1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2include ../../../scripts/Makefile.include
3
4INSTALL ?= install
5RM ?= rm -f
6RMDIR ?= rmdir --ignore-fail-on-non-empty
7
8ifeq ($(V),1)
9  Q =
10else
11  Q = @
12endif
13
14prefix ?= /usr/local
15mandir ?= $(prefix)/man
16man8dir = $(mandir)/man8
17
18MAN8_RST = $(wildcard bpftool*.rst)
19
20_DOC_MAN8 = $(patsubst %.rst,%.8,$(MAN8_RST))
21DOC_MAN8 = $(addprefix $(OUTPUT),$(_DOC_MAN8))
22
23man: man8
24man8: $(DOC_MAN8)
25
26RST2MAN_DEP := $(shell command -v rst2man 2>/dev/null)
27RST2MAN_OPTS += --verbose --strip-comments
28
29list_pages = $(sort $(basename $(filter-out $(1),$(MAN8_RST))))
30see_also = $(subst " ",, \
31	"\n" \
32	"SEE ALSO\n" \
33	"========\n" \
34	"\t**bpf**\ (2),\n" \
35	"\t**bpf-helpers**\\ (7)" \
36	$(foreach page,$(call list_pages,$(1)),",\n\t**$(page)**\\ (8)") \
37	"\n")
38
39$(OUTPUT)%.8: %.rst
40ifndef RST2MAN_DEP
41	$(error "rst2man not found, but required to generate man pages")
42endif
43	$(QUIET_GEN)( cat $< ; printf "%b" $(call see_also,$<) ) | rst2man $(RST2MAN_OPTS) > $@
44
45clean:
46	$(call QUIET_CLEAN, Documentation)
47	$(Q)$(RM) $(DOC_MAN8)
48
49install: man
50	$(call QUIET_INSTALL, Documentation-man)
51	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(man8dir)
52	$(Q)$(INSTALL) -m 644 $(DOC_MAN8) $(DESTDIR)$(man8dir)
53
54uninstall:
55	$(call QUIET_UNINST, Documentation-man)
56	$(Q)$(RM) $(addprefix $(DESTDIR)$(man8dir)/,$(_DOC_MAN8))
57	$(Q)$(RMDIR) $(DESTDIR)$(man8dir)
58
59.PHONY: man man8 clean install uninstall
60.DEFAULT_GOAL := man
61