diff --git a/raspberrypi-userland-20210317git-aarch64-brcmegl.patch b/raspberrypi-userland-20210317git-aarch64-brcmegl.patch
new file mode 100644
index 0000000..6a8f0fc
--- /dev/null
+++ b/raspberrypi-userland-20210317git-aarch64-brcmegl.patch
@@ -0,0 +1,11 @@
+--- userland-20210317git/pkgconfig/brcmegl.pc.in.orig	2021-03-17 18:18:00.619027674 +0000
++++ userland-20210317git/pkgconfig/brcmegl.pc.in	2021-03-17 18:18:14.530793761 +0000
+@@ -7,7 +7,7 @@
+ Description: Fake brcmEGL package for RPi
+ Version: 10
+ Requires: bcm_host
+-Libs: -L${libdir} -lbrcmEGL -lbrcmGLESv2 -lbcm_host -lvchostif
++Libs: -L${libdir} -lbcm_host -lvchostif
+ Cflags: -I${includedir} -I${includedir}/interface/vmcs_host/linux \
+         -I${includedir}/interface/vcos/pthreads
+ 
diff --git a/raspberrypi-userland.spec b/raspberrypi-userland.spec
index 9dde099..4429564 100644
--- a/raspberrypi-userland.spec
+++ b/raspberrypi-userland.spec
@@ -1,5 +1,5 @@
 Name:          raspberrypi-userland
-Version:       20201012git
+Version:       20210317git
 Release:       1mamba
 Summary:       Libraries for interfacing to Raspberry Pi GPU
 Group:         System/Libraries
@@ -13,6 +13,7 @@ Source2:       tvservice-off
 Source3:       tvservice-on
 Source4:       tvservice-ison
 Patch0:        %{name}-20121028git-disable_cmake_toolchain_check.patch
+Patch1:        raspberrypi-userland-20210317git-aarch64-brcmegl.patch
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -22,7 +23,6 @@ BuildRequires: gcc-c++
 BuildRequires: git
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
 ExclusiveArch: arm aarch64
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Libraries for interfacing to Raspberry Pi GPU.
@@ -38,7 +38,7 @@ Source: https://github.com/raspberrypi/userland.git
 %package -n libraspberrypi
 Group:         System/Libraries
 Summary:       Libraries for interfacing to Raspberry Pi GPU
-Obsoletes:     raspberrypi-libs
+Obsoletes:     raspberrypi-libs < 20210317git
 Provides:      raspberrypi-libs = %{?epoch:%epoch:}%{version}-%{release}
 
 %description -n libraspberrypi
@@ -48,7 +48,7 @@ This package contains shared libraries for the Raspberry Pi.
 Group:         Development/Libraries
 Summary:       Development files for the Raspberry Pi GPU
 Requires:      libraspberrypi = %{?epoch:%epoch:}%{version}-%{release}
-Obsoletes:     raspberrypi-devel
+Obsoletes:     raspberrypi-devel < 20210317git
 Provides:      raspberrypi-devel = %{?epoch:%epoch:}%{version}-%{release}
 
 %description -n libraspberrypi-devel
@@ -60,6 +60,9 @@ This package contains libraries and header files for developing applications tha
 %setup -q -n userland-%{version}
 #:<< _EOF
 #%patch0 -p1
+%ifarch aarch64
+%patch1 -p1
+%endif
 
 %build
 # missing -lOpenVG
@@ -88,7 +91,7 @@ for lib in libfdt.so; do
 done
 %endif
 
-install -D %{S:1} %{buildroot}%{_sysconfdir}/ld.so.conf.d/vmcs.conf
+install -D -m0644 %{S:1} %{buildroot}%{_sysconfdir}/ld.so.conf.d/vmcs.conf
 
 install -m0755 %{S:2} %{buildroot}/opt/vc/bin/tvservice-off
 install -m0755 %{S:3} %{buildroot}/opt/vc/bin/tvservice-on
@@ -103,6 +106,10 @@ rm -f %{buildroot}/opt/vc/sbin/vcfiled
 rm -f %{buildroot}/opt/vc/share/install/vcfiled
 rm -f %{buildroot}/etc/init.d/vcfiled
 
+# move pkgconfig files to standard location
+install -d -m0755 %{buildroot}%{_libdir}
+mv %{buildroot}/opt/vc/lib/pkgconfig %{buildroot}%{_libdir}/
+
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
@@ -140,9 +147,14 @@ rm -f %{buildroot}/etc/init.d/vcfiled
 /opt/vc/include/interface
 /opt/vc/include/vcinclude
 /opt/vc/include/*.h
-/opt/vc/lib/pkgconfig/*.pc
+%{_libdir}/pkgconfig/*.pc
 
 %changelog
+* Wed Mar 17 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 20210317git-1mamba
+- update to 20210317git
+- libraspberrypi-userland-devel: move pkgconfig files to %_libdir
+- aarch64: workaround for brcmegl.pc to fix SDL2 build but may not be working
+
 * Mon Oct 12 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 20201012git-1mamba
 - update to 20201012git