Fix boost_python library detection on CentOS 8

Signed-off-by: François Andriot <francois.andriot@free.fr>

ConfigureChecks.cmake

@@ -100,6 +100,10 @@ if( BUILD_KIG AND WITH_KIG_PYTHON_SCRIPTING )
 
 find_package( Boost COMPONENTS python${PYTHON_VERSION_MAJOR}${PYTHON_VERSION_MINOR} )
 
+if( NOT Boost_FOUND )
+    find_package( Boost COMPONENTS python${PYTHON_VERSION_MAJOR} )
+endif( )
+
 if( NOT Boost_FOUND )
     find_package( Boost COMPONENTS python )
 endif( )
@@ -110,6 +114,9 @@ if( NOT Boost_FOUND )
      set( KIG_ENABLE_PYTHON_SCRIPTING 1 )
 endif( NOT Boost_FOUND )
 
+if( NOT Boost_PYTHON_LIBRARY AND Boost_PYTHON${PYTHON_VERSION_MAJOR}_LIBRARY )
+    set( Boost_PYTHON_LIBRARY "${Boost_PYTHON${PYTHON_VERSION_MAJOR}_LIBRARY}" )
+endif( )
 if( NOT Boost_PYTHON_LIBRARY AND Boost_PYTHON${PYTHON_VERSION_MAJOR}${PYTHON_VERSION_MINOR}_LIBRARY )
     set( Boost_PYTHON_LIBRARY "${Boost_PYTHON${PYTHON_VERSION_MAJOR}${PYTHON_VERSION_MINOR}_LIBRARY}" )
 endif( )