cmake: improved DTC detection handling
Fixes: #26096 In some cases DTC may be installed, but in a non-working state. In such cases, CMake will abort processing with an cryptic error. This commit now handles dtc version errors and print a warning., and CMake processing continues. dtc is an optional component and failures should not break CMake run. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
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1 changed files with 16 additions and 7 deletions
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@ -59,17 +59,26 @@ if(DTC)
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COMMAND
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${DTC} --version
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OUTPUT_VARIABLE dtc_version_output
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ERROR_VARIABLE dtc_error_output
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RESULT_VARIABLE dtc_status
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)
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string(REGEX MATCH "Version: DTC ([0-9]+[.][0-9]+[.][0-9]+).*" out_var ${dtc_version_output})
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# Since it is optional, an outdated version is not an error. If an
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# outdated version is discovered, print a warning and proceed as if
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# DTC were not installed.
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if(${CMAKE_MATCH_1} VERSION_GREATER ${MIN_DTC_VERSION})
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message(STATUS "Found dtc: ${DTC} (found suitable version \"${CMAKE_MATCH_1}\", minimum required is \"${MIN_DTC_VERSION}\")")
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if(${dtc_status} EQUAL 0)
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string(REGEX MATCH "Version: DTC ([0-9]+[.][0-9]+[.][0-9]+).*" out_var ${dtc_version_output})
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# Since it is optional, an outdated version is not an error. If an
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# outdated version is discovered, print a warning and proceed as if
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# DTC were not installed.
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if(${CMAKE_MATCH_1} VERSION_GREATER ${MIN_DTC_VERSION})
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message(STATUS "Found dtc: ${DTC} (found suitable version \"${CMAKE_MATCH_1}\", minimum required is \"${MIN_DTC_VERSION}\")")
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else()
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message(WARNING
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"Could NOT find dtc: Found unsuitable version \"${CMAKE_MATCH_1}\", but required is at least \"${MIN_DTC_VERSION}\" (found ${DTC}). Optional devicetree error checking with dtc will not be performed.")
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set(DTC DTC-NOTFOUND)
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endif()
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else()
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message(WARNING
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"Could NOT find dtc: Found unsuitable version \"${CMAKE_MATCH_1}\", but required is at least \"${MIN_DTC_VERSION}\" (found ${DTC}). Optional devicetree error checking with dtc will not be performed.")
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"Could NOT find working dtc: Found dtc (${DTC}), but failed to load with:\n ${dtc_error_output}")
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set(DTC DTC-NOTFOUND)
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endif()
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endif()
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