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