added BR: gcc-c++ according to new packaging guidelines

snappy.spec

@@ -1,6 +1,6 @@
 Name:           snappy
 Version:        1.1.7
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        Fast compression and decompression library
 
 Group:          System Environment/Libraries
@@ -14,6 +14,7 @@ Patch0:         %{name}-gtest.patch
 Patch1:         %{name}-version-macros.patch
 
 BuildRequires:  cmake
+BuildRequires:  gcc-c++
 BuildRequires:  gtest-devel
 
 %description
@@ -93,6 +94,9 @@ ctest -V %{?_smp_mflags}
 
 
 %changelog
+* Mon Feb 19 2018 Martin Gieseking <martin.gieseking@uos.de> - 1.1.7-5
+- Added BR: gcc-c++ according to new packaging guidelines.
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.1.7-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild