- $(AM_V_GEN) $(AWK) -f $(DX_BASEDIR)/scripts/gen-tree.awk $< >$@.tmp
- $(AM_V_at) mv -f $@.tmp $@
-$(GUIFILES:.dat=.h): $(DX_BASEDIR)/scripts/gen-tree.awk
-DISTCLEANFILES += $(GUIFILES:.dat=.h)
-EXTRA_DIST += $(DX_BASEDIR)/scripts/gen-tree.awk $(GUIFILES)
-
-check_PROGRAMS = t/boardmove t/boardbit t/ewmhicon t/rng-test
+ $(AM_V_GEN) :; { \
+ $(AWK) -f $(DX_BASEDIR)/scripts/gen-tree.awk $< && \
+ printf '%s\n' \
+ 'sub(/^#&/, "\\&") == 0 { next }' \
+ '{ has_strtab=1 } END { if (!has_strtab) { exit(0); } print "" }' \
+ | $(AWK) -f - -f $(DX_BASEDIR)/scripts/gen-strtab.awk $<; \
+ } >$@-t
+ $(AM_V_at) mv -f $@-t $@
+$(TREEFILES:.dat=.h): $(DX_BASEDIR)/scripts/gen-strtab.awk
+EXTRA_DIST += $(DX_BASEDIR)/scripts/gen-strtab.awk
+$(TREEFILES:.dat=.h): $(DX_BASEDIR)/scripts/gen-tree.awk
+EXTRA_DIST += $(DX_BASEDIR)/scripts/gen-tree.awk
+DISTCLEANFILES += $(TREEFILES:.dat=.h)
+EXTRA_DIST += $(TREEFILES)
+
+check_PROGRAMS = t/boardbit \
+ t/boardmove \
+ t/boardrect \
+ t/checkgoal \
+ t/ewmhicon \
+ t/rng-test