cgal/Installation/cmake/modules/CGAL_SetupGMP.cmake

51 lines
1.2 KiB
CMake

#.rst:
# CGAL_SetupGMP
# -------------
#
# The module searchs for the `GMP` and `MPFR` headers and libraries,
# by calling
#
# .. code-block:: cmake
#
# find_package(GMP)
# find_package(MPFR)
#
# and defines the function :command:`use_CGAL_GMP_support`.
if(CGAL_SetupGMP_included OR CGAL_DISABLE_GMP)
return()
endif()
set(CGAL_SetupGMP_included TRUE)
find_package(GMP)
find_package(MPFR)
#.rst:
# Provided Functions
# ^^^^^^^^^^^^^^^^^^
#
# .. command:: use_CGAL_GMP_support
#
# Link the target with the `GMP` and `MPFR` libraries::
#
# use_CGAL_GMP_support( target [INTERFACE] )
#
# If the option ``INTERFACE`` is passed, the dependencies are
# added using :command:`target_link_libraries` with the ``INTERFACE``
# keyword, or ``PUBLIC`` otherwise.
function(use_CGAL_GMP_support target)
if(ARGV1 STREQUAL INTERFACE)
set(keyword INTERFACE)
else()
set(keyword PUBLIC)
endif()
if(NOT GMP_FOUND OR NOT MPFR_FOUND)
message(FATAL_ERROR "CGAL requires GMP and MPFR.")
return()
endif()
target_include_directories(${target} SYSTEM ${keyword} ${GMP_INCLUDE_DIR} ${MPFR_INCLUDE_DIR})
target_link_libraries(${target} ${keyword} ${GMP_LIBRARIES} ${MPFR_LIBRARIES})
endfunction()