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Update OpenCVDetectPython.cmake
On my MacOS the output of the sphinx-build binary is the following: Error: Insufficient arguments. Sphinx v1.2b1 Usage: /usr/local/bin/sphinx-build [options] sourcedir outdir [filenames...] ... I have installed sphinx, but without this change HAVE_SPHINX==0 for me, so I can't build docs.
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@ -108,7 +108,7 @@ if(PYTHON_EXECUTABLE)
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OUTPUT_QUIET
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ERROR_VARIABLE SPHINX_OUTPUT
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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if(SPHINX_OUTPUT MATCHES "^Sphinx v([0-9][^ \n]*)")
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if(SPHINX_OUTPUT MATCHES ".*Sphinx v([0-9][^ \n]*)")
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set(SPHINX_VERSION "${CMAKE_MATCH_1}")
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set(HAVE_SPHINX 1)
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message(STATUS "Found Sphinx ${SPHINX_VERSION}: ${SPHINX_BUILD}")
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