2018-01-14 23:25:35 +00:00
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# Function to check the toolchain used the expected version
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# of crosstool, and warn otherwise
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set(ctng_version_warning "Check Getting Started documentation or proceed at own risk.")
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function(gcc_version_check expected_gcc_version)
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2018-02-27 04:45:30 +00:00
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if(NOT "${CMAKE_C_COMPILER_VERSION}" STREQUAL "${expected_gcc_version}")
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message(WARNING "Xtensa toolchain ${CMAKE_C_COMPILER} version ${CMAKE_C_COMPILER_VERSION} "
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"is not the supported version ${expected_gcc_version}. ${ctng_version_warning}")
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endif()
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2018-01-14 23:25:35 +00:00
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endfunction()
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function(crosstool_version_check expected_ctng_version)
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2018-02-27 04:45:30 +00:00
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execute_process(
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COMMAND ${CMAKE_C_COMPILER} -v
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ERROR_VARIABLE toolchain_stderr
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OUTPUT_QUIET)
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2018-01-14 23:25:35 +00:00
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string(REGEX MATCH "crosstool-ng-[0-9a-g\\.-]+" ctng_version "${toolchain_stderr}")
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string(REPLACE "crosstool-ng-" "" ctng_version "${ctng_version}")
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2018-03-20 01:27:00 +00:00
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# We use FIND to match version instead of STREQUAL because some toolchains are built
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# with longer git hash strings than others. This will match any version which starts with
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# the expected version string.
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string(FIND "${ctng_version}" "${expected_ctng_version}" found_expected_version)
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2018-01-14 23:25:35 +00:00
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if(NOT ctng_version)
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message(WARNING "Xtensa toolchain ${CMAKE_C_COMPILER} does not appear to be built with crosstool-ng. "
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"${ctng_version_warning}")
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elseif(found_expected_version EQUAL -1)
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message(WARNING "Xtensa toolchain ${CMAKE_C_COMPILER} crosstool-ng version ${ctng_version} "
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"doesn't match supported version ${expected_ctng_version}. ${ctng_version_warning}")
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endif()
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endfunction()
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