../..; do
     if svn info $path 2>&1 > /dev/null; then
@@ -15,7 +30,11 @@ m4_define(x_version, m4_esyscmd_s(
     fi
   done
   # Mac does not support LEAST > 255
-  echo $ECHO_N x_major.$((x_minor+$SVN_REVISION/256)).$(($SVN_REVISION%256))
+  echo $ECHO_N $((x_minor+$SVN_REVISION/256))
+))
+# setup version number
+m4_define(x_version, m4_esyscmd_s(
+  echo $ECHO_N x_major.x_minor_fixed.x_least
 ))
 
 ## bugreport mail address is taken from <user@host> in first line of AUTHORS
@@ -81,7 +100,7 @@ AC_DEFUN([AX_SUBST], [
 # m4_define(x_major, MAJOR_NUMBER) # project's major version
 # m4_define(x_minor, MINOR_NUMBER) # project's minor version
 # m4_include(ax_init_standard_project.m4)
-# AC_INIT(x_package_name, x_major.x_minor.x_least, x_bugreport, x_package_name)
+# AC_INIT(x_package_name, x_version, x_bugreport, x_package_name)
 # AM_INIT_AUTOMAKE([1.9 tar-pax])
 # AX_INIT_STANDARD_PROJECT
 #
@@ -225,7 +244,7 @@ AC_DEFUN([AX_USE_LIBTOOL], [
   # libtool versioning
   LIB_MAJOR=m4_eval(x_major+x_minor)
   LIB_MINOR=x_least
-  LIB_LEAST=x_minor
+  LIB_LEAST=x_minor_fixed
   LIB_VERSION="${LIB_MAJOR}:${LIB_MINOR}:${LIB_LEAST}"
   AM_LDFLAGS="-version-info ${LIB_VERSION}"
   AC_SUBST(AM_LDFLAGS)
diff --git a/bootstrap.sh b/bootstrap.sh
index 7862656..a9b4c8f 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -354,7 +354,7 @@ ${HEADER}m4_define(x_package_name, ${DEFAULT_PROJECT_NAME}) # project's name
 m4_define(x_major, 0) # project's major version
 m4_define(x_minor, 0) # project's minor version
 m4_include(ax_init_standard_project.m4)
-AC_INIT(x_package_name, x_major.x_minor.x_least, x_bugreport, x_package_name)
+AC_INIT(x_package_name, x_version, x_package_name)
 AM_INIT_AUTOMAKE([1.9 tar-pax])
 AX_INIT_STANDARD_PROJECT
 
diff --git a/configure.ac b/configure.ac
index 8994caf..2be7382 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ m4_define(x_package_name, libpcscxx)
 m4_define(x_major, 3)
 m4_define(x_minor, 1)
 m4_include(ax_init_standard_project.m4)
-AC_INIT(x_package_name, x_major.x_minor.x_least, x_bugreport, x_package_name)
+AC_INIT(x_package_name, x_version, x_bugreport, x_package_name)
 AM_INIT_AUTOMAKE([1.9 tar-pax])
 AX_INIT_STANDARD_PROJECT