|
|
|
|
# .. cmake_module::
|
|
|
|
|
#
|
|
|
|
|
# Find the GNU MULTI-Precision Bignum (GMP) library
|
|
|
|
|
# and the corresponding C++ bindings GMPxx
|
|
|
|
|
#
|
|
|
|
|
# You may set the following variables to modify the
|
|
|
|
|
# behaviour of this module:
|
|
|
|
|
#
|
|
|
|
|
# :ref:`GMP_ROOT`
|
|
|
|
|
# Path list to search for GMP and GMPxx
|
|
|
|
|
#
|
|
|
|
|
# Sets the following variables:
|
|
|
|
|
#
|
|
|
|
|
# :code:`GMP_FOUND`
|
|
|
|
|
# True if the GMP library, the GMPxx headers and
|
|
|
|
|
# the GMPxx library were found.
|
|
|
|
|
#
|
|
|
|
|
# .. cmake_variable:: GMP_ROOT
|
|
|
|
|
#
|
|
|
|
|
# You may set this variable to have :ref:`FindGMP` look
|
|
|
|
|
# for the gmp and gmpxx packages in the given path before
|
|
|
|
|
# inspecting system paths.
|
|
|
|
|
#
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# search for location of header gmpxx.h", only at positions given by the user
|
|
|
|
|
find_path(GMPXX_INCLUDE_DIR
|
|
|
|
|
NAMES "gmpxx.h"
|
|
|
|
|
PATHS ${GMP_PREFIX} ${GMP_ROOT}
|
|
|
|
|
PATH_SUFFIXES include
|
|
|
|
|
NO_DEFAULT_PATH)
|
|
|
|
|
# try default paths now
|
|
|
|
|
find_path(GMPXX_INCLUDE_DIR
|
|
|
|
|
NAMES "gmpxx.h")
|
|
|
|
|
|
|
|
|
|
# check if header is accepted
|
|
|
|
|
include(CMakePushCheckState)
|
|
|
|
|
cmake_push_check_state()
|
|
|
|
|
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${GMPXX_INCLUDE_DIR})
|
|
|
|
|
include(CheckIncludeFileCXX)
|
|
|
|
|
check_include_file_cxx("gmpxx.h" GMP_HEADER_WORKS)
|
|
|
|
|
|
|
|
|
|
# look for library gmp, only at positions given by the user
|
|
|
|
|
find_library(GMP_LIB
|
|
|
|
|
NAMES gmp libgmp
|
|
|
|
|
PATHS ${GMP_PREFIX} ${GMP_ROOT} "/usr/lib/x86_64-linux-gnu"
|
|
|
|
|
PATH_SUFFIXES lib lib64
|
|
|
|
|
NO_DEFAULT_PATH
|
|
|
|
|
DOC "GNU GMP library")
|
|
|
|
|
# try default paths now
|
|
|
|
|
find_library(GMP_LIB
|
|
|
|
|
NAMES libgmp gmp)
|
|
|
|
|
|
|
|
|
|
# look for library gmpxx, only at positions given by the user
|
|
|
|
|
find_library(GMPXX_LIB
|
|
|
|
|
NAMES gmpxx libgmpxx
|
|
|
|
|
PATHS ${GMP_PREFIX} ${GMP_ROOT} "/usr/lib/x86_64-linux-gnu"
|
|
|
|
|
PATH_SUFFIXES lib lib64
|
|
|
|
|
NO_DEFAULT_PATH
|
|
|
|
|
DOC "GNU GMPXX library")
|
|
|
|
|
# try default paths now
|
|
|
|
|
find_library(GMPXX_LIB
|
|
|
|
|
NAMES libgmpxx gmpxx)
|
|
|
|
|
|
|
|
|
|
# check if library works
|
|
|
|
|
if(GMP_LIB AND GMPXX_LIB)
|
|
|
|
|
include(CheckSymbolExists)
|
|
|
|
|
check_library_exists(${GMP_LIB} __gmpz_abs "" GMPXX_LIB_WORKS)
|
|
|
|
|
endif(GMP_LIB AND GMPXX_LIB)
|
|
|
|
|
cmake_pop_check_state()
|
|
|
|
|
|
|
|
|
|
# behave like a CMake module is supposed to behave
|
|
|
|
|
include(FindPackageHandleStandardArgs)
|
|
|
|
|
find_package_handle_standard_args(
|
|
|
|
|
"GMP"
|
|
|
|
|
DEFAULT_MSG
|
|
|
|
|
GMPXX_INCLUDE_DIR GMP_LIB GMPXX_LIB GMP_HEADER_WORKS GMPXX_LIB_WORKS
|
|
|
|
|
)
|
|
|
|
|
|
|
|
|
|
mark_as_advanced(GMP_LIB GMPXX_LIB GMPXX_INCLUDE_DIR)
|
|
|
|
|
|
|
|
|
|
# if GMPxx headers, GMP library, and GMPxx library are found, store results
|
|
|
|
|
if(GMP_FOUND)
|
|
|
|
|
set(GMP_INCLUDE_DIRS ${GMPXX_INCLUDE_DIR})
|
|
|
|
|
set(GMP_LIBRARIES ${GMP_LIB} ${GMPXX_LIB})
|
|
|
|
|
set(GMP_COMPILE_FLAGS "-DENABLE_GMP=1")
|
|
|
|
|
# log result
|
|
|
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
|
|
|
|
"Determining location of GMP, GMPxx succeeded:\n"
|
|
|
|
|
"Include directory: ${GMP_INCLUDE_DIRS}\n"
|
|
|
|
|
"Library directory: ${GMP_LIBRARIES}\n\n")
|
|
|
|
|
else()
|
|
|
|
|
# log errornous result
|
|
|
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
|
|
|
|
"Determining location of GMP, GMPxx failed:\n"
|
|
|
|
|
"Include directory: ${GMPXX_INCLUDE_DIR}\n"
|
|
|
|
|
"gmp library directory: ${GMP_LIB}\n"
|
|
|
|
|
"gmpxx library directory: ${GMPXX_LIB}\n\n")
|
|
|
|
|
endif()
|
|
|
|
|
|
|
|
|
|
# set HAVE_GMP for config.h
|
|
|
|
|
set(HAVE_GMP ${GMP_FOUND})
|
