diff --git a/silicon-1.8.1-gcc-5.3.patch b/silicon-1.8.1-gcc-5.3.patch
new file mode 100644
index 0000000..6424a10
--- /dev/null
+++ b/silicon-1.8.1-gcc-5.3.patch
@@ -0,0 +1,10 @@
+--- silicon-1.8.1-src/Silicon/qtsingleapplication/qtlocalpeer.cpp.orig	2012-09-25 21:03:19.027000075 +0200
++++ silicon-1.8.1-src/Silicon/qtsingleapplication/qtlocalpeer.cpp	2012-09-25 21:03:58.894000074 +0200
+@@ -56,6 +56,7 @@
+ static PProcessIdToSessionId pProcessIdToSessionId = 0;
+ #endif
+ #if defined(Q_OS_UNIX)
++#include <unistd.h>
+ #include <time.h>
+ #endif
+ 
diff --git a/silicon.spec b/silicon.spec
index ec79cef..aa384a9 100644
--- a/silicon.spec
+++ b/silicon.spec
@@ -1,6 +1,6 @@
 Name:          silicon
 Version:       1.8.1
-Release:       1mamba
+Release:       2mamba
 Summary:       Silicon Empire is set of tools to Burn, Copy, Backup, Manage and more, your optical discs like CDs, DVDs and Blu-Rays
 Group:         Graphical Desktop/Applications/Utilities
 Vendor:        openmamba
@@ -8,6 +8,7 @@ Distribution:  openmamba
 Packager:      Ercole 'ercolinux' Carpanetto <ercole69@gmail.com>
 URL:           http://getsilicon.org/
 Source:        http://getsilicon.org/download/silicon-%{version}-src.tar.gz
+Patch0:        silicon-1.8.1-gcc-5.3.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -18,6 +19,7 @@ BuildRequires: libQtDeclarative
 BuildRequires: libstdc++6-devel
 BuildRequires: libtag-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libtag-devel >= 1.9.1
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %debug_package
@@ -27,6 +29,7 @@ Silicon Empire is set of tools to Burn, Copy, Backup, Manage and … your optica
 
 %prep
 %setup -q -n %{name}-%{version}-src
+%patch0 -p1
 
 %build
 %cmake -d build
@@ -54,5 +57,8 @@ Silicon Empire is set of tools to Burn, Copy, Backup, Manage and … your optica
 %doc COPYING COPYING.LESSER
 
 %changelog
+* Tue Dec 29 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 1.8.1-2mamba
+- mass rebuild with libtag 1.9.1
+
 * Sun Apr 29 2012 Ercole 'ercolinux' Carpanetto <ercole69@gmail.com> 1.8.1-1mamba
 - package created by autospec