diff options
Diffstat (limited to 'Resources/CheckTypeSize.cmake')
-rw-r--r-- | Resources/CheckTypeSize.cmake | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Resources/CheckTypeSize.cmake b/Resources/CheckTypeSize.cmake new file mode 100644 index 0000000..2e83080 --- /dev/null +++ b/Resources/CheckTypeSize.cmake @@ -0,0 +1,48 @@ +# +# Check if the type exists and determine size of type. if the type +# exists, the size will be stored to the variable. +# +# CHECK_TYPE_SIZE - macro which checks the size of type +# VARIABLE - variable to store size if the type exists. +# HAVE_${VARIABLE} - does the variable exists or not +# + +MACRO (HDF_CHECK_TYPE_SIZE TYPE VARIABLE) + SET (CMAKE_ALLOW_UNKNOWN_VARIABLE_READ_ACCESS 1) + IF ("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$") + SET (MACRO_CHECK_TYPE_SIZE_FLAGS + "-DCHECK_TYPE_SIZE_TYPE=\"${TYPE}\" ${CMAKE_REQUIRED_FLAGS}" + ) + FOREACH (def HAVE_SYS_TYPES_H HAVE_STDINT_H HAVE_STDDEF_H HAVE_INTTYPES_H) + IF ("${def}") + SET (MACRO_CHECK_TYPE_SIZE_FLAGS "${MACRO_CHECK_TYPE_SIZE_FLAGS} -D${def}") + ENDIF("${def}") + ENDFOREACH (def) + + MESSAGE (STATUS "Check size of ${TYPE}") + IF (CMAKE_REQUIRED_LIBRARIES) + SET (CHECK_TYPE_SIZE_ADD_LIBRARIES + "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}" + ) + ENDIF (CMAKE_REQUIRED_LIBRARIES) + TRY_RUN (${VARIABLE} HAVE_${VARIABLE} + ${CMAKE_BINARY_DIR} + ${HDF5_PROJECT_DIR}/Resources/CheckTypeSize.c + CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_TYPE_SIZE_FLAGS} + "${CHECK_TYPE_SIZE_ADD_LIBRARIES}" + OUTPUT_VARIABLE OUTPUT + ) + IF (HAVE_${VARIABLE}) + MESSAGE (STATUS "Check size of ${TYPE} - done") + FILE (APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log + "Determining size of ${TYPE} passed with the following output:\n${OUTPUT}\n\n" + ) + ELSE (HAVE_${VARIABLE}) + MESSAGE (STATUS "Check size of ${TYPE} - failed") + FILE (APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log + "Determining size of ${TYPE} failed with the following output:\n${OUTPUT}\n\n" + ) + ENDIF (HAVE_${VARIABLE}) + ENDIF ("HAVE_${VARIABLE}" MATCHES "^HAVE_${VARIABLE}$") + SET (CMAKE_ALLOW_UNKNOWN_VARIABLE_READ_ACCESS) +ENDMACRO (HDF_CHECK_TYPE_SIZE) |