fix broken conditional variant default for icu4c causing solver hang#1600
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becker33 merged 1 commit intospack:developfrom Sep 22, 2025
Merged
fix broken conditional variant default for icu4c causing solver hang#1600becker33 merged 1 commit intospack:developfrom
becker33 merged 1 commit intospack:developfrom
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becker33
approved these changes
Sep 22, 2025
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Problem
See spack/spack#51245.
icu4cdefines a defaultcxxstdvariant which isn't available for the default version, which leads to a solver hang in confusing ways. See:Solution
For right now, it would be good to fix the immediate solver hang, but I have prescribed some additional follow-up work in spack/spack#51245 (comment).
Result