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Check if likely-to-be-used Numpy include directory is from virtual env #197

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Aug 24, 2023
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Check if likely-to-be-used Numpy include directory is from virtual env #197

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14 changes: 14 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -22,4 +22,18 @@ message(STATUS "F2PY headers included from: ${F2PY_INCLUDE_DIRS}")
message(STATUS "LAPACK: ${LAPACK_LIBRARIES}")
message(STATUS "BLAS: ${BLAS_LIBRARIES}")

# https://github.com/python-control/Slycot/issues/193
if((EXISTS "${Python_INCLUDE_DIRS}/numpy")
AND (NOT ("${Python_INCLUDE_DIRS}/numpy" EQUAL "${Python_NumPy_INCLUDE_DIRS}")))

message(FATAL_ERROR
"Python include directory has a numpy sub-directory,
${Python_INCLUDE_DIRS}/numpy,
which is different from Numpy include directory
${Python_NumPy_INCLUDE_DIRS}.
You're probably building in a virtual environment, in which case
uninstall numpy from the base environment and try again.")

endif()

add_subdirectory(slycot)
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