diff --git a/elpa-blas.patch b/elpa-blas.patch
index c089eba..a9a0c5d 100644
--- a/elpa-blas.patch
+++ b/elpa-blas.patch
@@ -6,7 +6,7 @@ diff -up mpich/configure.ac.atlas mpich/configure.ac
  
    dnl first check blas
 -  AC_SEARCH_LIBS([dgemm],[blas],[have_blas=yes],[have_blas=no])
-+  AC_SEARCH_LIBS([dgemm],[satlas blas],[have_blas=yes],[have_blas=no])
++  AC_SEARCH_LIBS([dgemm],[openblas satlas blas],[have_blas=yes],[have_blas=no])
    AC_MSG_CHECKING([whether we can link a program with a blas lib])
    AC_MSG_RESULT([${have_blas}])
  
diff --git a/elpa-pc.patch b/elpa-pc.patch
index fc43c57..bd8599a 100644
--- a/elpa-pc.patch
+++ b/elpa-pc.patch
@@ -6,4 +6,4 @@ diff -up mpich/elpa.pc.in.r mpich/elpa.pc.in
  Libs: -L${libdir} -lelpa@SUFFIX@ @LIBS@ @OPENMP_FCFLAGS@
  Cflags: -I${includedir}/elpa@SUFFIX@-@PACKAGE_VERSION@ @OPENMP_CFLAGS@
 -fcflags= -I${includedir}/elpa@SUFFIX@-@PACKAGE_VERSION@/modules @OPENMP_FCFLAGS@
-+fcflags= -I${libdir}/gfortran/modules @OPENMP_FCFLAGS@
++fcflags= -I@MPI_FORTRAN_MOD_DIR@ @OPENMP_FCFLAGS@
diff --git a/elpa-simd.patch b/elpa-simd.patch
index 9467178..9f21424 100644
--- a/elpa-simd.patch
+++ b/elpa-simd.patch
@@ -1,19 +1,17 @@
-diff -up mpich/configure.ac.avx mpich/configure.ac
---- mpich/configure.ac.avx	2016-04-03 16:02:10.334634259 +0200
-+++ mpich/configure.ac	2016-04-03 16:03:45.419882924 +0200
-@@ -196,8 +196,12 @@ AC_MSG_RESULT([${can_compile_sse}])
+diff -up mpich/configure.ac.simd mpich/configure.ac
+--- mpich/configure.ac.simd	2017-06-11 17:52:18.981738700 +0200
++++ mpich/configure.ac	2017-06-11 17:55:02.104726066 +0200
+@@ -196,6 +196,10 @@ AC_MSG_RESULT([${can_compile_sse}])
  
  dnl check whether one can compile with avx - gcc intrinsics
  
 +save_CFLAGS="$CFLAGS"
 +save_CXXFLAGS="$CXXFLAGS"
++CFLAGS="$CFLAGS -mavx"
 +
  dnl first pass: try with specified CFLAGS and CXXFLAGS
  AC_MSG_CHECKING([whether we can compile AVX intrinsics in C])
-+CFLAGS="$CFLAGS -mavx"
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-  #include <x86intrin.h>
-  int main(int argc, char **argv){
 @@ -211,6 +215,8 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  )
  AC_MSG_RESULT([${can_compile_avx}])
@@ -23,7 +21,7 @@ diff -up mpich/configure.ac.avx mpich/configure.ac
    AC_MSG_CHECKING([whether we can compile AVX intrinsics in C++])
    AC_LANG_PUSH([C++])
    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-@@ -228,10 +234,16 @@ if test "${can_compile_avx}" = "yes" ; t
+@@ -228,9 +234,15 @@ if test "${can_compile_avx}" = "yes" ; t
    AC_MSG_RESULT([${can_compile_avx}])
    if test "${can_compile_avx}" = "no" ; then
      AC_MSG_WARN([Cannot compile C++ with AVX: disabling AVX alltogether])
@@ -34,12 +32,11 @@ diff -up mpich/configure.ac.avx mpich/configure.ac
  
