On Thu, 22 Sep 2022 22:07:52 +0100
Sergei Trofimovich <sly...@gmail.com> wrote:

> On Fri, 16 Sept 2022 at 19:49, Sergei Trofimovich <sly...@gmail.com> wrote:
> >
> > From: Sergei Trofimovich <siarh...@google.com>
> >
> > i386-builtin-types.inc is included indirectly via i386-builtins.h
> > into 4 files: i386.cc i386-builtins.cc i386-expand.cc i386-features.cc
> >
> > Only i386.cc dependency was present in gcc/config/t-i386 makefile.
> >
> > As a result parallel builds occasionally fail as:
> >
> >     g++ ... -o i386-builtins.o ... 
> > ../../gcc-13-20220911/gcc/config/i386/i386-builtins.cc
> >     In file included from 
> > ../../gcc-13-20220911/gcc/config/i386/i386-builtins.cc:92:
> >     ../../gcc-13-20220911/gcc/config/i386/i386-builtins.h:25:10:
> >      fatal error: i386-builtin-types.inc: No such file or directory
> >        25 | #include "i386-builtin-types.inc"
> >           |          ^~~~~~~~~~~~~~~~~~~~~~~~
> >     compilation terminated.
> >     make[3]: *** [../../gcc-13-20220911/gcc/config/i386/t-i386:54: 
> > i386-builtins.o]
> >       Error 1 shuffle=1663349189
> >
> > gcc/
> >         * config/i386/t-i386: Add build-time dependencies against
> >         i386-builtin-types.inc to i386-builtins.o, i386-expand.o,
> >         i386-features.o.
> > ---
> >  gcc/config/i386/t-i386 | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/gcc/config/i386/t-i386 b/gcc/config/i386/t-i386
> > index 4e2a0efc615..ffdbbdfe8ce 100644
> > --- a/gcc/config/i386/t-i386
> > +++ b/gcc/config/i386/t-i386
> > @@ -62,7 +62,12 @@ i386-features.o: $(srcdir)/config/i386/i386-features.cc
> >         $(COMPILE) $<
> >         $(POSTCOMPILE)
> >
> > +# i386-builtin-types.inc is included into i386-builtins.h.
> > +# Below are direct users of i386-builtins.h:
> >  i386.o: i386-builtin-types.inc
> > +i386-builtins.o: i386-builtin-types.inc
> > +i386-expand.o: i386-builtin-types.inc
> > +i386-features.o: i386-builtin-types.inc
> >
> >  i386-builtin-types.inc: s-i386-bt ; @true
> >  s-i386-bt: $(srcdir)/config/i386/i386-builtin-types.awk \
> > --
> > 2.37.2
> >  
> 
> Is it a reasonable approach? Maybe gcc has an equivalent of automake's
> BUILT_SOURCES to avoid explicit tracking of such dependencies?
> 
> -- 
> Sergei


-- 

  Sergei

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