On Tue, Jun 15, 2021 at 06:20:52AM -0400, Pierre-Marie de Rodat wrote:
> When performing a bootstrap with Ada, we are currently using the runtime
> files from the repository during stage1, causing some subtle
> inconsistencies during stage1 of the bootstrap, sometimes hard to
> workaround. This change now uses the runtime from the base compiler
> during stage1 only. We still rely on a few more recent runtime services,
> so we have to copy some files from libgnat to <object dir>/gcc/ada in
> the process.
>
> Tested on x86_64-pc-linux-gnu, committed on trunk
>
> gcc/ada/
>
> * Make-generated.in: Add rule to copy runtime files needed
> during stage1.
> * raise.c: Remove obsolete symbols used during bootstrap.
> * gcc-interface/Make-lang.in: Do not use libgnat sources during
> stage1.
> (GNAT_ADA_OBJS, GNATBIND_OBJS): Split in two parts, the common
> part and the part only used outside of stage1.
> (ADA_GENERATED_FILES): Add runtime files needed during bootstrap
> when recent APIs are needed.
> (ada/b_gnatb.adb): Remove prerequisite.
> * gcc-interface/system.ads: Remove obsolete entries.
This breaks bootstrap on Fedora, where usually only libgnat.so* and not
libgnat.a is installed (one needs to install libgnat-static for it to be
present).
Shouldn't it instead just add
-L $(dir $(shell $(CC) -print-libgcc-file-name))adalib/ -lgnat
instead of forcing to always link against libgnat.a?
Or at least test whether libgnat.a is present and otherwise use the above.
Jakub