 +CFLAGS=$save_CFLAGS
 +CXXFLAGS=$save_CXXFLAGS
++CFLAGS="$CFLAGS -mavx2 -mfma"
 +
  AC_MSG_CHECKING([whether we can compile AVX2 intrinsics in C])
-+CFLAGS="$CFLAGS -mavx2 -mfma"
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
   #include <x86intrin.h>
-  int main(int argc, char **argv){
 @@ -246,6 +258,8 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([
  )
  AC_MSG_RESULT([${can_compile_avx2}])
@@ -72,9 +69,9 @@ diff -up mpich/configure.ac.avx mpich/configure.ac
  
  rm -rf modules/ .fortran_dependencies/
  mkdir modules
-diff -up mpich/Makefile.am.avx mpich/Makefile.am
---- mpich/Makefile.am.avx	2015-11-22 20:05:49.000000000 +0100
-+++ mpich/Makefile.am	2016-04-03 16:02:10.336634243 +0200
+diff -up mpich/Makefile.am.simd mpich/Makefile.am
+--- mpich/Makefile.am.simd	2015-11-22 20:05:49.000000000 +0100
++++ mpich/Makefile.am	2017-06-11 17:52:18.983738737 +0200
 @@ -8,6 +8,8 @@ AM_LDFLAGS = $(SCALAPACK_LDFLAGS)
  # libelpa
  lib_LTLIBRARIES = libelpa@SUFFIX@.la
diff --git a/elpa.spec b/elpa.spec
index 0f351e0..fe8c982 100644
--- a/elpa.spec
+++ b/elpa.spec
@@ -1,9 +1,27 @@
+%if 0%{?fedora} >= 26
+%ifnarch x86_64 %{ix86} armv7hl %{power64} aarch64
+# matches openblas/scalapack ExclusiveArch
+%global with_atlas 1
+%endif
+%else
+%global with_atlas 1
+%endif
+
+%if 0%{?rhel}
+# execstack (prelink) is built only for x86_64 and ppc64 on RHEL
+%ifarch x86_64 ppc64
+%global with_execstack 1
+%endif
+%else
+%global with_execstack 1
+%endif
+
 Summary: High-performance library for parallel solution of eigenvalue problems
 Name: elpa
 Version: 2015.11.001
-Release: 4%{?dist}
-URL: http://elpa.mpcdf.mpg.de/software
-Source0: http://elpa.mpcdf.mpg.de/elpa-%{version}.tar.gz
+Release: 5%{?dist}
+URL: https://elpa.mpcdf.mpg.de/software
+Source0: https://elpa.mpcdf.mpg.de/html/Releases/%{version}/elpa-%{version}.tar.gz
 # fix pkgconfig file
 Patch1: elpa-pc.patch
 # build against atlas instead of reference blas
@@ -11,10 +29,16 @@ Patch2: elpa-blas.patch
 # fix detection of AVX(2) compiler support and use them only in the library
 Patch3: elpa-simd.patch
 License: LGPLv3+
+%if %{with atlas}
 BuildRequires: atlas-devel
+%else
+BuildRequires: openblas-devel
+%endif
 BuildRequires: gcc-gfortran
 BuildRequires: libtool
+%if %{with execstack}
 BuildRequires: /usr/bin/execstack
+%endif
 
 %description
 ELPA is a Fortran-based high-performance computational library for the
@@ -125,69 +149,60 @@ mkdir _openmp
 cp -pr mpich openmpi _openmp/
 
 %build
-%global defopts --disable-silent-rules --disable-static
-%global ldflags -L%{_libdir}/atlas
-%global fcflags -ffree-line-length-none
+%global defopts --disable-silent-rules --disable-static --docdir=%{_pkgdocdir}
+%global ldflags %{__global_ldflags}
+%if %{with atlas}
+%global ldflags %{ldflags} -L%{_libdir}/atlas
+%endif
+%global fcflags %{optflags} -I%{_fmoddir} -ffree-line-length-none
 
-%{_mpich_load}
-export LDFLAGS="%{ldflags} -L$MPI_LIB"
-export FCFLAGS="%{fcflags} -I$MPI_FORTRAN_MOD_DIR"
-pushd mpich
-%configure  %{defopts} \
- --libdir=$MPI_LIB
+. /etc/profile.d/modules.sh
 
-make %{?_smp_mflags} V=1
-popd
+for mpi in mpich openmpi ; do
+  module load mpi/${mpi}-%{_arch}
+  export CFLAGS="%{optflags}"
+  export LDFLAGS="%{ldflags} -L$MPI_LIB"
+  export FCFLAGS="%{fcflags} -I$MPI_FORTRAN_MOD_DIR"
+  for s in '' _openmp ; do
+    pushd ${s:-.}/${mpi}
+    sed -i -e "s,@MPI_FORTRAN_MOD_DIR@,$MPI_FORTRAN_MOD_DIR," elpa.pc.in
+    %configure %{defopts} \
+      ${s:+--enable-openmp} \
+      --libdir=$MPI_LIB
 
