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[CMake] Add CMAKE_INSTALL_PYTHON_PKG_DIR option to control where python

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bindings are installed.
This commit is contained in:
Dan Liew 2016-03-18 20:53:29 +00:00
parent f951372f03
commit 8746cc4a14
2 changed files with 38 additions and 22 deletions
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1
README-CMake.md
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@ -265,6 +265,7 @@ The following useful options can be passed to CMake whilst configuring.
* ``CMAKE_INSTALL_INCLUDEDIR`` - STRING. The path to install z3 include files (relative to ``CMAKE_INSTALL_PREFIX``), e.g. ``include``.
* ``CMAKE_INSTALL_LIBDIR`` - STRING. The path to install z3 libraries (relative to ``CMAKE_INSTALL_PREFIX``), e.g. ``lib``.
* ``CMAKE_INSTALL_PREFIX`` - STRING. The install prefix to use (e.g. ``/usr/local/``).
* ``CMAKE_INSTALL_PYTHON_PKG_DIR`` - STRING. The path to install the z3 python bindings. This can be relative (to ``CMAKE_INSTALL_PREFIX``) or absolute.
* ``ENABLE_TRACING`` - BOOL. If set to ``TRUE`` enable tracing, if set to ``FALSE`` disable tracing.
* ``BUILD_LIBZ3_SHARED`` - BOOL. If set to ``TRUE`` build libz3 as a shared library otherwise build as a static library.
* ``ENABLE_EXAMPLE_TARGETS`` - BOOL. If set to ``TRUE`` add the build targets for building the API examples.

39
contrib/cmake/src/api/python/CMakeLists.txt
View file

@ -74,35 +74,50 @@ add_custom_target(build_z3_python_bindings
###############################################################################
option(INSTALL_PYTHON_BINDINGS "Install Python bindings when invoking install target" ON)
if (INSTALL_PYTHON_BINDINGS)
# Determine the installation path for the bindings
message(STATUS "Emitting rules to install Z3 python bindings")
# Try to guess the installation path for the bindings
if (NOT DEFINED CMAKE_INSTALL_PYTHON_PKG_DIR)
message(STATUS "CMAKE_INSTALL_PYTHON_PKG_DIR not set. Trying to guess")
execute_process(
COMMAND "${PYTHON_EXECUTABLE}" "-c"
"import distutils.sysconfig; print(distutils.sysconfig.get_python_lib())"
RESULT_VARIABLE exit_code
OUTPUT_VARIABLE python_pkg_dir
OUTPUT_VARIABLE CMAKE_INSTALL_PYTHON_PKG_DIR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if (NOT ("${exit_code}" EQUAL 0))
message(FATAL_ERROR "Failed to determine your Python package directory")
endif()
message(STATUS "Detected Python package directory: \"${python_pkg_dir}\"")
message(STATUS "Detected Python package directory: \"${CMAKE_INSTALL_PYTHON_PKG_DIR}\"")
# Set a cache variable that the user can modify if needed
set(CMAKE_INSTALL_PYTHON_PKG_DIR
"${CMAKE_INSTALL_PYTHON_PKG_DIR}"
CACHE PATH
"Path to install python bindings. This can be relative or absolute.")
mark_as_advanced(CMAKE_INSTALL_PYTHON_PKG_DIR)
else()
message(STATUS "CMAKE_INSTALL_PYTHON_PKG_DIR already set (\"${CMAKE_INSTALL_PYTHON_PKG_DIR}\")"
". Not trying to guess.")
endif()
# Check if path exists under the install prefix
set(python_install_dir "")
string(FIND "${python_pkg_dir}" "${CMAKE_INSTALL_PREFIX}" position)
# Check if path exists under the install prefix if it is absolute. If the
# path is relative it will be installed under the install prefix so there
# if nothing to check
if (IS_ABSOLUTE "${CMAKE_INSTALL_PYTHON_PKG_DIR}")
string(FIND "${CMAKE_INSTALL_PYTHON_PKG_DIR}" "${CMAKE_INSTALL_PREFIX}" position)
if (NOT ("${position}" EQUAL 0))
message(WARNING "The detected Python package directory \"${python_pkg_dir}\" "
"does not exist under the install prefix \"${CMAKE_INSTALL_PREFIX}\"."
" Running the install target may lead to a broken installation."
message(WARNING "The directory to install the python bindings \"${CMAKE_INSTALL_PYTHON_PKG_DIR}\" "
"is not under the install prefix \"${CMAKE_INSTALL_PREFIX}\"."
" Running the install target may lead to a broken installation. "
"To change the install directory modify the CMAKE_INSTALL_PYTHON_PKG_DIR cache variable."
)
endif()
endif()
# Using DESTDIR still seems to work even if we use an absolute path
set(python_install_dir "${python_pkg_dir}")
message(STATUS "Python bindings will be installed to \"${python_install_dir}\"")
message(STATUS "Python bindings will be installed to \"${CMAKE_INSTALL_PYTHON_PKG_DIR}\"")
install(FILES ${build_z3_python_bindings_target_depends}
DESTINATION "${python_install_dir}"
DESTINATION "${CMAKE_INSTALL_PYTHON_PKG_DIR}"
)
else()
message(STATUS "Not emitting rules to install Z3 python bindings")