Re: [PATCH] build: fix race in parallel builds

[Mike Frysinger]

On 18 Jan 2022 04:53, Mike Frysinger wrote:
> As reported by Hongxu Jia:
> > The automake-$(APIVERSION) is a hardlink of automake, if it is
> > created later than update_mans executing, there is a failure
> > [snip]
> > |: && mkdir -p doc && ./pre-inst-env /usr/bin/env perl 
> > ../automake-1.16.1/doc/help2man --output=doc/aclocal-1.16.1 aclocal-1.16
> > |help2man: can't get `--help' info from aclocal-1.16
> > |Try `--no-discard-stderr' if option outputs to stderr
> > Makefile:3693: recipe for target 'doc/aclocal-1.16.1' failed
> > [snip]
> >
> > The automake_script is required by update_mans and update_mans
> > invokes automake-$(APIVERSION) rather than automake to generate
> > doc, so we should assign `automake-$(APIVERSION)' to automake_script.
> >
> > The same reason to tweak aclocal_script.
> 
> However, rather than update the _script variables to point to the
> hardlinked copies of the programs, we can have the help2man steps
> run the existing scripts directly.  This makes the relationship a
> bit more explicit and avoids implicit dependencies on names.
> 
> * doc/local.mk: Pass $(aclocal_script) and $(automake_script) to 
> $(update_mans).

i've pushed this now, and with updated THANKS:
Hongxu Jia                      hongxu.jia@windriver.com

let me know if you prefer a different writing of your name, or a different
e-mail address.  it doesn't have to be pinyin/romanized if you don't want.
-mike

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