[Bug libstdc++/105681] libstdc++-v3 fails to build on msp430

mikpelinux at gmail dot com gcc-bugzilla@gcc.gnu.org
Sun May 22 16:05:52 GMT 2022


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105681

Mikael Pettersson <mikpelinux at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikpelinux at gmail dot com

--- Comment #3 from Mikael Pettersson <mikpelinux at gmail dot com> ---
I can reproduce in a cross to --target=msp430-unknown-elf
--enable-languages=c,c++ with binutils-2.38 and newlib-4.2.0.20211231.
gcc-11.3.0 builds fine, but gcc-12.1.0 build fails with

In file included from
/mnt/scratch/cross/sources/gcc-12.1.0/libstdc++-v3/include/precompiled/extc++.h:61:
/mnt/scratch/cross/objdir-gcc/msp430-unknown-elf/libstdc++-v3/include/ext/random:355:69:
error: narrowing conversion of '86243' from 'long int' to 'unsigned int'
[-Wnarrowing]
  355 |                                             0x00000000U, 0xe9528d85U>
      |                                                                     ^
(several more)

and

In file included from
/mnt/scratch/cross/objdir-gcc/msp430-unknown-elf/libstdc++-v3/include/ext/pb_ds/hash_policy.hpp:475,
                 from
/mnt/scratch/cross/objdir-gcc/msp430-unknown-elf/libstdc++-v3/include/ext/pb_ds/detail/standard_policies.hpp:45,
                 from
/mnt/scratch/cross/objdir-gcc/msp430-unknown-elf/libstdc++-v3/include/ext/pb_ds/assoc_container.hpp:47,
                 from
/mnt/scratch/cross/sources/gcc-12.1.0/libstdc++-v3/include/precompiled/extc++.h:72:
/mnt/scratch/cross/objdir-gcc/msp430-unknown-elf/libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp:73:32:
error: narrowing conversion of '116731' from 'long unsigned int' to
'std::size_t' {aka 'unsigned int'} [-Wnarrowing]
   73 |       /* 14    */              116731ul,
      |                                ^~~~~~~~
(many more)


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