Explicitly disabled in-source build

gnuradio.spec

@@ -22,7 +22,7 @@
 
 Name:		gnuradio
 Version:	3.8.2.0
-Release:	1%{?alphatag:.%{alphatag}}%{?dist}
+Release:	2%{?alphatag:.%{alphatag}}%{?dist}
 Summary:	Software defined radio framework
 
 License:	GPLv3
@@ -144,13 +144,15 @@ GNU Radio examples
 %patch0 -p1
 
 %build
+# this could be dropped when f32 get retired (not counting EPEL)
+%undefine __cmake_in_source_build
+
 %cmake \
 -DSYSCONFDIR=%{_sysconfdir} \
 -DGR_PKG_DOC_DIR=%{_docdir}/%{name} \
 -DGR_PYTHON_DIR=%{python3_sitearch} \
 -DPYTHON_EXECUTABLE=%{__python3} \
-%{?mfpu_neon} \
-..
+%{?mfpu_neon}
 #-DENABLE_DOXYGEN=FALSE \
 
 %cmake_build
@@ -199,6 +201,9 @@ rm -r %{buildroot}%{_datadir}/icons/gnome
 %{_datadir}/gnuradio/examples
 
 %changelog
+* Tue Aug 25 2020 Jaroslav Škarvada <jskarvad@redhat.com> - 3.8.2.0-2
+- Explicitly disabled in-source build
+
 * Mon Aug 24 2020 Jaroslav Škarvada <jskarvad@redhat.com> - 3.8.2.0-1
 - New version
   Resolves: rhbz#1871259