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#  GMX_TEST_MM_MALLOC(VARIABLE)
#
#  VARIABLE will be set to true if we find _mm_malloc() and _mm_free().
#
#  The macro will also check whether the headers mm_malloc.h, malloc.h and
#  xmmintrin.h are present, since the routines might be defined in either,
#  and set the corresponding HAVE_MM_MALLOC_H, HAVE_MALLOC_H, and
#  HAVE_XMMINTRIN_H if it hasn't already been done outside this file.
#
MACRO(GMX_TEST_MM_MALLOC VARIABLE)
    IF(NOT DEFINED ${VARIABLE})

        check_include_files(mm_malloc.h HAVE_MM_MALLOC_H)
        check_include_files(malloc.h    HAVE_MALLOC_H)
        check_include_files(xmmintrin.h HAVE_XMMINTRIN_H)

        MESSAGE(STATUS "Checking for _mm_malloc()")

        TRY_COMPILE(${VARIABLE} "${CMAKE_BINARY_DIR}"
                    "${CMAKE_SOURCE_DIR}/cmake/TestMMMalloc.cpp"
                    COMPILE_DEFINITIONS
                    "-DHAVE_MM_MALLOC_H=${HAVE_MM_MALLOC_H}"
                    "-DHAVE_MALLOC_H=${HAVE_MALLOC_H}"
                    "-DHAVE_XMMINTRIN_H=${HAVE_XMMINTRIN_H}"
                    OUTPUT_VARIABLE MM_MALLOC_COMPILE_OUTPUT)

        if(${VARIABLE})
            MESSAGE(STATUS "Checking for _mm_malloc() - supported")
            set(${VARIABLE} 1 CACHE INTERNAL "Result of test for _mm_malloc" FORCE)
        else()
            MESSAGE(STATUS "Checking for _mm_malloc() - not supported")
            set(${VARIABLE} 0 CACHE INTERNAL "Result of test for _mm_malloc()" FORCE)
        endif()

    ENDIF()
ENDMACRO(GMX_TEST_MM_MALLOC VARIABLE)