Re: [PATCH nft] build: fix tentative generation of nft.8 after disabled doc

[Phil Sutter <phil@nwl.cc>]

Hi Laura,

On Sat, May 16, 2020 at 11:12:58PM +0200, Laura García Liébana wrote:
> On Sat, May 16, 2020 at 10:17 PM Phil Sutter <phil@nwl.cc> wrote:
> > On Fri, May 15, 2020 at 06:31:51PM +0200, Laura Garcia Liebana wrote:
> > > Despite doc generation is disabled, the makefile is trying to build it.
> > >
> > > $ ./configure --disable-man-doc
> > > $ make
> > > Making all in doc
> > > make[2]: Entering directory '/workdir/build-pkg/workdir/doc'
> > > make[2]: *** No rule to make target 'nft.8', needed by 'all-am'.  Stop.
> > > make[2]: Leaving directory '/workdir/build-pkg/workdir/doc'
> > > make[1]: *** [Makefile:479: all-recursive] Error 1
> > > make[1]: Leaving directory '/workdir/build-pkg/workdir'
> > > make: *** [Makefile:388: all] Error 2
> > >
> > > Fixes: 4f2813a313ae0 ("build: Include generated man pages in dist tarball")
> > >
> > > Reported-by: Adan Marin Jacquot <adan.marin@zevenet.com>
> > > Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
> > > ---
> > >  doc/Makefile.am | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/doc/Makefile.am b/doc/Makefile.am
> > > index 6bd90aa6..21482320 100644
> > > --- a/doc/Makefile.am
> > > +++ b/doc/Makefile.am
> > > @@ -1,3 +1,4 @@
> > > +if BUILD_MAN
> > >  man_MANS = nft.8 libnftables-json.5 libnftables.3
> >
> > Did you make sure that dist tarball still contains the generated man
> > pages after your change? Because that's what commit 4f2813a313ae0
> > ("build: Include generated man pages in dist tarball") tried to fix and
> > apparently broke what you're fixing for.
> >
> 
> Hi Phil, I tested these cases:
> - if the nft.8 already exists it won't be generated
> - if it doesn't exist it will be generated
> - if disable-man-doc then it won't be generated
> 
> I'm missing something?

No, I think your patch is fine. I wasn't sure what happens if man_MANS,
EXTRA_DIST, etc. get enclosed by the conditional. Matt's patch
explicitly removed the conditionals around man_MANS.

I tried 'make dist' after configure with --enable-man-doc and the
generated tarball's build system seems to behave fine (man pages are
included, not built again and also installed from 'make install').

So for your patch:

Acked-by: Phil Sutter <phil@nwl.cc>

Thanks, Phil