mirror of https://github.com/wolfSSL/wolfMQTT.git
66 lines
2.3 KiB
CMake
66 lines
2.3 KiB
CMake
function(override_cache VAR VAL)
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get_property(VAR_STRINGS CACHE ${VAR} PROPERTY STRINGS)
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LIST(FIND VAR_STRINGS ${VAL} CK)
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if(-1 EQUAL ${CK})
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message(SEND_ERROR
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"\"${VAL}\" is not valid override value for \"${VAR}\"."
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" Please select value from \"${VAR_STRINGS}\"\n")
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endif()
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set_property(CACHE ${VAR} PROPERTY VALUE ${VAL})
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endfunction()
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function(add_option NAME HELP_STRING DEFAULT VALUES)
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# Set the default value for the option.
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set(${NAME} ${DEFAULT} CACHE STRING ${HELP_STRING})
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# Set the list of allowed values for the option.
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set_property(CACHE ${NAME} PROPERTY STRINGS ${VALUES})
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if(DEFINED ${NAME})
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list(FIND VALUES ${${NAME}} IDX)
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#
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# If the given value isn't in the list of allowed values for the option,
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# reduce it to yes/no according to CMake's "if" logic:
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# https://cmake.org/cmake/help/latest/command/if.html#basic-expressions
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#
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# This has no functional impact; it just makes the settings in
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# CMakeCache.txt and cmake-gui easier to read.
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#
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if (${IDX} EQUAL -1)
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if(${${NAME}})
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override_cache(${NAME} "yes")
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else()
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override_cache(${NAME} "no")
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endif()
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endif()
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endif()
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endfunction()
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function(add_to_options_file DEFINITIONS OPTION_FILE)
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list(REMOVE_DUPLICATES DEFINITIONS)
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foreach(DEF IN LISTS DEFINITIONS)
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if(DEF MATCHES "^-D")
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if(DEF MATCHES "^-D(N)?DEBUG(=.+)?")
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message("not outputting (N)DEBUG to ${OPTION_FILE}")
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endif()
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# allow user to ignore system options
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if(DEF MATCHES "^-D_.*")
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file(APPEND ${OPTION_FILE} "#ifndef WOLFSSL_OPTIONS_IGNORE_SYS\n")
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endif()
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string(REGEX REPLACE "^-D" "" DEF_NO_PREFIX ${DEF})
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string(REGEX REPLACE "=.*$" "" DEF_NO_EQUAL_NO_VAL ${DEF_NO_PREFIX})
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string(REPLACE "=" " " DEF_NO_EQUAL ${DEF_NO_PREFIX})
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file(APPEND ${OPTION_FILE} "#undef ${DEF_NO_EQUAL_NO_VAL}\n")
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file(APPEND ${OPTION_FILE} "#define ${DEF_NO_EQUAL}\n")
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if(DEF MATCHES "^-D_.*")
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file(APPEND ${OPTION_FILE} "#endif\n")
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endif()
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file(APPEND ${OPTION_FILE} "\n")
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endif()
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endforeach()
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endfunction()
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