Dynamic soname discovery (no execve)

• Type: feature
• Status: backlog
• Owner: —
• Opened: 2026-06-06 (from todo.md §2c Pillar 1 remainder)

Motivation

Library names currently map to versioned sonames via a hardcoded table (libc/libm/libpthread/libdl/librt/libz/GTK/sqlite3); unmapped names fall back to lib<name>.so. The self-hosted compiler has no execve, so pkg-config / ldconfig shelling is impossible.

Scope

Probe the soname by reading the host directly via file I/O:

• Parse /etc/ld.so.cache, or
• Read DT_SONAME from candidate .so ELF files.

Resolve an unmapped external 'name' / header library to its real versioned soname without a hardcoded entry.

Acceptance

A library not in the static table links against its correct versioned soname, verified on a normal Linux host. Hardcoded table remains the fallback.

Log

• 2026-06-06 — ticket opened from todo.md §2c.