diff --git a/valgrind-3.16.1-respect-flags-mpi.patch b/valgrind-3.16.1-respect-flags-mpi.patch
new file mode 100644
index 0000000..b5fc44d
--- /dev/null
+++ b/valgrind-3.16.1-respect-flags-mpi.patch
@@ -0,0 +1,13 @@
+diff -Naur valgrind-3.7.0.orig//mpi/Makefile.am valgrind-3.7.0/mpi/Makefile.am
+--- valgrind-3.7.0.orig/mpi/Makefile.am	2011-10-26 17:24:23.000000000 -0400
++++ valgrind-3.7.0/mpi/Makefile.am	2011-11-10 16:03:14.000000000 -0500
+@@ -7,9 +7,6 @@
+ CC = $(MPI_CC)
+ DEFS =
+ DEFAULT_INCLUDES =
+-CPPFLAGS =
+-CFLAGS =
+-LDFLAGS =
+ 
+ EXTRA_DIST = \
+ 	mpiwrap_type_test.c
diff --git a/valgrind.spec b/valgrind.spec
index 1e2ab2b..b4a8882 100644
--- a/valgrind.spec
+++ b/valgrind.spec
@@ -1,7 +1,7 @@
 %define        perl_major_ver  %(eval `perl -V:version`; echo ${version%*.[0-9]*}.0)
 
 Name:          valgrind
-Version:       3.14.0
+Version:       3.16.1
 Release:       1mamba
 Summary:       Valgrind Memory Debugger
 Group:         Development/Tools
@@ -12,14 +12,15 @@ URL:           http://valgrind.org/
 Source:        ftp://sourceware.org/pub/valgrind/valgrind-%{version}.tar.bz2
 Patch0:        %{name}-3.7.0-x86_64-fix-gcc-detection.patch
 Patch1:        %{name}-3.7.0-glibc-2.15.patch
+Patch2:        valgrind-3.16.1-respect-flags-mpi.patch
 License:       GPL
-BuildRequires: perl >= %perl_major_ver
-BuildRequires: gdb >= 6.3
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libmpi-devel
 BuildRequires: perl-devel
 ## AUTOBUILDREQ-END
+#BuildRequires: libmpi-devel
+BuildRequires: perl >= %perl_major_ver
+BuildRequires: gdb >= 6.3
 BuildRoot:     %{_tmppath}/%{name}-%{version}-buildroot
 
 %description
@@ -37,20 +38,23 @@ Requires:      %{name} = %{version}
 %description devel
 Valgrind is a GPL'd system for debugging and profiling x86-Linux programs.
 With the tools that come with Valgrind, you can automatically detect many memory management and threading bugs, avoiding hours of frustrating bug-hunting, making your programs more stable. You can also perform detailed profiling to help speed up your programs.
-
 The Valgrind distribution includes five tools: two memory error detectors, a thread error detector, a cache profiler and a heap profiler.
 Several other tools have been built with Valgrind.
+This package contains static libraries and header files needed for development.
 
-This package contains static libraries and header files need for development.
+%debug_package
 
 %prep
 %setup -q
+#-D -T
+#:<< ___EOF
 #%patch0 -p1
 #%patch1 -p1
+%patch2 -p1
 # use our own find-requires
 %define __find_provides %{_builddir}/%{name}-%{version}/find_provides.sh
 
-# don't provide `libpthread.so.0' library
+# don't provide 'libpthread.so.0' library
 cat > find_provides.sh << EOF
 #! /bin/sh
 %{_prefix}/lib/rpm/find-provides %{buildroot} %{_target_cpu} | \
@@ -61,9 +65,12 @@ chmod +x find_provides.sh
 
 sed -i "s|armv7|arm|" configure.ac
 
-%build
 autoreconf
+
+%build
+# NOTE: 3.6.1: mpi wrapper does not build with openmpi 4.0
 %configure \
+   --with-mpicc=/bin/false \
 %ifarch x86_64
    --enable-only64bit
 %endif
@@ -92,14 +99,22 @@ mv -f %{buildroot}%{_defaultdocdir}/%{name} \
 %{_bindir}/valgrind-listener
 %{_bindir}/ms_print
 %{_bindir}/vgdb
-%dir %{_libdir}/valgrind/
+%dir %{_libdir}/valgrind
 %{_libdir}/valgrind/*
+%ifarch x86_64
+%dir %{_libexecdir}/valgrind
+%{_libexecdir}/valgrind/dh_view.*
+%else
+%dir %{_prefix}/libexec/valgrind
+%{_prefix}/libexec/valgrind/dh_view.*
+%endif
 %{_mandir}/man1/valgrind.*
 %{_mandir}/man1/callgrind_*.1*
 %{_mandir}/man1/cg_annotate.1*
 %{_mandir}/man1/cg_diff.1*
 %{_mandir}/man1/cg_merge.1*
 %{_mandir}/man1/ms_print.1*
+%{_mandir}/man1/valgrind-di-server.1*
 %{_mandir}/man1/valgrind-listener.1*
 %{_mandir}/man1/vgdb.1*
 %doc AUTHORS COPYING
@@ -109,9 +124,14 @@ mv -f %{buildroot}%{_defaultdocdir}/%{name} \
 %dir %{_includedir}/valgrind
 %{_includedir}/valgrind/*
 %{_libdir}/pkgconfig/valgrind.pc
+%dir %{_docdir}/valgrind-%{version}
+%{_docdir}/valgrind-%{version}/*
 %doc FAQ.txt NEWS README*
 
 %changelog
+* Fri Dec 11 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 3.16.1-1mamba
+- update to 3.16.1
+
 * Fri Oct 26 2018 Automatic Build System <autodist@mambasoft.it> 3.14.0-1mamba
 - automatic version update by autodist