From: Jon Turney <jon.turney@dronecode.org.uk>
To: Cygwin Patches <cygwin-patches@cygwin.com>
Subject: Re: [PATCH 3/6] gendef generates sigfe.s and cygwin.def
Date: Tue, 27 Oct 2020 16:09:11 +0000 [thread overview]
Message-ID: <7ca5d881-a751-8152-9315-b28187136d4e@dronecode.org.uk> (raw)
In-Reply-To: <fe4bf082-427b-9611-39a5-8d50a79ba9f1@dronecode.org.uk>
On 21/10/2020 15:31, Jon Turney wrote:
> On 20/10/2020 14:43, Jon Turney wrote:
>> Express that gendef generates sigfe.s and cygwin.def in a slightly less
>> nutty way.
>> ---
>> winsup/cygwin/Makefile.in | 5 +----
>> 1 file changed, 1 insertion(+), 4 deletions(-)
>>
>> diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in
>> index a56a311b8..9d05b17b3 100644
>> --- a/winsup/cygwin/Makefile.in
>> +++ b/winsup/cygwin/Makefile.in
>> @@ -785,16 +785,13 @@ $(VERSION_OFILES): version.cc
>> Makefile: ${srcdir}/Makefile.in
>> /bin/sh ./config.status
>> -$(DEF_FILE): gendef $(srcdir)/$(TLSOFFSETS_H) $(DIN_FILE)
>> +$(DEF_FILE) sigfe.s: gendef $(srcdir)/$(TLSOFFSETS_H) $(DIN_FILE)
>> $(word 1,$^) --cpu=${target_cpu} --output-def=$@
>> --tlsoffsets=$(word 2,$^) $(wordlist 3,99,$^)
>
> Using $@ is wrong if make decides to build sigfe.s first, and $^ will
> contain an unwanted $(DEF_FILE) from the dependency below.
>
> So please try the attached instead.
>
> But maybe I need to do a bit more staring at [1].
>
> [1]
> https://www.gnu.org/software/automake/manual/html_node/Multiple-Outputs.html
>
Notwithstanding that, this formulation doesn't actually seem to avoid
invoking the rule twice in a parallel build, so I think I need to revert
this.
next prev parent reply other threads:[~2020-10-27 16:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-20 13:42 [PATCH 0/6] More Makefile/configure cleanups Jon Turney
2020-10-20 13:42 ` [PATCH 1/6] Remove lsaauth Jon Turney
2020-10-20 13:43 ` [PATCH 2/6] Drop cygwin version.o from cygserver Jon Turney
2020-10-20 13:43 ` [PATCH 3/6] gendef generates sigfe.s and cygwin.def Jon Turney
2020-10-21 14:31 ` Jon Turney
2020-10-21 15:07 ` Corinna Vinschen
2020-10-23 8:16 ` marco atzeri
2020-10-23 19:53 ` Jon Turney
2020-10-27 16:09 ` Jon Turney [this message]
2020-10-20 13:43 ` [PATCH 4/6] Remove nostdlib Makefile variable Jon Turney
2020-10-20 13:43 ` [PATCH 5/6] Drop do-nothing install_host target Jon Turney
2020-10-20 13:43 ` [PATCH 6/6] Drop do-nothing install_target target Jon Turney
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