Commit: Update libiberty

[Simon Marchi]

On 2026-01-07 06:32, Nick Clifton wrote:
> Hi Guys,
> 
>   I am applying the patch below to synchronize our copy of the libiberty
>   sources with those in the gcc development tree.  This sync brings in
>   the following fixes and updates:
> 
> 2025-11-30  Jose E. Marchesi  <jose.marchesi@oracle.com>
> 
> 	* simple-object-mach-o.c
> 	(simple_object_mach_o_segment): Handle non-LTO sections.
> 
> 2025-11-06  Peter Damianov  <peter0x44@disroot.org>
> 
> 	PR target/122472
> 	* simple-object-coff.c (struct external_filehdr_bigobj): New
> 	structure for BigObj file header.
> 	(bigobj_magic): New constant for BigObj magic bytes.
> 	(struct external_syment_bigobj): New structure for BigObj
> 	20-byte symbol table entries.
> 	(union external_auxent_bigobj): New union for BigObj 20-byte
> 	auxiliary symbol entries.
> 	(struct simple_object_coff_read): Add is_bigobj flag and make
> 	nscns 32-bit to support both formats.
> 	(struct simple_object_coff_attributes): Add is_bigobj flag.
> 	(simple_object_coff_match): Add BigObj format detection.
> 	(simple_object_coff_read_strtab): Use format-specific symbol
> 	size when calculating string table offset.
> 	(simple_object_coff_attributes_merge): Check is_bigobj flag.
> 	(simple_object_coff_write_filehdr_bigobj): New function.
> 	(simple_object_coff_write_to_file): Add logic for writing
> 	BigObj vs regular COFF format with appropriate symbol
> 	and auxiliary entry structures.
> 
> 2025-08-17  Nathaniel Shead  <nathanieloshead@gmail.com>
> 
> 	PR c++/120503
> 	PR c++/120824
> 	* cp-demangle.c (d_unnamed_enum): New function.
> 	(d_unqualified_name): Call it.
> 	(cplus_demangle_type): Handle unscoped unnamed types
> 	(Ue, Ul, etc.)
> 	(d_count_templates_scopes): Handle unnamed enums.
> 	(d_find_pack): Likewise.
> 	(d_print_comp_inner): Print unnamed enums.
> 	* testsuite/demangle-expected: Add tests.
> 
> Cheers
>   Nick
> 

Hi Nick,

I think this is the cause of the autoregen failure:

https://inbox.sourceware.org/binutils/20260107185435.987604BA2E06@sourceware.org/T/#u

I can reproduce the failure locally:

    $ pwd
    /home/simark/src/binutils-gdb/libiberty
    $ autoreconf -vf
    autoreconf: Entering directory `.'
    autoreconf: configure.ac: not using Gettext
    autoreconf: running: aclocal --force 
    autoreconf: configure.ac: tracing
    configure.ac:161: error: m4_defn: undefined macro: GCC_AC_FUNC_MMAP
    ../config/no-executables.m4:21: GCC_NO_EXECUTABLES is expanded from...
    configure.ac:161: the top level
    autom4te: /usr/bin/m4 failed with exit status: 1
    autoreconf: configure.ac: not using Libtool
    autoreconf: running: /opt/autostuff/2.69/bin/autoconf --force
    configure.ac:161: error: m4_defn: undefined macro: GCC_AC_FUNC_MMAP
    ../config/no-executables.m4:21: GCC_NO_EXECUTABLES is expanded from...
    configure.ac:161: the top level
    autom4te: /usr/bin/m4 failed with exit status: 1
    autoreconf: /opt/autostuff/2.69/bin/autoconf failed with exit status: 1

Simon