[
  {
    "package": "RcppParallel",
    "versions": "*",
    "platforms": [
      "alpine",
      "ubuntu",
      "redhat"
    ],
    "env": {},
    "configure_args": [],
    "makevars": {},
    "patch": "RcppParallel/system-tbb.patch",
    "reason": "RcppParallel bundles an old Intel TBB whose build fails on musl and modern toolchains (g++ 8-15 + modern make); link the system oneTBB (2021+) instead, keeping the TBB backend so dependents (rstan, ...) link TBB. All build-env platforms now provide oneTBB 2021+: native on alpine/ubuntu/el10, built from source into /usr/local on el8/el9 (their stock TBB is classic 2018/2020, too old)."
  },
  {
    "package": "fs",
    "versions": "*",
    "platforms": [
      "*"
    ],
    "env": {},
    "configure_args": [],
    "makevars": {},
    "patch": "fs/force-vendored-libuv.patch",
    "reason": "fs 2.x configure links system libuv whenever pkg-config finds libuv-devel (installed as a build-time sysreq), producing an fs.so with NEEDED libuv.so.1. That binary fails to dyn.load on consumer machines lacking runtime libuv, because install.packages/renv do not install SystemRequirements (only pak does, and only in the build container). The patch short-circuits configure to copy src/Makevars.vendor and build the bundled static libuv (needs cmake) so the binary is self-contained on every platform. An env/pkg-config override was tried first but the rebuilt binary still linked libuv.so.1, so a source patch is used instead."
  },
  {
    "package": "rstan",
    "versions": "*",
    "platforms": [
      "*"
    ],
    "env": {},
    "configure_args": [],
    "makevars": {
      "CPPFLAGS": "-DTBB_INTERFACE_NEW -I/usr/local/include"
    },
    "patch": null,
    "reason": "StanHeaders' init_threadpool_tbb.hpp unconditionally includes the legacy <tbb/tbb_stddef.h> (removed in oneTBB 2021+) for version detection, breaking compilation of Module.cpp against the bundled oneTBB. Pre-defining TBB_INTERFACE_NEW skips that include and selects the modern tbb/global_control.h + tbb/task_arena.h path that the bundled TBB provides (-I/usr/local/include preserves the default CPPFLAGS the override replaces)"
  }
]