Build libunwind 1.8.3 as a static library before jemalloc, then configure jemalloc with --enable-prof --enable-prof-libunwind so the static libjemalloc.a can dump heap profiles with accurate stack traces. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Sd7pBDVxQENBX1CP2z6Lip