-##############
-# C programs #
-##############
+##################
+# C/C++ programs #
+##################
c++ext = cc C cxx cpp
-c++sources = $(foreach ext,$(c++ext),$(filter %.$(ext),$(1)))
+c++sources = $(strip $(foreach ext,$(c++ext),$(filter %.$(ext),$(1))))
###
# template_variables - variables common to program, libraries, ...