[1924] Remove BUILT_SOURCES from CLEANFILES

src/lib/python/isc/util/Makefile.am

@@ -3,7 +3,6 @@ SUBDIRS = . cio tests
 python_PYTHON = __init__.py process.py socketserver_mixin.py file.py \
 		common_defs.py
 BUILT_SOURCES = common_defs.py
-CLEANFILES = $(BUILT_SOURCES)
 EXTRA_DIST = pythonize_constants.py
 
 common_defs.py: $(top_srcdir)/src/lib/util/common_defs.cc pythonize_constants.py

src/lib/util/Makefile.am

@@ -37,7 +37,7 @@ common_defs.h: const2hdr.py common_defs.cc
 	$(PYTHON) $(srcdir)/const2hdr.py $(srcdir)/common_defs.cc $@
 
 libb10_util_la_LIBADD = $(top_builddir)/src/lib/exceptions/libb10-exceptions.la
-CLEANFILES = *.gcno *.gcda common_defs.h
+CLEANFILES = *.gcno *.gcda
 
 libb10_util_includedir = $(includedir)/$(PACKAGE_NAME)/util
 libb10_util_include_HEADERS = buffer.h