+BASH_SCRIPTS_IN := $(call src-wildcard,*.bash)
+EXPECT_SCRIPTS_IN := $(call src-wildcard,*.expect)
+PERL_SCRIPTS_IN := $(call src-wildcard,*.pl)
+PYTHON_SCRIPTS_IN := $(call src-wildcard,*.py)
+SCM_SCRIPTS_IN := $(call src-wildcard,*.scm)
+SH_SCRIPTS_IN := $(call src-wildcard,*.sh)
-PERL_SCRIPTS_IN := $(wildcard *.pl)
+BASH_SCRIPTS = $(addprefix $(outdir)/, $(BASH_SCRIPTS_IN:.bash=))
+EXPECT_SCRIPTS = $(addprefix $(outdir)/, $(EXPECT_SCRIPTS_IN:.expect=))
PERL_SCRIPTS = $(addprefix $(outdir)/, $(PERL_SCRIPTS_IN:.pl=))
-SH_SCRIPTS_IN := $(wildcard *.sh)
-SH_SCRIPTS = $(addprefix $(outdir)/, $(SH_SCRIPTS_IN:.sh=))
-PYTHON_SCRIPTS_IN := $(wildcard *.py)
PYTHON_SCRIPTS = $(addprefix $(outdir)/, $(PYTHON_SCRIPTS_IN:.py=))
-ALL_SCRIPTS_IN = $(SH_SCRIPTS_IN) $(PERL_SCRIPTS_IN) $(PYTHON_SCRIPTS_IN)
-EXTRA_DIST_FILES += $(ALL_SCRIPTS_IN)
+SCM_SCRIPTS = $(addprefix $(outdir)/, $(SCM_SCRIPTS_IN:.scm=))
+SH_SCRIPTS = $(addprefix $(outdir)/, $(SH_SCRIPTS_IN:.sh=))
+
+ALL_SCRIPTS_IN = $(BASH_SCRIPTS_IN) $(EXPECT_SCRIPTS_IN) $(PERL_SCRIPTS_IN) $(PYTHON_SCRIPTS_IN) $(SCM_SCRIPTS_IN) $(SH_SCRIPTS_IN)
+SOURCE_FILES += $(ALL_SCRIPTS_IN)