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Cygwin's installation directory is mainly needed to use some programs of it, irrespectively of the target architecture. However, find_path does not consider cygwin with architecture different than the target architecture. This is because cygwin's installation path is retrieved from the registry. WOW64 view is not used by find_path if generating for 32-bit architecture and vice versa, so cygwin is not found then. find_program tries both views, this way a 64-bit cygwin may be used for 32 bit build and vice versa.
22 lines
573 B
CMake
22 lines
573 B
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#.rst:
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# FindCygwin
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# ----------
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#
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# this module looks for Cygwin
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if (WIN32)
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find_program(CYGWIN_INSTALL_PATH
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cygwin.bat
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"C:/Cygwin"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Cygwin\\setup;rootdir]"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Cygnus Solutions\\Cygwin\\mounts v2\\/;native]"
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)
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get_filename_component(CYGWIN_INSTALL_PATH "${CYGWIN_INSTALL_PATH}" DIRECTORY)
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mark_as_advanced(
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CYGWIN_INSTALL_PATH
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)
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endif ()
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