blob: 947a1ce88678ddb4ffd7f49d38ac30e731afb332 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
# 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)
|
