https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103528
Bug ID: 103528
Summary: [12 regression] d21 doesn't build on Solaris
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: d
Assignee: ibuclaw at gdcproject dot org
Reporter: ro at gcc dot gnu.org
Target Milestone: ---
Target: *-*-solaris2.11
The migration to the DMD-based D frontend badly broke Solaris bootstrap on both
sparc and x86. I'm always using GCC 9.1.0 as bootstrap compiler.
* Solaris 11.4/x86 configured to use /bin/as:
stage 1 d21 fails to link:
ld: fatal: library -lgphobos: not found
No wonder, libphobos is disabled on Solaris/x86 when /bin/as is in use.
* Solaris 11.4/x86 configured to use gas:
libphobos doesn't build:
/vol/gcc/src/hg/master/local/libphobos/libdruntime/core/internal/gc/impl/conservative/gc.d:3169:47:
error: undefined identifier 'SIG_BLOCK'
3169 | auto sigmask_rc = pthread_sigmask(SIG_BLOCK, &new_mask,
&old_mask);
|
SIG_BLOCK is used unconditionally, but defined nowhere. It should be in
libphobos/libdruntime/core/sys/posix/signal.d. I'm use a local patch
(attached) to fix that.
* Solaris 11.4/sparc configured to use /bin/as:
cannot compile d21, always like:
d21: error: cannot find source code for runtime library file 'object.d'
d21: note: dmd might not be correctly installed. Run 'dmd -man' for
installation instructions.
d21: note: config file: not found
import path[0] = /vol/gcc/src/hg/master/local/gcc/d
For one, libphobos isn't enabled on Solaris/SPARC by default, so no include
files are installed. On Solaris/x86, I default to a gas-based gcc, so
includes are installed for the bootstrap compiler.
Besides, the message about dmd -man is wrong/misleading for gdc.
After that, I rebuilt gcc 9.1.0 with gas and --enable-libphobos to get an
appropriate bootstrap compiler. However
* Solaris 11.4/sparc configured to use gas:
stage 1 d21 cannot even compile a trivial test program when configuring
libphobos
configure: error: can't compile D sources!
make[2]: *** [Makefile:26643: configure-stage1-target-libphobos] Error 1
so the build stops. I'll report the details separately.
I believe there are several issues here beyond the Solaris problems:
* toplevel configure needs to make certain that the bootstrap gdc can compile
*and link* some trivial D program. Letting the build proceed otherwise leads
to confusing link errors as seen here. gnat can do away without such a test
because there are no gnat without libgnat configurations (either you have a
fully working GNAT or you have none), while the gdc without libphobos
situation is quite common in GCC.
* I suspect it's time to do away without disabling libphobos on Solaris with
/bin/as. I've now successfully bootstrapped master on Solaris 11.3 and 11.4
with such a patch with both as and gas and the testresults are mostly the
same.
Certainly no build failures.
* Likewise, it might be possible to declare Solaris/SPARC as sort of supported
in libphobos. The test results are still worse than on Solaris/x86, but not
fundamentally so.
