diff --git a/anjuta-3.20.0-gcc-6.1.0.patch b/anjuta-3.20.0-gcc-6.1.0.patch
new file mode 100644
index 0000000..38dd807
--- /dev/null
+++ b/anjuta-3.20.0-gcc-6.1.0.patch
@@ -0,0 +1,12 @@
+--- anjuta-3.20.0/plugins/build-basic-autotools/executer.c.orig	2016-07-24 20:28:00.297104311 +0200
++++ anjuta-3.20.0/plugins/build-basic-autotools/executer.c	2016-07-24 20:34:04.117336443 +0200
+@@ -376,8 +376,7 @@
+ 			{
+ 				gchar *oldcmd = cmd;
+ 
+-				cmd = g_strdup_printf (plugin->commands[IANJUTA_BUILDABLE_COMMAND_EXECUTE],
+-					oldcmd);
++				cmd = g_strdup_printf ("%s", plugin->commands[IANJUTA_BUILDABLE_COMMAND_EXECUTE]);
+ 
+ 				g_free (oldcmd);
+ 			} else {
diff --git a/anjuta.spec b/anjuta.spec
index 1c3365e..84a8dfd 100644
--- a/anjuta.spec
+++ b/anjuta.spec
@@ -1,6 +1,6 @@
 %define majver %(echo %version|cut -d. -f1-2)
 Name:          anjuta
-Version:       3.18.2
+Version:       3.20.0
 Release:       1mamba
 Summary:       Integrated development environment for C and C++
 Group:         Graphical Desktop/Applications/Development
@@ -10,6 +10,7 @@ Packager:      Automatic Build System <autodist@mambasoft.it>
 URL:           http://anjuta.sourceforge.net/
 Source:        ftp://ftp.gnome.org/pub/GNOME/sources/anjuta/%{majver}/anjuta-%{version}.tar.xz
 Patch0:        anjuta-3.8.3-gcc-4.8.patch
+Patch1:        anjuta-3.20.0-gcc-6.1.0.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glade-devel
@@ -144,11 +145,13 @@ Documentation for Anjuta DevStudio provided in DocBook format.
 #-D -T
 #:<< ___EOF
 #%patch0 -p1
+%patch1 -p1
 
 %build
 #:<< ____EOF
 %configure \
-   CFLAGS="-O2" CXXFLAGS="-O2" FFLAGS="-O2" \
+   CFLAGS="%{optflags} -O2 -Wno-error=format-nonliteral -Wno-error=format-y2k" \
+   CXXFLAGS="%{optflags} -O2" FFLAGS="-O2" \
    --disable-gtk-doc \
    --disable-scrollkeeper \
    --host=
@@ -260,6 +263,9 @@ fi
 %doc %{_docdir}/anjuta/TODO
 
 %changelog
+* Sun May 08 2016 Automatic Build System <autodist@mambasoft.it> 3.20.0-1mamba
+- automatic version update by autodist
+
 * Tue Jan 19 2016 Automatic Build System <autodist@mambasoft.it> 3.18.2-1mamba
 - automatic version update by autodist