GNU logs - #52256, boring messages

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Subject: bug#52256: conditional info pages don't work
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the gdb/binutils/gcc projects don't commit info pages to the git tree.
but people build them from git on old distros semi-frequently.  so the
tree handles things like old versions of makeinfo -- if a version is
too old, then info pages aren't built.

unfortunately, automake doesn't seem to handle this situation correctly.
it wants to always build the .info pages even when they're under an
automake conditional that is disabled.

consider the attached files which are a reduced testcase.  the texinfo
file has errors in it purely to show the automake issue.

$ autoconf --version | head -1
autoconf (GNU Autoconf) 2.71
$ automake --version | head -1
automake (GNU automake) 1.16.5
$ autoreconf -fi
$ ./configure -q
$ make
  MAKEINFO ctf-spec.info
ctf-spec.texi:2: unknown command `forcedError'
make: *** [Makefile:327: ctf-spec.info] Error 1

if i add a stub target in the Makefile.am, it works correctly:

--- a/Makefile.am
+++ b/Makefile.am
@@ -2,4 +2,6 @@
 info_TEXINFOS =
 if BUILD_INFO
 info_TEXINFOS += ctf-spec.texi
+else
+ctf-spec.info:
 endif

$ autoreconf -fi
$ ./configure -q
$ make
make: Nothing to be done for 'all'.
-mike

--FWrEkX/Hryua5GRu
Content-Type: application/pkix-attr-cert
Content-Disposition: attachment; filename="configure.ac"
Content-Transfer-Encoding: quoted-printable

AC_INIT(cond-info, 0)=0AAM_INIT_AUTOMAKE=0AAM_SILENT_RULES([yes])=0AAM_COND=
ITIONAL(BUILD_INFO, false)=0AAC_CONFIG_FILES(Makefile)=0AAC_OUTPUT=0A
--FWrEkX/Hryua5GRu
Content-Type: application/x-texinfo
Content-Disposition: attachment; filename="ctf-spec.texi"
Content-Transfer-Encoding: quoted-printable

@setfilename ctf-spec.info=0A@forcedError=0A
--FWrEkX/Hryua5GRu
Content-Type: text/plain; charset=utf-8
Content-Disposition: attachment; filename="Makefile.am"

AUTOMAKE_OPTIONS = foreign info-in-builddir no-texinfo.tex
info_TEXINFOS =
if BUILD_INFO
info_TEXINFOS += ctf-spec.texi
endif

--FWrEkX/Hryua5GRu--

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Mike Frysinger <vapier@HIDDEN>
Subject: bug#52256: Acknowledgement (conditional info pages don't work)
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Message sent to bug-automake@HIDDEN:

Subject: bug#52256: conditional info pages don't work
References: <Yamj/vyEz7fqtDUb@vapier>
Resent-From: Karl Berry <karl@HIDDEN>
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Date: Fri, 3 Dec 2021 15:54:06 -0700
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    unfortunately, automake doesn't seem to handle this situation correctly.

Not surprising.

    ctf-spec.texi:2: unknown command `forcedError'

Maybe you would like to look into it? It's not like I have any special
knowledge here.  At least the error message could be improved, if it
turns out not to be feasible to make it work.

    +else
    +ctf-spec.info:

Seems like a fine workaround? I guess I could imagine documenting it, if
that's the outcome. --thanks, karl.

Message sent to bug-automake@HIDDEN:

Subject: bug#52256: conditional info pages don't work
Resent-From: Mike Frysinger <vapier@HIDDEN>
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To: Karl Berry <karl@HIDDEN>
Cc: 52256 <at> debbugs.gnu.org
Date: Fri, 3 Dec 2021 22:15:23 -0500
From: Mike Frysinger <vapier@HIDDEN>
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On 03 Dec 2021 15:54, Karl Berry wrote:
>     unfortunately, automake doesn't seem to handle this situation correct=
ly.
>=20
> Not surprising.
>=20
>     ctf-spec.texi:2: unknown command `forcedError'
>=20
> Maybe you would like to look into it? It's not like I have any special
> knowledge here.  At least the error message could be improved, if it
> turns out not to be feasible to make it work.

the error message isn't the point ... i did that just to make it clear the
file was being inspected.  if it was a valid file, there wouldn't be an
error like this.

>     +else
>     +ctf-spec.info:
>=20
> Seems like a fine workaround? I guess I could imagine documenting it, if
> that's the outcome. --thanks, karl.

it's the workaround i pushed in binutils.  if the automake folks want to
document it as a KI with this workaround, that seems like an OK workaround
until someone can figure out how to make it work.
-mike

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severity 52256 wishlist
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severity 52256 wishlist
merge 52256 7655
thankyou

Last modified: Fri, 21 Jan 2022 08:45:01 UTC

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