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