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chuckv |
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# This file defines the following macros for developers to use in ensuring |
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# that installed software is of the right version: |
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# |
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# MACRO_ENSURE_VERSION - test that a version number is greater than |
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# or equal to some minimum |
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# MACRO_ENSURE_VERSION_RANGE - test that a version number is greater than |
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# or equal to some minimum and less than some |
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# maximum |
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# MACRO_ENSURE_VERSION2 - deprecated, do not use in new code |
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# |
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# MACRO_ENSURE_VERSION |
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# This macro compares version numbers of the form "x.y.z" or "x.y" |
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# MACRO_ENSURE_VERSION( FOO_MIN_VERSION FOO_VERSION_FOUND FOO_VERSION_OK) |
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# will set FOO_VERSION_OK to true if FOO_VERSION_FOUND >= FOO_MIN_VERSION |
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# Leading and trailing text is ok, e.g. |
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# MACRO_ENSURE_VERSION( "2.5.31" "flex 2.5.4a" VERSION_OK) |
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# which means 2.5.31 is required and "flex 2.5.4a" is what was found on the system |
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# Copyright (c) 2006, David Faure, <faure@kde.org> |
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# Copyright (c) 2007, Will Stephenson <wstephenson@kde.org> |
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# |
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# Redistribution and use is allowed according to the terms of the BSD license. |
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file. |
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# MACRO_ENSURE_VERSION_RANGE |
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# This macro ensures that a version number of the form |
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# "x.y.z" or "x.y" falls within a range defined by |
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# min_version <= found_version < max_version. |
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# If this expression holds, FOO_VERSION_OK will be set TRUE |
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# |
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# Example: MACRO_ENSURE_VERSION_RANGE3( "0.1.0" ${FOOCODE_VERSION} "0.7.0" FOO_VERSION_OK ) |
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# |
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# This macro will break silently if any of x,y,z are greater than 100. |
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# |
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# Copyright (c) 2007, Will Stephenson <wstephenson@kde.org> |
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# |
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# Redistribution and use is allowed according to the terms of the BSD license. |
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file. |
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# NORMALIZE_VERSION |
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# Helper macro to convert version numbers of the form "x.y.z" |
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# to an integer equal to 10^4 * x + 10^2 * y + z |
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# |
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# This macro will break silently if any of x,y,z are greater than 100. |
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# |
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# Copyright (c) 2006, David Faure, <faure@kde.org> |
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# Copyright (c) 2007, Will Stephenson <wstephenson@kde.org> |
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# |
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# Redistribution and use is allowed according to the terms of the BSD license. |
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file. |
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# CHECK_RANGE_INCLUSIVE_LOWER |
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# Helper macro to check whether x <= y < z |
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# |
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# Copyright (c) 2007, Will Stephenson <wstephenson@kde.org> |
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# |
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# Redistribution and use is allowed according to the terms of the BSD license. |
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file. |
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MACRO(NORMALIZE_VERSION _requested_version _normalized_version) |
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STRING(REGEX MATCH "[^0-9]*[0-9]+\\.[0-9]+\\.[0-9]+.*" _threePartMatch "${_requested_version}") |
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if (_threePartMatch) |
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# parse the parts of the version string |
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STRING(REGEX REPLACE "[^0-9]*([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" _major_vers "${_requested_version}") |
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STRING(REGEX REPLACE "[^0-9]*[0-9]+\\.([0-9]+)\\.[0-9]+.*" "\\1" _minor_vers "${_requested_version}") |
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STRING(REGEX REPLACE "[^0-9]*[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" _patch_vers "${_requested_version}") |
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else (_threePartMatch) |
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STRING(REGEX REPLACE "([0-9]+)\\.[0-9]+" "\\1" _major_vers "${_requested_version}") |
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STRING(REGEX REPLACE "[0-9]+\\.([0-9]+)" "\\1" _minor_vers "${_requested_version}") |
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set(_patch_vers "0") |
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endif (_threePartMatch) |
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# compute an overall version number which can be compared at once |
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MATH(EXPR ${_normalized_version} "${_major_vers}*10000 + ${_minor_vers}*100 + ${_patch_vers}") |
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ENDMACRO(NORMALIZE_VERSION) |
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MACRO(MACRO_CHECK_RANGE_INCLUSIVE_LOWER _lower_limit _value _upper_limit _ok) |
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if (${_value} LESS ${_lower_limit}) |
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set( ${_ok} FALSE ) |
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elseif (${_value} EQUAL ${_lower_limit}) |
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set( ${_ok} TRUE ) |
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elseif (${_value} EQUAL ${_upper_limit}) |
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set( ${_ok} FALSE ) |
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elseif (${_value} GREATER ${_upper_limit}) |
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set( ${_ok} FALSE ) |
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else (${_value} LESS ${_lower_limit}) |
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set( ${_ok} TRUE ) |
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endif (${_value} LESS ${_lower_limit}) |
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ENDMACRO(MACRO_CHECK_RANGE_INCLUSIVE_LOWER) |
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MACRO(MACRO_ENSURE_VERSION requested_version found_version var_too_old) |
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NORMALIZE_VERSION( ${requested_version} req_vers_num ) |
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NORMALIZE_VERSION( ${found_version} found_vers_num ) |
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if (found_vers_num LESS req_vers_num) |
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set( ${var_too_old} FALSE ) |
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else (found_vers_num LESS req_vers_num) |
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set( ${var_too_old} TRUE ) |
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endif (found_vers_num LESS req_vers_num) |
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ENDMACRO(MACRO_ENSURE_VERSION) |
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MACRO(MACRO_ENSURE_VERSION2 requested_version2 found_version2 var_too_old2) |
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MACRO_ENSURE_VERSION( ${requested_version2} ${found_version2} ${var_too_old2}) |
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ENDMACRO(MACRO_ENSURE_VERSION2) |
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MACRO(MACRO_ENSURE_VERSION_RANGE min_version found_version max_version var_ok) |
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NORMALIZE_VERSION( ${min_version} req_vers_num ) |
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NORMALIZE_VERSION( ${found_version} found_vers_num ) |
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NORMALIZE_VERSION( ${max_version} max_vers_num ) |
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MACRO_CHECK_RANGE_INCLUSIVE_LOWER( ${req_vers_num} ${found_vers_num} ${max_vers_num} ${var_ok}) |
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ENDMACRO(MACRO_ENSURE_VERSION_RANGE) |
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