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RPATH Fix for portable_lib Python Extension #14442

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Merged
merged 1 commit into from
Sep 23, 2025
Merged

RPATH Fix for portable_lib Python Extension #14442

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12 changes: 12 additions & 0 deletions .ci/scripts/wheel/test_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,18 @@ class ModelTest:


def run_tests(model_tests: List[ModelTest]) -> None:
# Test that we can import the portable_lib module - verifies RPATH is correct
print("Testing portable_lib import...")
try:
from executorch.extension.pybindings._portable_lib import ( # noqa: F401
_load_for_executorch,
)

print("✓ Successfully imported _load_for_executorch from portable_lib")
except ImportError as e:
print(f"✗ Failed to import portable_lib: {e}")
raise

# Why are we doing this envvar shenanigans? Since we build the testers, which
# uses buck, we cannot run as root. This is a sneaky of getting around that
# test.
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15 changes: 15 additions & 0 deletions CMakeLists.txt
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Expand Up @@ -869,6 +869,21 @@ if(EXECUTORCH_BUILD_PYBIND)
target_compile_options(portable_lib PUBLIC ${_pybind_compile_options})
target_link_libraries(portable_lib PRIVATE ${_dep_libs})

# Set RPATH to find PyTorch libraries relative to the installation location
# This goes from executorch/extension/pybindings up to site-packages, then to
# torch/lib
if(APPLE)
set_target_properties(
portable_lib PROPERTIES BUILD_RPATH "@loader_path/../../../torch/lib"
INSTALL_RPATH "@loader_path/../../../torch/lib"
)
else()
set_target_properties(
portable_lib PROPERTIES BUILD_RPATH "$ORIGIN/../../../torch/lib"
INSTALL_RPATH "$ORIGIN/../../../torch/lib"
)
endif()

install(
TARGETS portable_lib
EXPORT ExecuTorchTargets
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