diff --git a/glib.spec b/glib.spec
index fb40874..2e68f94 100644
--- a/glib.spec
+++ b/glib.spec
@@ -5,7 +5,7 @@
 %endif
 %define        majver %(echo %version | cut -d. -f 1-2)
 Name:          glib
-Version:       2.50.3
+Version:       2.56.1
 Release:       1mamba
 Epoch:         2
 Summary:       A handy library of utility functions
@@ -150,7 +150,7 @@ This package contains libraries and header files needed for development.
 %prep
 %setup -q
 %patch0 -p1
-autoconf
+#autoconf
 
 %build
 %if "%{_build}" != "%{_host}"
@@ -161,6 +161,9 @@ ac_cv_func_posix_getgrgid_r=yes
 ac_cv_func_posix_getpwuid_r=yes
 _EOF
 %endif
+
+./autogen.sh
+
 %configure \
 %if "%{with_systemtap}" == "1"
    --enable-systemtap \
@@ -276,6 +279,7 @@ _EOF
 %if "%{with_systemtap}" == "1"
 %{_datadir}/systemtap/tapset/*.stp
 %endif
+%{_datadir}/glib-2.0/valgrind/glib.supp
 %{_libdir}/pkgconfig/*
 %{_mandir}/man1/*
 
@@ -336,6 +340,9 @@ _EOF
 %endif
 
 %changelog
+* Sat Aug 11 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 2.56.1-1mamba
+- update to 2.56.1
+
 * Thu Oct 26 2017 Automatic Build System <autodist@mambasoft.it> 2.50.3-1mamba
 - automatic update by autodist