guix: pass `--disable-wchar_t` to non-GUI GCC #36193

pull fanquake wants to merge 3 commits into bitcoin:master from fanquake:guix_disable_wchar changing 7 files +307 −247

fanquake commented at 3:54 PM on September 8, 2026: member

This saves roughly half a megabyte in binary size, in the non-GUI binaries:

The first commit is pulled out of #25573.

guix: split linux toolchain for static builds
Co-authored-by: willcl-ark <will8clark@gmail.com>
9ba5198c0b

depends: patch around Boost Test std::wcrtomb usage

If libstdc++ is built with --disable-wchar_t, test_bitcoin will fail to
compile.

ad71957acd

guix: gcc --disable-wchar_t 72c9f6bb4b
DrahtBot added the label Build system on Sep 8, 2026
DrahtBot commented at 3:54 PM on September 8, 2026: contributor



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For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/36193.



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hebasto commented at 4:12 PM on September 8, 2026: member

pass --disable-wchar_t to non-GUI GCC

Isn't --disable-wchar_t a libstdc++ configure option rather than a GCC one?
DrahtBot added the label CI failed on Sep 8, 2026

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