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[CMake] Implement generation of Z3Config.cmake and Z3Target.cmake

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file for the build and install tree.

These files allow users of CMake to use Z3 via a CMake config package.
Clients can do `find_package(Z3 CONFIG)` to get use the package from
their projects.

When generating the files for the install tree we try to generate
the files so that they are relocatable so that it shouldn't matter
if the installed files aren't in the CMAKE_INSTALL_PREFIX when
a user consumes them. As long as the relative locations of the files
aren't changed things should still work.

A new CMake cache variable `CMAKE_INSTALL_Z3_CMAKE_PACKAGE_DIR` has been
added so that the install location of the Z3 CMake package files can be
controlled.

This addresses #915 .
This commit is contained in:
Dan Liew 2017-03-03 19:39:53 +00:00
parent e2933350b2
commit 73614abf37
4 changed files with 110 additions and 0 deletions
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30
contrib/cmake/cmake/Z3Config.cmake.in Normal file
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@ -0,0 +1,30 @@
################################################################################
# @AUTO_GEN_MSG@
#
# This file is intended to be consumed by clients who wish to use Z3 from CMake.
# It can be use by doing `find_package(Z3 config)` from within a
# `CMakeLists.txt` file. If CMake doesn't find this package automatically you
# can give it a hint by passing `-DZ3_DIR=<path>` to the CMake invocation where
# `<path>` is the path to the directory containing this file.
#
# This file was built for the @CONFIG_FILE_TYPE@.
################################################################################
# Exported targets
include("${CMAKE_CURRENT_LIST_DIR}/Z3Targets.cmake")
@PACKAGE_INIT@
# Version information
set(Z3_VERSION_MAJOR @Z3_VERSION_MAJOR@)
set(Z3_VERSION_MINOR @Z3_VERSION_MINOR@)
set(Z3_VERSION_PATCH @Z3_VERSION_PATCH@)
set(Z3_VERSION_TWEAK @Z3_VERSION_TWEAK@)
set(Z3_VERSION_STRING "${Z3_VERSION_MAJOR}.${Z3_VERSION_MINOR}.${Z3_VERSION_PATCH}.${Z3_VERSION_TWEAK}")
# NOTE: We can't use `set_and_check()` here because this a list of paths.
# List of include directories
set(Z3_C_INCLUDE_DIRS @PACKAGE_Z3_FIRST_PACKAGE_INCLUDE_DIR@ @PACKAGE_Z3_SECOND_PACKAGE_INCLUDE_DIR@)
set(Z3_CXX_INCLUDE_DIRS @PACKAGE_Z3_CXX_PACKAGE_INCLUDE_DIR@ ${Z3_C_INCLUDE_DIRS})
# List of libraries to link against
set(Z3_LIBRARIES "z3::libz3")

1
contrib/cmake/src/CMakeLists.txt
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@ -168,6 +168,7 @@ foreach (header ${libz3_public_headers})
endforeach()
install(TARGETS libz3
EXPORT Z3_EXPORTED_TARGETS
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}" # On Windows this installs ``libz3.lib`` which CMake calls the "corresponding import library". Do we want this installed?
RUNTIME DESTINATION "${CMAKE_INSTALL_LIBDIR}" # For Windows. DLLs are runtime targets for CMake