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							83 lines
						
					
					
						
							2.8 KiB
						
					
					
				| # Try to find the MPFR library | |
| # See http://www.mpfr.org/ | |
| # | |
| # This module supports requiring a minimum version, e.g. you can do | |
| #   find_package(MPFR 2.3.0) | |
| # to require version 2.3.0 to newer of MPFR. | |
| # | |
| # Once done this will define | |
| # | |
| #  MPFR_FOUND - system has MPFR lib with correct version | |
| #  MPFR_INCLUDES - the MPFR include directory | |
| #  MPFR_LIBRARIES - the MPFR library | |
| #  MPFR_VERSION - MPFR version | |
|  | |
| # Copyright (c) 2006, 2007 Montel Laurent, <montel@kde.org> | |
| # Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr> | |
| # Copyright (c) 2010 Jitse Niesen, <jitse@maths.leeds.ac.uk> | |
| # Redistribution and use is allowed according to the terms of the BSD license. | |
|  | |
| # Set MPFR_INCLUDES | |
|  | |
| find_path(MPFR_INCLUDES | |
|   NAMES | |
|   mpfr.h | |
|   PATHS | |
|   $ENV{GMPDIR} | |
|   ${INCLUDE_INSTALL_DIR} | |
| ) | |
|  | |
| # Set MPFR_FIND_VERSION to 1.0.0 if no minimum version is specified | |
|  | |
| if(NOT MPFR_FIND_VERSION) | |
|   if(NOT MPFR_FIND_VERSION_MAJOR) | |
|     set(MPFR_FIND_VERSION_MAJOR 1) | |
|   endif(NOT MPFR_FIND_VERSION_MAJOR) | |
|   if(NOT MPFR_FIND_VERSION_MINOR) | |
|     set(MPFR_FIND_VERSION_MINOR 0) | |
|   endif(NOT MPFR_FIND_VERSION_MINOR) | |
|   if(NOT MPFR_FIND_VERSION_PATCH) | |
|     set(MPFR_FIND_VERSION_PATCH 0) | |
|   endif(NOT MPFR_FIND_VERSION_PATCH) | |
|  | |
|   set(MPFR_FIND_VERSION "${MPFR_FIND_VERSION_MAJOR}.${MPFR_FIND_VERSION_MINOR}.${MPFR_FIND_VERSION_PATCH}") | |
| endif(NOT MPFR_FIND_VERSION) | |
|  | |
|  | |
| if(MPFR_INCLUDES) | |
|  | |
|   # Set MPFR_VERSION | |
|    | |
|   file(READ "${MPFR_INCLUDES}/mpfr.h" _mpfr_version_header) | |
|    | |
|   string(REGEX MATCH "define[ \t]+MPFR_VERSION_MAJOR[ \t]+([0-9]+)" _mpfr_major_version_match "${_mpfr_version_header}") | |
|   set(MPFR_MAJOR_VERSION "${CMAKE_MATCH_1}") | |
|   string(REGEX MATCH "define[ \t]+MPFR_VERSION_MINOR[ \t]+([0-9]+)" _mpfr_minor_version_match "${_mpfr_version_header}") | |
|   set(MPFR_MINOR_VERSION "${CMAKE_MATCH_1}") | |
|   string(REGEX MATCH "define[ \t]+MPFR_VERSION_PATCHLEVEL[ \t]+([0-9]+)" _mpfr_patchlevel_version_match "${_mpfr_version_header}") | |
|   set(MPFR_PATCHLEVEL_VERSION "${CMAKE_MATCH_1}") | |
|    | |
|   set(MPFR_VERSION ${MPFR_MAJOR_VERSION}.${MPFR_MINOR_VERSION}.${MPFR_PATCHLEVEL_VERSION}) | |
|    | |
|   # Check whether found version exceeds minimum version | |
|    | |
|   if(${MPFR_VERSION} VERSION_LESS ${MPFR_FIND_VERSION}) | |
|     set(MPFR_VERSION_OK FALSE) | |
|     message(STATUS "MPFR version ${MPFR_VERSION} found in ${MPFR_INCLUDES}, " | |
|                    "but at least version ${MPFR_FIND_VERSION} is required") | |
|   else(${MPFR_VERSION} VERSION_LESS ${MPFR_FIND_VERSION}) | |
|     set(MPFR_VERSION_OK TRUE) | |
|   endif(${MPFR_VERSION} VERSION_LESS ${MPFR_FIND_VERSION}) | |
|  | |
| endif(MPFR_INCLUDES) | |
|  | |
| # Set MPFR_LIBRARIES | |
|  | |
| find_library(MPFR_LIBRARIES mpfr PATHS $ENV{GMPDIR} ${LIB_INSTALL_DIR}) | |
|  | |
| # Epilogue | |
|  | |
| include(FindPackageHandleStandardArgs) | |
| find_package_handle_standard_args(MPFR DEFAULT_MSG | |
|                                   MPFR_INCLUDES MPFR_LIBRARIES MPFR_VERSION_OK) | |
| mark_as_advanced(MPFR_INCLUDES MPFR_LIBRARIES)
 |