feat(pkgs): add gnat16 (Ada) + guile-json#15
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- gnat16 16.1.0 — GNAT (GCC 16 Ada) compiler. Installed via lib.lowPrio: GNAT is a wrapped GCC and ships gcc/cpp/cc/g++, which collide with the existing `gcc` in the system buildEnv. lowPrio makes gcc win the shared files while gnat/gnatmake/gnatbind/gnatchop/gnatlink still link. - guile-json 4.7.3 — JSON reader/writer library for Guile. Both are on stable 26.05. PRD §11.3 and TODO development.nix synced. Verified: system.path builds with no collision; bin/gcc -> gcc-wrapper-15.2.0, bin/gnat -> gnat-16.1.0. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Adds two packages to
modules/packages/development.nix(both present on stable 26.05):gnat16(16.1.0) — GNAT (GCC 16) Ada compiler.guile-json(4.7.3) — JSON reader/writer library for Guile.Collision handling
gnat16is a wrapped GCC and shipsgcc/cpp/cc/g++, which collide with the existinggccin the systembuildEnv. Installed vialib.lowPrio gnat16sogccwins the shared files; GNAT's unique bins (gnat,gnatmake,gnatbind,gnatchop,gnatlink) still link.Verification
nix-instantiate --parseon the module — OK.gnat-wrapper-16.1.0,guile-json-4.7.3).system.pathbuilds clean (no collision);bin/gcc → gcc-wrapper-15.2.0,bin/gnat → gnat-16.1.0.Docs synced:
PRD.md§11.3,TODO.mddevelopment.nix checklist.🤖 Generated with Claude Code