[pybind] Find portable_lib.so in pip package during cmake build

[pytorchbot]

• Rename _portable_lib.cpython-3.<distribution info>.so to _portable_lib.so so it can be found by CMake find_library(). This can be achieved by setting SETUPTOOLS_EXT_SUFFIX.
• Since executorch-config.cmake is also being used to find installed libraries such as executorch.a, xnnpack_backend.a, add a condition to tell if executorch-config.cmake is being used in cmake-out or site-packages.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/6141

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

❌ 14 New Failures, 2 Unrelated Failures

As of commit f556445 with merge base eecf74f ():

NEW FAILURES - The following jobs have failed:

• pull / test-binary-size-linux / linux-job (gh)
  RuntimeError: Command docker exec -t b7f72183dea1511f98587e870cf0effb3691e86a2e2a135a7a6fdd7d1b66e0c4 /exec failed with exit code 2
• pull / test-binary-size-linux-gcc / linux-job (gh)
  RuntimeError: Command docker exec -t 6335fe8be6b4d74260cc7752ffd4bcce69e966b3090b596720080ff081d292ed /exec failed with exit code 2
• pull / test-custom-ops-linux (buck2) / linux-job (gh)
  RuntimeError: Command docker exec -t 04adf45fb1638a861e8c8e8430a08af11733f37dc011a5273d028c795c2ec3f2 /exec failed with exit code 2
• pull / test-custom-ops-linux (cmake) / linux-job (gh)
  RuntimeError: Command docker exec -t ade3b83dd5993be55bd4bae95f2f9f9c16339fd935450801dacb4edf28668a34 /exec failed with exit code 2
• pull / test-llama-runner-linux (fp32, cmake, portable) / linux-job (gh)
  RuntimeError: Command docker exec -t 6b589ce938b24cd09b8773f7cc4577bb92564eeae1c85eb4aafdb5bb84485121 /exec failed with exit code 2
• pull / test-llama-runner-linux (fp32, cmake, xnnpack+custom) / linux-job (gh)
  RuntimeError: Command docker exec -t e208f6679908e6667fc62c1808927a7f36d3577d82811203e0f6459c03c2a3fd /exec failed with exit code 2
• pull / test-llama-runner-linux (fp32, cmake, xnnpack+custom+qe) / linux-job (gh)
  RuntimeError: Command docker exec -t 5b7b8c2fac3b8246b882310d793b54699a3b1ebdcbde46765dda639ed38f4547 /exec failed with exit code 2
• pull / test-llama-runner-linux-android (cmake) / linux-job (gh)
  RuntimeError: Command docker exec -t eec5dfceee0599f5cd1992c5c58986a0a60a1170f305663fae2538141455d3b9 /exec failed with exit code 2
• pull / test-llama-runner-qnn-linux (fp32, cmake, qnn) / linux-job (gh)
  RuntimeError: Command docker exec -t 33b57bcfe1ddd11d214f2ccc357b6d756506c6e7a44a9ac51725165eb8ef9891 /exec failed with exit code 2
• pull / test-llava-runner-linux / linux-job (gh)
  RuntimeError: Command docker exec -t bbfd0668c9d647f20246826052a724545ef073b7c677576ecb57d2b37fc778a0 /exec failed with exit code 2
• pull / test-selective-build-linux (cmake) / linux-job (gh)
  RuntimeError: Command docker exec -t 56b4e97bb3953aba2071f081ed67fe1babf845881954b636b2dc6fcee8984051 /exec failed with exit code 2
• pull / unittest / linux / linux-job (gh)
  RuntimeError: Command docker exec -t 55e90082cec42bf764223745d22016ef3a9c65bcc9371be942a7572a620d58f1 /exec failed with exit code 2
• pull / unittest / macos / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 2
• pull / unittest-arm (buck2) / linux-job (gh)
  ../../dev/ops/test_add.py::TestSimpleAdd::test_add2_tosa_BI_4

UNSTABLE - The following jobs failed but were likely due to flakiness present on trunk and has been marked as unstable:

• Build Linux Wheels / pytorch/executorch / upload / manywheel-py3_9-cpu (gh) (#4308)
  ##[error]Unable to find any artifacts for the associated workflow
• Build M1 Wheels / pytorch/executorch / upload / wheel-py3_9-cpu (gh) (#4309)
  ##[error]Unable to find any artifacts for the associated workflow

This comment was automatically generated by Dr. CI and updates every 15 minutes.