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Summary: We use the `major.minor.build` version format in this file, except when we try to parse the result of the test binary. In that regular expression, we expect the `major.minor.build.rev` format, which is never fulfilled. Reviewers: NoQ, george.karpenkov, alexandre.isoard, serge-sans-paille Reviewed By: NoQ Subscribers: mgorny, mikhail.ramalho, Charusso, martong, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D76837
111 lines
3.7 KiB
CMake
111 lines
3.7 KiB
CMake
INCLUDE(CheckCXXSourceRuns)
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# Function to check Z3's version
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function(check_z3_version z3_include z3_lib)
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# The program that will be executed to print Z3's version.
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file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testz3.c
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"#include <assert.h>
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#include <z3.h>
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int main() {
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unsigned int major, minor, build, rev;
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Z3_get_version(&major, &minor, &build, &rev);
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printf(\"%u.%u.%u\", major, minor, build);
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return 0;
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}")
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# Get lib path
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get_filename_component(z3_lib_path ${z3_lib} PATH)
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try_run(
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Z3_RETURNCODE
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Z3_COMPILED
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${CMAKE_BINARY_DIR}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testz3.c
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COMPILE_DEFINITIONS -I"${z3_include}"
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LINK_LIBRARIES -L${z3_lib_path} -lz3
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RUN_OUTPUT_VARIABLE SRC_OUTPUT
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)
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if(Z3_COMPILED)
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string(REGEX REPLACE "([0-9]*\\.[0-9]*\\.[0-9]*)" "\\1"
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z3_version "${SRC_OUTPUT}")
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set(Z3_VERSION_STRING ${z3_version} PARENT_SCOPE)
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endif()
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endfunction(check_z3_version)
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# Looking for Z3 in LLVM_Z3_INSTALL_DIR
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find_path(Z3_INCLUDE_DIR NAMES z3.h
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NO_DEFAULT_PATH
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PATHS ${LLVM_Z3_INSTALL_DIR}/include
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PATH_SUFFIXES libz3 z3
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)
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find_library(Z3_LIBRARIES NAMES z3 libz3
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NO_DEFAULT_PATH
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PATHS ${LLVM_Z3_INSTALL_DIR}
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PATH_SUFFIXES lib bin
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)
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# If Z3 has not been found in LLVM_Z3_INSTALL_DIR look in the default directories
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find_path(Z3_INCLUDE_DIR NAMES z3.h
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PATH_SUFFIXES libz3 z3
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)
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find_library(Z3_LIBRARIES NAMES z3 libz3
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PATH_SUFFIXES lib bin
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)
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# Searching for the version of the Z3 library is a best-effort task
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unset(Z3_VERSION_STRING)
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# First, try to check it dynamically, by compiling a small program that
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# prints Z3's version
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if(Z3_INCLUDE_DIR AND Z3_LIBRARIES)
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# We do not have the Z3 binary to query for a version. Try to use
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# a small C++ program to detect it via the Z3_get_version() API call.
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check_z3_version(${Z3_INCLUDE_DIR} ${Z3_LIBRARIES})
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endif()
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# If the dynamic check fails, we might be cross compiling: if that's the case,
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# check the version in the headers, otherwise, fail with a message
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if(NOT Z3_VERSION_STRING AND (CMAKE_CROSSCOMPILING AND
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Z3_INCLUDE_DIR AND
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EXISTS "${Z3_INCLUDE_DIR}/z3_version.h"))
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# TODO: print message warning that we couldn't find a compatible lib?
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# Z3 4.8.1+ has the version is in a public header.
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file(STRINGS "${Z3_INCLUDE_DIR}/z3_version.h"
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z3_version_str REGEX "^#define[\t ]+Z3_MAJOR_VERSION[\t ]+.*")
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string(REGEX REPLACE "^.*Z3_MAJOR_VERSION[\t ]+([0-9]).*$" "\\1"
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Z3_MAJOR "${z3_version_str}")
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file(STRINGS "${Z3_INCLUDE_DIR}/z3_version.h"
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z3_version_str REGEX "^#define[\t ]+Z3_MINOR_VERSION[\t ]+.*")
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string(REGEX REPLACE "^.*Z3_MINOR_VERSION[\t ]+([0-9]).*$" "\\1"
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Z3_MINOR "${z3_version_str}")
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file(STRINGS "${Z3_INCLUDE_DIR}/z3_version.h"
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z3_version_str REGEX "^#define[\t ]+Z3_BUILD_NUMBER[\t ]+.*")
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string(REGEX REPLACE "^.*Z3_BUILD_VERSION[\t ]+([0-9]).*$" "\\1"
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Z3_BUILD "${z3_version_str}")
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set(Z3_VERSION_STRING ${Z3_MAJOR}.${Z3_MINOR}.${Z3_BUILD})
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unset(z3_version_str)
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endif()
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if(NOT Z3_VERSION_STRING)
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# Give up: we are unable to obtain a version of the Z3 library. Be
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# conservative and force the found version to 0.0.0 to make version
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# checks always fail.
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set(Z3_VERSION_STRING "0.0.0")
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endif()
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# handle the QUIETLY and REQUIRED arguments and set Z3_FOUND to TRUE if
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# all listed variables are TRUE
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include(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(Z3
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REQUIRED_VARS Z3_LIBRARIES Z3_INCLUDE_DIR
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VERSION_VAR Z3_VERSION_STRING)
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mark_as_advanced(Z3_INCLUDE_DIR Z3_LIBRARIES)
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