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Quelle FindMPREAL.cmake
Sprache: unbekannt
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# Try to find the MPFR C++ (MPREAL) library
# See http://www.holoborodko.com/pavel/mpreal/
#
# This module supports requiring a minimum version, e.g. you can do
# find_package(MPREAL 1.8.6)
# to require version 1.8.6 or newer of MPREAL C++.
#
# Once done this will define
#
# MPREAL_FOUND - system has MPREAL lib with correct version
# MPREAL_INCLUDES - MPREAL required include directories
# MPREAL_LIBRARIES - MPREAL required libraries
# MPREAL_VERSION - MPREAL version
# Copyright (c) 2020 The Eigen Authors.
# Redistribution and use is allowed according to the terms of the BSD license.
include(CMakeFindDependencyMacro)
find_dependency(MPFR)
find_dependency(GMP)
# Set MPREAL_INCLUDES
find_path(MPREAL_INCLUDES
NAMES
mpreal.h
PATHS
$ENV{GMPDIR}
${INCLUDE_INSTALL_DIR}
)
# Set MPREAL_FIND_VERSION to 1.0.0 if no minimum version is specified
if(NOT MPREAL_FIND_VERSION)
if(NOT MPREAL_FIND_VERSION_MAJOR)
set(MPREAL_FIND_VERSION_MAJOR 1)
endif()
if(NOT MPREAL_FIND_VERSION_MINOR)
set(MPREAL_FIND_VERSION_MINOR 0)
endif()
if(NOT MPREAL_FIND_VERSION_PATCH)
set(MPREAL_FIND_VERSION_PATCH 0)
endif()
set(MPREAL_FIND_VERSION "${MPREAL_FIND_VERSION_MAJOR}.${MPREAL_FIND_VERSION_MINOR}.${MPREAL_FIND_VERSION_PATCH}")
endif()
# Check bugs
# - https://github.com/advanpix/mpreal/issues/7
# - https://github.com/advanpix/mpreal/issues/9
set(MPREAL_TEST_PROGRAM "
#include <mpreal.h>
#include <algorithm>
int main(int argc, char** argv) {
const mpfr::mpreal one = 1.0;
const mpfr::mpreal zero = 0.0;
using namespace std;
const mpfr::mpreal smaller = min(one, zero);
return 0;
}")
if(MPREAL_INCLUDES)
# Set MPREAL_VERSION
file(READ "${MPREAL_INCLUDES}/mpreal.h" _mpreal_version_header)
string(REGEX MATCH "define[ \t]+MPREAL_VERSION_MAJOR[ \t]+([0-9]+)" _mpreal_major_version_match "${_mpreal_version_header}")
set(MPREAL_MAJOR_VERSION "${CMAKE_MATCH_1}")
string(REGEX MATCH "define[ \t]+MPREAL_VERSION_MINOR[ \t]+([0-9]+)" _mpreal_minor_version_match "${_mpreal_version_header}")
set(MPREAL_MINOR_VERSION "${CMAKE_MATCH_1}")
string(REGEX MATCH "define[ \t]+MPREAL_VERSION_PATCHLEVEL[ \t]+([0-9]+)" _mpreal_patchlevel_version_match "${_mpreal_version_header}")
set(MPREAL_PATCHLEVEL_VERSION "${CMAKE_MATCH_1}")
set(MPREAL_VERSION ${MPREAL_MAJOR_VERSION}.${MPREAL_MINOR_VERSION}.${MPREAL_PATCHLEVEL_VERSION})
# Check whether found version exceeds minimum version
if(${MPREAL_VERSION} VERSION_LESS ${MPREAL_FIND_VERSION})
set(MPREAL_VERSION_OK FALSE)
message(STATUS "MPREAL version ${MPREAL_VERSION} found in ${MPREAL_INCLUDES}, "
"but at least version ${MPREAL_FIND_VERSION} is required")
else()
set(MPREAL_VERSION_OK TRUE)
list(APPEND MPREAL_INCLUDES "${MPFR_INCLUDES}" "${GMP_INCLUDES}")
list(REMOVE_DUPLICATES MPREAL_INCLUDES)
list(APPEND MPREAL_LIBRARIES "${MPFR_LIBRARIES}" "${GMP_LIBRARIES}")
list(REMOVE_DUPLICATES MPREAL_LIBRARIES)
# Make sure it compiles with the current compiler.
unset(MPREAL_WORKS CACHE)
include(CheckCXXSourceCompiles)
set(CMAKE_REQUIRED_INCLUDES "${MPREAL_INCLUDES}")
set(CMAKE_REQUIRED_LIBRARIES "${MPREAL_LIBRARIES}")
check_cxx_source_compiles("${MPREAL_TEST_PROGRAM}" MPREAL_WORKS)
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(MPREAL DEFAULT_MSG
MPREAL_INCLUDES MPREAL_VERSION_OK MPREAL_WORKS)
mark_as_advanced(MPREAL_INCLUDES)
[ Dauer der Verarbeitung: 0.3 Sekunden
(vorverarbeitet)
]
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2026-03-28
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