Fwd: libgfortran building reliability corner case

[Andrew Pinski]

Forwarding to the fortran so fortran people will see it.

-- Pinski

Begin forwarded message:

> From: Mike Stump <mrs@apple.com>
> Date: October 15, 2005 1:05:10 PM EDT
> To: GCC Patches <gcc-patches@gcc.gnu.org>
> Subject: libgfortran building reliability corner case
>
> If things go incredibly wrong and the command fails, we wind up with 
> up-to-date targets that are just wrong.  This fixes it so they are 
> removed, so that the next build will `just work' once the problem that 
> cause them to fail is fixed.  An example might be mostly out of disk 
> space.
>
>     * Makefile.am (kinds.h): Remove target, if command fails.
>     (selected_int_kind.inc): Likewise.
>     (selected_real_kind.inc): Likewise.
>
> Ok?
>
> --- ./libgfortran/Makefile.am.~1~       2005-10-07 09:00:59.000000000 
> -0700
> +++ ./libgfortran/Makefile.am   2005-10-07 10:01:58.000000000 -0700
> @@ -578,7 +578,7 @@ I_M4_DEPS0=$(I_M4_DEPS) m4/iforeach.m4
> I_M4_DEPS1=$(I_M4_DEPS) m4/ifunction.m4
> kinds.h: $(srcdir)/mk-kinds-h.sh
> -       $(SHELL) $(srcdir)/mk-kinds-h.sh '$(FCCOMPILE)' > $@
> +       $(SHELL) $(srcdir)/mk-kinds-h.sh '$(FCCOMPILE)' > $@ || rm $@
> kinds.inc: kinds.h
>         grep '^#' < kinds.h > $@
> @@ -587,10 +587,10 @@ c99_protos.inc: $(srcdir)/c99_protos.h
>         grep '^#' < $(srcdir)/c99_protos.h > $@
> selected_int_kind.inc: $(srcdir)/mk-sik-inc.sh
> -       $(SHELL) $(srcdir)/mk-sik-inc.sh '$(FCCOMPILE)' > $@
> +       $(SHELL) $(srcdir)/mk-sik-inc.sh '$(FCCOMPILE)' > $@ || rm $@
> selected_real_kind.inc: $(srcdir)/mk-srk-inc.sh
> -       $(SHELL) $(srcdir)/mk-srk-inc.sh '$(FCCOMPILE)' > $@
> +       $(SHELL) $(srcdir)/mk-srk-inc.sh '$(FCCOMPILE)' > $@ || rm $@
> ## A 'normal' build shouldn't need to regenerate these
> ## so we only include them in maintainer mode
> --- ./libgfortran/Makefile.in.~1~       2005-10-07 09:00:59.000000000 
> -0700
> +++ ./libgfortran/Makefile.in   2005-10-07 10:02:02.000000000 -0700
> @@ -2685,7 +2685,7 @@ uninstall-am: uninstall-info-am uninstal
> kinds.h: $(srcdir)/mk-kinds-h.sh
> -       $(SHELL) $(srcdir)/mk-kinds-h.sh '$(FCCOMPILE)' > $@
> +       $(SHELL) $(srcdir)/mk-kinds-h.sh '$(FCCOMPILE)' > $@ || rm $@
> kinds.inc: kinds.h
>         grep '^#' < kinds.h > $@
> @@ -2694,10 +2694,10 @@ c99_protos.inc: $(srcdir)/c99_protos.h
>         grep '^#' < $(srcdir)/c99_protos.h > $@
> selected_int_kind.inc: $(srcdir)/mk-sik-inc.sh
> -       $(SHELL) $(srcdir)/mk-sik-inc.sh '$(FCCOMPILE)' > $@
> +       $(SHELL) $(srcdir)/mk-sik-inc.sh '$(FCCOMPILE)' > $@ || rm $@
> selected_real_kind.inc: $(srcdir)/mk-srk-inc.sh
> -       $(SHELL) $(srcdir)/mk-srk-inc.sh '$(FCCOMPILE)' > $@
> +       $(SHELL) $(srcdir)/mk-srk-inc.sh '$(FCCOMPILE)' > $@ || rm $@
> @MAINTAINER_MODE_TRUE@$(i_all_c): m4/all.m4 $(I_M4_DEPS1)
> @MAINTAINER_MODE_TRUE@ m4 -Dfile=$@ -I$(srcdir)/m4 all.m4 > 
> $(srcdir)/$@
> --------------
>