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# Try to find the MPIR libraries
# See http://www.mpir.org/
#
# This module supports requiring a minimum version, e.g. you can do
# find_package(MPIR 3.0.0)
# to require version 3.0.0 to newer of MPIR.
#
# Once done this will define
#
# MPIR_FOUND - system has MPIR lib
# MPIR_INCLUDE_DIRS - the MPIR include directory
# MPIR_LIBRARIES - Libraries needed to use MPIR
# MPIR_VERSION - MPIR version
# Copyright (c) 2020, Mahrud Sayrafi, <mahrud@umn.edu>
# Redistribution and use is allowed according to the terms of the BSD license.
# Set MPIR_FIND_VERSION to 1.0.0 if no minimum version is specified
if(NOT MPIR_FIND_VERSION)
if(NOT MPIR_FIND_VERSION_MAJOR)
set(MPIR_FIND_VERSION_MAJOR 1)
endif()
if(NOT MPIR_FIND_VERSION_MINOR)
set(MPIR_FIND_VERSION_MINOR 0)
endif()
if(NOT MPIR_FIND_VERSION_PATCH)
set(MPIR_FIND_VERSION_PATCH 0)
endif()
set(MPIR_FIND_VERSION
"${MPIR_FIND_VERSION_MAJOR}.${MPIR_FIND_VERSION_MINOR}.${MPIR_FIND_VERSION_PATCH}")
endif()
macro(_mpir_check_version)
# Query MPIR_VERSION
file(READ "${MPIR_INCLUDE_DIRS}/mpir.h" _mpir_version_header)
string(REGEX MATCH "define[ \t]+__MPIR_VERSION[ \t]+([0-9]+)"
_mpir_major_version_match "${_mpir_version_header}")
set(MPIR_MAJOR_VERSION "${CMAKE_MATCH_1}")
string(REGEX MATCH "define[ \t]+__MPIR_VERSION_MINOR[ \t]+([0-9]+)"
_mpir_minor_version_match "${_mpir_version_header}")
set(MPIR_MINOR_VERSION "${CMAKE_MATCH_1}")
string(REGEX MATCH "define[ \t]+__MPIR_VERSION_PATCHLEVEL[ \t]+([0-9]+)"
_mpir_patchlevel_version_match "${_mpir_version_header}")
set(MPIR_PATCHLEVEL_VERSION "${CMAKE_MATCH_1}")
set(MPIR_VERSION
${MPIR_MAJOR_VERSION}.${MPIR_MINOR_VERSION}.${MPIR_PATCHLEVEL_VERSION})
# Check whether found version exceeds minimum required
if(${MPIR_VERSION} VERSION_LESS ${MPIR_FIND_VERSION})
set(MPIR_VERSION_OK FALSE)
message(STATUS "MPIR version ${MPIR_VERSION} found in ${MPIR_INCLUDE_DIRS}, "
"but at least version ${MPIR_FIND_VERSION} is required")
else()
set(MPIR_VERSION_OK TRUE)
endif()
endmacro(_mpir_check_version)
if(NOT MPIR_VERSION_OK)
set(MPIR_INCLUDE_DIRS NOTFOUND)
set(MPIR_LIBRARIES NOTFOUND)
set(MPIRXX_LIBRARIES NOTFOUND)
# search first if an MPIRConfig.cmake is available in the system,
# if successful this would set MPIR_INCLUDE_DIRS and the rest of
# the script will work as usual
find_package(MPIR ${MPIR_FIND_VERSION} NO_MODULE QUIET)
if(NOT MPIR_INCLUDE_DIRS)
find_path(MPIR_INCLUDE_DIRS NAMES mpir.h
HINTS ENV MPIRDIR ENV GMPDIR
PATHS ${INCLUDE_INSTALL_DIR} ${CMAKE_INSTALL_PREFIX}/include)
endif()
if(MPIR_INCLUDE_DIRS)
_MPIR_check_version()
endif()
if(NOT MPIR_LIBRARIES)
find_library(MPIR_LIBRARIES NAMES mpir
HINTS ENV MPIRDIR ENV GMPDIR
PATHS ${LIB_INSTALL_DIR} ${CMAKE_INSTALL_PREFIX}/lib)
find_library(MPIRXX_LIBRARIES NAMES mpirxx
HINTS ENV MPIRDIR ENV GMPDIR
PATHS ${LIB_INSTALL_DIR} ${CMAKE_INSTALL_PREFIX}/lib)
set(MPIR_LIBRARIES ${MPIRXX_LIBRARIES} ${MPIR_LIBRARIES})
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(MPIR DEFAULT_MSG MPIR_INCLUDE_DIRS MPIR_LIBRARIES MPIR_VERSION_OK)
mark_as_advanced(MPIR_INCLUDE_DIRS MPIR_LIBRARIES)
endif()
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