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| -rw-r--r-- | cmake/MacroEnsureVersion.cmake | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/cmake/MacroEnsureVersion.cmake b/cmake/MacroEnsureVersion.cmake new file mode 100644 index 0000000..a4f1c52 --- /dev/null +++ b/cmake/MacroEnsureVersion.cmake @@ -0,0 +1,115 @@ +# This file defines the following macros for developers to use in ensuring +# that installed software is of the right version: +# +# MACRO_ENSURE_VERSION - test that a version number is greater than +# or equal to some minimum +# MACRO_ENSURE_VERSION_RANGE - test that a version number is greater than +# or equal to some minimum and less than some +# maximum +# MACRO_ENSURE_VERSION2 - deprecated, do not use in new code +# + +# MACRO_ENSURE_VERSION +# This macro compares version numbers of the form "x.y.z" or "x.y" +# MACRO_ENSURE_VERSION( FOO_MIN_VERSION FOO_VERSION_FOUND FOO_VERSION_OK) +# will set FOO_VERSION_OK to true if FOO_VERSION_FOUND >= FOO_MIN_VERSION +# Leading and trailing text is ok, e.g. +# MACRO_ENSURE_VERSION( "2.5.31" "flex 2.5.4a" VERSION_OK) +# which means 2.5.31 is required and "flex 2.5.4a" is what was found on the system + +# Copyright (c) 2006, David Faure, <faure@kde.org> +# Copyright (c) 2007, Will Stephenson <wstephenson@kde.org> +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + +# MACRO_ENSURE_VERSION_RANGE +# This macro ensures that a version number of the form +# "x.y.z" or "x.y" falls within a range defined by +# min_version <= found_version < max_version. +# If this expression holds, FOO_VERSION_OK will be set TRUE +# +# Example: MACRO_ENSURE_VERSION_RANGE3( "0.1.0" ${FOOCODE_VERSION} "0.7.0" FOO_VERSION_OK ) +# +# This macro will break silently if any of x,y,z are greater than 100. +# +# Copyright (c) 2007, Will Stephenson <wstephenson@kde.org> +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + +# NORMALIZE_VERSION +# Helper macro to convert version numbers of the form "x.y.z" +# to an integer equal to 10^4 * x + 10^2 * y + z +# +# This macro will break silently if any of x,y,z are greater than 100. +# +# Copyright (c) 2006, David Faure, <faure@kde.org> +# Copyright (c) 2007, Will Stephenson <wstephenson@kde.org> +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + +# CHECK_RANGE_INCLUSIVE_LOWER +# Helper macro to check whether x <= y < z +# +# Copyright (c) 2007, Will Stephenson <wstephenson@kde.org> +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + + +MACRO(NORMALIZE_VERSION _requested_version _normalized_version) + STRING(REGEX MATCH "[^0-9]*[0-9]+\\.[0-9]+\\.[0-9]+.*" _threePartMatch "${_requested_version}") + if (_threePartMatch) + # parse the parts of the version string + STRING(REGEX REPLACE "[^0-9]*([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" _major_vers "${_requested_version}") + STRING(REGEX REPLACE "[^0-9]*[0-9]+\\.([0-9]+)\\.[0-9]+.*" "\\1" _minor_vers "${_requested_version}") + STRING(REGEX REPLACE "[^0-9]*[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" _patch_vers "${_requested_version}") + else (_threePartMatch) + STRING(REGEX REPLACE "([0-9]+)\\.[0-9]+" "\\1" _major_vers "${_requested_version}") + STRING(REGEX REPLACE "[0-9]+\\.([0-9]+)" "\\1" _minor_vers "${_requested_version}") + set(_patch_vers "0") + endif (_threePartMatch) + + # compute an overall version number which can be compared at once + MATH(EXPR ${_normalized_version} "${_major_vers}*10000 + ${_minor_vers}*100 + ${_patch_vers}") +ENDMACRO(NORMALIZE_VERSION) + +MACRO(MACRO_CHECK_RANGE_INCLUSIVE_LOWER _lower_limit _value _upper_limit _ok) + if (${_value} LESS ${_lower_limit}) + set( ${_ok} FALSE ) + elseif (${_value} EQUAL ${_lower_limit}) + set( ${_ok} TRUE ) + elseif (${_value} EQUAL ${_upper_limit}) + set( ${_ok} FALSE ) + elseif (${_value} GREATER ${_upper_limit}) + set( ${_ok} FALSE ) + else (${_value} LESS ${_lower_limit}) + set( ${_ok} TRUE ) + endif (${_value} LESS ${_lower_limit}) +ENDMACRO(MACRO_CHECK_RANGE_INCLUSIVE_LOWER) + +MACRO(MACRO_ENSURE_VERSION requested_version found_version var_too_old) + NORMALIZE_VERSION( ${requested_version} req_vers_num ) + NORMALIZE_VERSION( ${found_version} found_vers_num ) + + if (found_vers_num LESS req_vers_num) + set( ${var_too_old} FALSE ) + else (found_vers_num LESS req_vers_num) + set( ${var_too_old} TRUE ) + endif (found_vers_num LESS req_vers_num) + +ENDMACRO(MACRO_ENSURE_VERSION) + +MACRO(MACRO_ENSURE_VERSION2 requested_version2 found_version2 var_too_old2) + MACRO_ENSURE_VERSION( ${requested_version2} ${found_version2} ${var_too_old2}) +ENDMACRO(MACRO_ENSURE_VERSION2) + +MACRO(MACRO_ENSURE_VERSION_RANGE min_version found_version max_version var_ok) + NORMALIZE_VERSION( ${min_version} req_vers_num ) + NORMALIZE_VERSION( ${found_version} found_vers_num ) + NORMALIZE_VERSION( ${max_version} max_vers_num ) + + MACRO_CHECK_RANGE_INCLUSIVE_LOWER( ${req_vers_num} ${found_vers_num} ${max_vers_num} ${var_ok}) +ENDMACRO(MACRO_ENSURE_VERSION_RANGE) |