Error: invalid attempt to declare external version name as default in symbol `crypt_gensalt@@XCRYPT_2.0'

[FaberFlorian]

Setup:

• gcc 15.2.1 20260214,
• binutils 2.46.0,
• libxcrypt 4.5.2,
• cross-compilation arm/armhf

Builds fail with

/tmp/ccizgB1I.s: Error: invalid attempt to declare external version name as default in symbol `crypt_gensalt@@XCRYPT_2.0'
make[8]: *** [/tmp/ccYJjjLM.mk:2: /tmp/cc1OXNxc.ltrans0.ltrans.o] Error 1
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.

with LTO enabled.