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35 # - Define macro to check restrict keyword
37 # GMX_TEST_RESTRICT(VARIABLE)
39 # VARIABLE will be set to the keyword
41 # Remember to have a cmakedefine for it too...
43 MACRO(GMX_TEST_RESTRICT VARIABLE)
44 IF(NOT DEFINED TEST_${VARIABLE})
46 MESSAGE(STATUS "Checking for restrict keyword")
48 # Start with __restrict__, since that is the C++ default keyword.
49 FOREACH(KEYWORD "__restrict__" "__restrict" "restrict")
50 IF(NOT TEST_${VARIABLE})
51 TRY_COMPILE(TEST_${VARIABLE} "${CMAKE_BINARY_DIR}"
52 "${CMAKE_SOURCE_DIR}/cmake/TestRestrict.c"
53 COMPILE_DEFINITIONS "-DTESTRESTRICTDEF=${KEYWORD}" )
54 SET(LAST_RESTRICT_KEYWORD ${KEYWORD})
55 ENDIF(NOT TEST_${VARIABLE})
59 SET(${VARIABLE} ${LAST_RESTRICT_KEYWORD} CACHE INTERNAL "Restrict keyword" FORCE)
60 MESSAGE(STATUS "Checking for restrict keyword - ${LAST_RESTRICT_KEYWORD}")
61 ELSE(TEST_${VARIABLE})
62 SET(${VARIABLE} " " CACHE INTERNAL "Restrict keyword" FORCE)
63 MESSAGE(STATUS "Checking for restrict keyword - not found")
64 ENDIF(TEST_${VARIABLE})
66 ENDIF(NOT DEFINED TEST_${VARIABLE})
67 ENDMACRO(GMX_TEST_RESTRICT VARIABLE)