toolchain/59835: Incompatible prototypes in texinfo, with newer gcc versions

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>Number:         59835
>Category:       toolchain
>Synopsis:       Incompatible prototypes in texinfo, with newer gcc versions
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Dec 14 16:10:00 +0000 2025
>Originator:     lucius
>Release:        11.99.4 commit 2d72cc2 (git mirror)
>Organization:
>Environment:
Linux arch 6.17.9-arch1-1 #1 SMP PREEMPT_DYNAMIC Mon, 24 Nov 2025 15:21:09 +0000 x86_64 GNU/Linux
>Description:
gcc (GCC) 15.2.1 20251112

Running "./build.sh -U -O ../obj -j1 -m riscv -a riscv64 tools", I get those results: https://dpaste.com/D3CJ3C7SQ
>How-To-Repeat:
Running an up-to-date version of Arch and running the command as outlined in the description.
>Fix: