Add BR on gcc-c++ and make

- Remove deprecated Group tag

plotutils.spec

@@ -1,10 +1,8 @@
-
 Name:      plotutils
 Version:   2.6
-Release:   19%{?dist}
+Release:   20%{?dist}
 Summary:   GNU vector and raster graphics utilities and libraries
 
-Group:     Applications/Productivity
 # libxmi is GPLv2+
 # rest is GPLv3+
 License:   GPLv2+ and GPLv3+
@@ -14,6 +12,8 @@ Patch0:    plotutils-2.6-png15.patch
 Patch1:    plotutils-aarch64.patch
 Patch2:    plotutils-werror-format-security.patch
 
+BuildRequires:   gcc-c++
+BuildRequires:   make
 BuildRequires:   flex
 BuildRequires:   libpng-devel
 BuildRequires:   xorg-x11-proto-devel
@@ -38,7 +38,6 @@ scientific data. Many of them use libplot to export graphics
 
 %package devel
 Summary:     Headers for developing programs that will use %{name}
-Group:       Development/Libraries
 Requires:    %{name} = %{version}-%{release}
 
 
@@ -110,13 +109,16 @@ fi
 
 
 %files devel
-%defattr(-, root, root, -)
 %doc TODO
 %{_includedir}/*.h
 %{_libdir}/*.so
 
 
 %changelog
+* Mon Feb 19 2018 Michael Simacek <msimacek@redhat.com> - 2.6-20
+- Add BR on gcc-c++ and make
+- Remove deprecated Group tag
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 2.6-19
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild