iAdd missing dependency -- python3-devel

Signed-off-by: Gris Ge <fge@redhat.com>

pywbem.spec

@@ -8,7 +8,7 @@
 
 Name:           pywbem
 Version:        0.12.3
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Python WBEM client interface and related utilities
 Group:          Development/Libraries
 License:        LGPLv2
@@ -17,9 +17,11 @@ Source0:        https://github.com/pywbem/pywbem/archive/%{version}.tar.gz
 %if %{with python2}
 BuildRequires:  python2-pip python2-pbr
 BuildRequires:  python2-pyyaml python2-ply python2-rpm-macros
+BuildRequires:  python2-devel
 %endif
 BuildRequires:  python3-pip python3-PyYAML python3-ply python3-rpm-macros
 BuildRequires:  python3-pbr
+BuildRequires:  python3-devel
 BuildArch:      noarch
 
 %global _description\
@@ -134,6 +136,9 @@ rm -rf %{buildroot}/usr/bin/*.bat
 %doc README.rst
 
 %changelog
+* Tue Jun 26 2018 Gris Ge <fge@redhat.com> - 0.12.3-4
+- iAdd missing dependency -- python3-devel
+
 * Tue Jun 26 2018 Gris Ge <fge@redhat.com> - 0.12.3-3
 - Rebuild again with --target=f29-python.