diff --git a/enblend-enfuse-4.2-gcc-11.1.0.patch b/enblend-enfuse-4.2-gcc-11.1.0.patch
new file mode 100644
index 0000000..cbb4251
--- /dev/null
+++ b/enblend-enfuse-4.2-gcc-11.1.0.patch
@@ -0,0 +1,77 @@
+diff -r ef8470f9d682 src/anneal.h
+--- a/src/anneal.h	Sun Feb 12 15:25:10 2017 +0100
++++ b/src/anneal.h	Tue Jul 28 10:48:23 2020 +0100
+@@ -29,6 +29,7 @@
+ #include <algorithm>
+ #include <limits>
+ #include <vector>
++#include <limits>
+ 
+ #ifdef _WIN32
+ #include <cmath>
+diff -r ef8470f9d682 src/exposure_weight.cc
+--- a/src/exposure_weight.cc	Sun Feb 12 15:25:10 2017 +0100
++++ b/src/exposure_weight.cc	Tue Jul 28 10:48:23 2020 +0100
+@@ -21,6 +21,7 @@
+ 
+ #include <cassert>
+ #include <iostream>
++#include <limits>
+ 
+ #include "global.h"
+ #include "openmp_def.h"         // omp::atomic_t
+diff -r ef8470f9d682 src/fixmath.h
+--- a/src/fixmath.h	Sun Feb 12 15:25:10 2017 +0100
++++ b/src/fixmath.h	Tue Jul 28 10:48:23 2020 +0100
+@@ -27,6 +27,7 @@
+ #endif
+ 
+ #include <cmath>
++#include <limits>
+ 
+ #include <time.h>
+ 
+diff -r ef8470f9d682 src/minimizer.h
+--- a/src/minimizer.h	Sun Feb 12 15:25:10 2017 +0100
++++ b/src/minimizer.h	Tue Jul 28 10:48:23 2020 +0100
+@@ -26,6 +26,7 @@
+ #include <config.h>
+ #endif
+ 
++#include <limits>
+ #include <string>
+ #include <stdexcept>
+ #include <vector>
+diff -r ef8470f9d682 src/opencl.h
+--- a/src/opencl.h	Sun Feb 12 15:25:10 2017 +0100
++++ b/src/opencl.h	Tue Jul 28 10:48:23 2020 +0100
+@@ -37,6 +37,7 @@
+ #include <thread>
+ #include <type_traits>          // std::add_const
+ #include <vector>
++#include <limits>
+ 
+ #define __CL_ENABLE_EXCEPTIONS
+ 
+diff -r ef8470f9d682 src/openmp_vigra.h
+--- a/src/openmp_vigra.h	Sun Feb 12 15:25:10 2017 +0100
++++ b/src/openmp_vigra.h	Tue Jul 28 10:48:23 2020 +0100
+@@ -31,6 +31,7 @@
+ #include <vigra/combineimages.hxx>
+ #include <vigra/convolution.hxx>
+ #include <vigra/distancetransform.hxx>
++#include <limits>
+ 
+ #include "openmp_def.h"
+ 
+diff -r ef8470f9d682 src/self_test.cc
+--- a/src/self_test.cc	Sun Feb 12 15:25:10 2017 +0100
++++ b/src/self_test.cc	Tue Jul 28 10:48:23 2020 +0100
+@@ -34,6 +34,7 @@
+ #include <cmath>                // fabsf
+ #include <iostream>
+ #include <string>
++#include <limits>
+ 
+ #include "self_test.h"
+ 
diff --git a/enblend-enfuse.spec b/enblend-enfuse.spec
index f411ef1..bfa1d5e 100644
--- a/enblend-enfuse.spec
+++ b/enblend-enfuse.spec
@@ -1,11 +1,11 @@
 Name:          enblend-enfuse
 Version:       4.2
-Release:       1mamba
+Release:       2mamba
 Summary:       Image Blending with Multiresolution Splines
 Group:         Applications/Multimedia
 Vendor:        openmamba
 Distribution:  openmamba
-Packager:      Davide Madrisan <davide.madrisan@gmail.com>
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://enblend.sourceforge.net/
 Source:        http://downloads.sourceforge.net/enblend/enblend-enfuse-%{version}.tar.gz
 Patch1:        enblend-enfuse-4.0-libpng-1.5.patch
@@ -13,45 +13,37 @@ Patch2:        enblend-enfuse-4.0-boost-1.46.1.patch
 Patch3:        enblend-enfuse-4.0-boost-1.50.patch
 Patch4:        enblend-enfuse-4.1.1-texinfo-5.patch
 Patch5:        enblend-enfuse-4.1.1-texinfo-5.1.patch
+Patch6:        enblend-enfuse-4.2-gcc-11.1.0.patch
 License:       GPL
-Provides:      enblend = %{version}
-Requires(post):%{__install_info}
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libGL-devel
-BuildRequires: libGLU-devel
-BuildRequires: libICE-devel
-BuildRequires: libSM-devel
-BuildRequires: libXi-devel
-BuildRequires: libXmu-devel
-BuildRequires: libboost-devel
-BuildRequires: libfreeglut-devel
 BuildRequires: libgcc
-BuildRequires: libglew-devel
+BuildRequires: libgomp-devel
+BuildRequires: libgperftools-devel
 BuildRequires: libgsl-devel
-BuildRequires: libilmbase-devel
-BuildRequires: libjpeg-devel
 BuildRequires: liblcms2-devel
 BuildRequires: libopenexr-devel
-BuildRequires: libpng-devel
 BuildRequires: libstdc++6-devel
 BuildRequires: libtiff-devel
 BuildRequires: libvigra-devel
-BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
-BuildRequires: libvigra-devel >= 1.10.0-1mamba
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+BuildRequires: libvigra-devel >= 1.11.1-2mamba
+Provides:      enblend = %{version}
+Requires(post):%{__install_info}
 
 %description
 Enblend blends away the seams in a panoramic image mosaic using a multi-resolution spline.
 Enfuse merges different exposures of the same scene to produce an image that looks much like a tone-mapped image.
 
+%debug_package
+
 %prep
 %setup -q -n %{name}-%{version}
 #%patch1 -p0
 #%patch2 -p1
 #%patch3 -p0
 #%patch5 -p1
+%patch6 -p1
 
 #sed -i -e 's/src:://g;s/CFG::/CFG_/g' doc/*.texi doc/define2set.pl configure.in
 
@@ -59,7 +51,11 @@ Enfuse merges different exposures of the same scene to produce an image that loo
 #autoreconf -f -i
 %configure \
    --disable-static \
-   --with-boost-filesystem
+   --with-boost-filesystem \
+   --with-tcmalloc \
+   --enable-opencl \
+   --enable-openmp \
+   CXXFLAGS="%{optflags} -std=gnu++14"
 
 # --enable-openmp
 
@@ -98,6 +94,9 @@ exit 0
 #ChangeLog NEWS README README.txt
 
 %changelog
+* Sun Jun 27 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 4.2-2mamba
+- rebuilt by autoport with build requirements: libvigra-devel>=1.11.1-2mamba
+
 * Sat Apr 02 2016 Automatic Build System <autodist@mambasoft.it> 4.2-1mamba
 - automatic version update by autodist