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| author | Quentin Monnet <quentin.monnet@netronome.com> | 2018-02-08 07:27:14 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-02-08 13:59:50 +0300 |
| commit | 92426820f7616caebdf6ba665f749102a670b3d4 (patch) | |
| tree | 572bcc5f3d885cc4917d2baf80f76877a4e6fb60 | |
| parent | 0badd331491097cc3702d05a6dd0264a434712b2 (diff) | |
| download | linux-92426820f7616caebdf6ba665f749102a670b3d4.tar.xz | |
tools: bpftool: exit doc Makefile early if rst2man is not available
If rst2man is not available on the system, running `make doc` from the
bpftool directory fails with an error message. However, it creates empty
manual pages (.8 files in this case). A subsequent call to `make
doc-install` would then succeed and install those empty man pages on the
system.
To prevent this, raise a Makefile error and exit immediately if rst2man
is not available before generating the pages from the rst documentation.
Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")
Reported-by: Jason van Aaardt <jason.vanaardt@netronome.com>
Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
| -rw-r--r-- | tools/bpf/bpftool/Documentation/Makefile | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/Documentation/Makefile b/tools/bpf/bpftool/Documentation/Makefile index c462a928e03d..a9d47c1558bb 100644 --- a/tools/bpf/bpftool/Documentation/Makefile +++ b/tools/bpf/bpftool/Documentation/Makefile @@ -23,7 +23,12 @@ DOC_MAN8 = $(addprefix $(OUTPUT),$(_DOC_MAN8)) man: man8 man8: $(DOC_MAN8) +RST2MAN_DEP := $(shell command -v rst2man 2>/dev/null) + $(OUTPUT)%.8: %.rst +ifndef RST2MAN_DEP + $(error "rst2man not found, but required to generate man pages") +endif $(QUIET_GEN)rst2man $< > $@ clean: |