manpages: generate manpages

extensions/GNUmakefile.in

@@ -58,7 +58,7 @@ targets_install := ${obj-m}
 
 .PHONY: all install clean distclean FORCE
 
-all: modules ${targets}
+all: modules ${targets} matches.man targets.man
 
 install: modules_install ${targets_install}
 	@mkdir -p "${DESTDIR}${xtlibdir}";
@@ -68,7 +68,7 @@ clean: clean_modules
 	rm -f *.oo *.so;
 
 distclean: clean
-	rm -f .*.d;
+	rm -f .*.d .manpages.lst;
 
 -include .*.d
 
@@ -96,3 +96,34 @@ lib%.so: lib%.oo
 
 lib%.oo: ${srcdir}/lib%.c
 	${AM_VERBOSE_CC} ${CC} ${AM_DEPFLAGS} ${AM_CFLAGS} -D_INIT=lib$*_init -DPIC -fPIC ${CFLAGS} -o $@ -c $<;
+
+
+#
+#	Manpages
+#
+wcman_matches := $(wildcard ${srcdir}/libxt_[a-z]*.man)
+wcman_targets := $(wildcard ${srcdir}/libxt_[A-Z]*.man)
+wlist_matches := $(patsubst ${srcdir}/libxt_%.man,%,${wcman_matches})
+wlist_targets := $(patsubst ${srcdir}/libxt_%.man,%,${wcman_targets})
+
+.manpages.lst: FORCE
+	@echo "${wlist_targets} ${wlist_matches}" >$@.tmp; \
+	cmp -s $@ $@.tmp || mv $@.tmp $@; \
+	rm -f $@.tmp;
+
+man_run    = \
+	${AM_VERBOSE_GEN} \
+	for ext in $(1); do \
+		f="${srcdir}/libxt_$$ext.man"; \
+		if [ -f "$$f" ]; then \
+			echo ".SS $$ext"; \
+			cat "$$f"; \
+			continue; \
+		fi; \
+	done >$@;
+
+matches.man: .manpages.lst ${wcman_matches}
+	$(call man_run,${wlist_matches})
+
+targets.man: .manpages.lst ${wcman_targets}
+	$(call man_run,${wlist_targets})