[Bug locale/33850] New: [m68k] Generation of locales fails with "symbol `U00000000' has the same encoding as"

[glaubitz at physik dot fu-berlin.de]

https://sourceware.org/bugzilla/show_bug.cgi?id=33850

            Bug ID: 33850
           Summary: [m68k] Generation of locales fails with "symbol
                    `U00000000' has the same encoding as"
           Product: glibc
           Version: 2.42
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: locale
          Assignee: unassigned at sourceware dot org
          Reporter: glaubitz at physik dot fu-berlin.de
  Target Milestone: ---

Recently, the generation of locales started to fail on m68k with the following
error messages during build:

aa_DJ.ISO-8859-1aa_DJ.UTF-8......charmaps/UTF-8:55366: unknown character `'
 done
aa_ER.UTF-8...charmaps/UTF-8:55366: unknown character `'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:63593: [error] symbol
`U00000AE9'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:64578: [error] symbol
`U0001D58A'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:65646: [error] symbol
`U0001D66D'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:66592: [error] symbol
`U0000019C'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:77852: [error] symbol
`U00003335'
[error] no output file produced because errors were issued
make[3]: *** [Makefile:573: install-files-aa_DJ.UTF-8/UTF-8] Error 4
make[3]: *** Waiting for unfinished jobs....
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:63593: [error] symbol
`U00000AE9'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:64578: [error] symbol
`U0001D58A'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:65646: [error] symbol
`U0001D66D'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:66592: [error] symbol
`U0000019C'
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:54835: [error] symbol
`U00000000' has the same encoding as
/<<PKGBUILDDIR>>/localedata/locales/iso14651_t1_common:77852: [error] symbol
`U00003335'
[error] no output file produced because errors were issued
make[3]: *** [Makefile:573: install-files-aa_ER/UTF-8] Error 4
make[3]: Leaving directory '/<<PKGBUILDDIR>>/localedata'
make[2]: *** [Makefile:784: localedata/install-locale-files] Error 2
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
make[1]: *** [Makefile:20: localedata/install-locale-files] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>/build-tree/m68k-libc'

Full build log available here:
https://buildd.debian.org/status/fetch.php?pkg=glibc&arch=m68k&ver=2.42-11&stamp=1769494489&raw=0

Looking at the build history
(https://buildd.debian.org/status/logs.php?pkg=glibc&arch=m68k) and the
changelog of the Debian package
(https://metadata.ftp-master.debian.org/changelogs/main/g/glibc/glibc_2.42-11_changelog),
the issue started to arise between 06 December 2025 (Debian version 2.42-5) and
12 December 2025 (Debian version 2.42-6).

It can also be related to building glibc with gcc-15 which has become the
default compiler with Debian version 2.42-6. I'll verify that.

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