-pushd _openmp/mpich
-%configure %{defopts} \
- --enable-openmp \
- --libdir=$MPI_LIB
-
-make %{?_smp_mflags} V=1
-popd
-%{_mpich_unload}
-
-%{_openmpi_load}
-export LDFLAGS="%{ldflags} -L$MPI_LIB"
-export FCFLAGS="%{fcflags} -I$MPI_FORTRAN_MOD_DIR"
-pushd openmpi
-%configure %{defopts} \
- --libdir=$MPI_LIB
-
-make %{?_smp_mflags} V=1
-popd
-
-pushd _openmp/openmpi
-%configure %{defopts} \
- --enable-openmp \
- --libdir=$MPI_LIB
-
-make %{?_smp_mflags} V=1
-popd
-%{_openmpi_unload}
+    make %{?_smp_mflags} V=1
+    popd
+  done
+  module unload mpi/${mpi}-%{_arch}
+done
 
 %install
+. /etc/profile.d/modules.sh
 for s in '' _openmp ; do
   for mpi in mpich openmpi ; do
+    module load mpi/${mpi}-%{_arch}
     pushd ${s:-.}/${mpi}
     make DESTDIR=%{buildroot} install
     rm %{buildroot}%{_bindir}/elpa?_test_*
-    mkdir -p %{buildroot}%{_libdir}/${mpi}/bin
-    mv %{buildroot}%{_bindir}/elpa2_print_kernels${s} %{buildroot}%{_libdir}/${mpi}/bin/
+    mkdir -p %{buildroot}$MPI_BIN
+    mv %{buildroot}%{_bindir}/elpa2_print_kernels${s} %{buildroot}$MPI_BIN
+%if %{with execstack}
     execstack -c .libs/libelpa${s}.so.?.* %{buildroot}%{_libdir}/${mpi}/lib/libelpa${s}.so.?.*
-    mkdir -p %{buildroot}%{_fmoddir}/${mpi}
+%endif
+    mkdir -p %{buildroot}$MPI_FORTRAN_MOD_DIR
     for f in $(ls -1 %{buildroot}%{_includedir}/elpa${s}-%{version}/modules/*.mod) ; do
       m=$(basename ${f} .mod)
-      mv %{buildroot}%{_includedir}/elpa${s}-%{version}/modules/${m}.mod %{buildroot}%{_fmoddir}/${mpi}/${m}${s}.mod
+      mv %{buildroot}%{_includedir}/elpa${s}-%{version}/modules/${m}.mod %{buildroot}$MPI_FORTRAN_MOD_DIR/${m}${s}.mod
     done
+    rmdir %{buildroot}%{_includedir}/elpa${s}-%{version}/modules
     rm %{buildroot}%{_libdir}/${mpi}/lib/libelpa${s}.la
-# fix-up fcflags include path per mpi implementation
-    sed -i -e "/^fcflags.*modules/s,/modules,/modules/${mpi}," %{buildroot}%{_libdir}/${mpi}/lib/pkgconfig/elpa${s}-%{version}.pc
     popd
+    module unload mpi/${mpi}-%{_arch}
   done
 done
 
+# testsuite takes 6.5 hours on ARMv7
+%ifnarch %{arm}
 %if 1
 %check
 %{_mpich_load}
@@ -206,6 +221,7 @@ make check V=1 || cat ./test-suite.log
 popd
 %{_openmpi_unload}
 %endif
+%endif
 
 %post mpich -p /sbin/ldconfig
 
@@ -237,7 +253,7 @@ popd
 %{_libdir}/mpich/lib/libelpa_openmp.so
 %{_libdir}/mpich/lib/pkgconfig/elpa-%{version}.pc
 %{_libdir}/mpich/lib/pkgconfig/elpa_openmp-%{version}.pc
-%{_fmoddir}/mpich/*.mod
+%{_fmoddir}/mpich*/*.mod
 
 # only non-mt openmpi build, see bug #1105902
 %files openmpi
@@ -251,10 +267,18 @@ popd
 %exclude %{_libdir}/openmpi/lib/libelpa_openmp.so
 %{_libdir}/openmpi/lib/pkgconfig/elpa-%{version}.pc
 %exclude %{_libdir}/openmpi/lib/pkgconfig/elpa_openmp-%{version}.pc
-%{_fmoddir}/openmpi/*.mod
-%exclude %{_fmoddir}/openmpi/*_openmp.mod
+%{_fmoddir}/openmpi*/*.mod
+%exclude %{_fmoddir}/openmpi*/*_openmp.mod
 
 %changelog
+* Sun Jun 11 2017 Dominik Mierzejewski <rpm@greysector.net> 2015.11.001-5
+- update URL and Source URL, switch to https
+- factorize build process
+- fix Fortran mods path (#1409235)
+- build against openblas on supported arches to match scalapack
+- don't run the testsuite on ARM 32bit (takes 6.5 hours)
+- execstack is not available on some arches for EPEL (#1460531)
+
 * Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2015.11.001-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild