The prebuilt iden3 rapidsnark archives are compiled on a glibc >= 2.38 host
(Ubuntu 24.04 / GCC 13), whose headers redirect strtoll/strtoull to the C23
interceptor symbols __isoc23_strtoll / __isoc23_strtoull. When the static
archives (static-rapidsnark feature) are linked on a host with an older glibc
(e.g. glibc 2.35), those symbols are undefined and linking fails:
rust-lld: error: undefined symbol: __isoc23_strtoull
Compile thin forwarders to the classic strtoll/strtoull symbols and link them
via whole-archive so the static path resolves regardless of the host glibc
version. Gated to the static feature on glibc-Linux; the shared library and
all other targets are unaffected.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
