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1 # This is a basic version file for the Config-mode of find_package().
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2 # It is used by write_basic_package_version_file() as input file for configure_file()
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3 # to create a version-file which can be installed along a config.cmake file.
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4 #
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5 # The created file sets PACKAGE_VERSION_EXACT if the current version string and
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6 # the requested version string are exactly the same and it sets
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7 # PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
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8 # but only if the requested major version is the same as the current one.
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9 # The variable CVF_VERSION must be set before calling configure_file().
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10
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11
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12 set(PACKAGE_VERSION "1.5.6")
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13
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14 if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
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15 set(PACKAGE_VERSION_COMPATIBLE FALSE)
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16 else()
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17
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18 if("1.5.6" MATCHES "^([0-9]+)\\.")
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19 set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
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20 if(NOT CVF_VERSION_MAJOR VERSION_EQUAL 0)
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21 string(REGEX REPLACE "^0+" "" CVF_VERSION_MAJOR "${CVF_VERSION_MAJOR}")
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22 endif()
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23 else()
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24 set(CVF_VERSION_MAJOR "1.5.6")
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25 endif()
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26
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27 if(PACKAGE_FIND_VERSION_RANGE)
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28 # both endpoints of the range must have the expected major version
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29 math (EXPR CVF_VERSION_MAJOR_NEXT "${CVF_VERSION_MAJOR} + 1")
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30 if (NOT PACKAGE_FIND_VERSION_MIN_MAJOR STREQUAL CVF_VERSION_MAJOR
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31 OR ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND NOT PACKAGE_FIND_VERSION_MAX_MAJOR STREQUAL CVF_VERSION_MAJOR)
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32 OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND NOT PACKAGE_FIND_VERSION_MAX VERSION_LESS_EQUAL CVF_VERSION_MAJOR_NEXT)))
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33 set(PACKAGE_VERSION_COMPATIBLE FALSE)
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34 elseif(PACKAGE_FIND_VERSION_MIN_MAJOR STREQUAL CVF_VERSION_MAJOR
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35 AND ((PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "INCLUDE" AND PACKAGE_VERSION VERSION_LESS_EQUAL PACKAGE_FIND_VERSION_MAX)
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36 OR (PACKAGE_FIND_VERSION_RANGE_MAX STREQUAL "EXCLUDE" AND PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION_MAX)))
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37 set(PACKAGE_VERSION_COMPATIBLE TRUE)
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38 else()
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39 set(PACKAGE_VERSION_COMPATIBLE FALSE)
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40 endif()
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41 else()
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42 if(PACKAGE_FIND_VERSION_MAJOR STREQUAL CVF_VERSION_MAJOR)
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43 set(PACKAGE_VERSION_COMPATIBLE TRUE)
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44 else()
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45 set(PACKAGE_VERSION_COMPATIBLE FALSE)
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46 endif()
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47
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48 if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
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49 set(PACKAGE_VERSION_EXACT TRUE)
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50 endif()
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51 endif()
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52 endif()
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53
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54
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55 # if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
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56 if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "8" STREQUAL "")
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57 return()
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58 endif()
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59
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60 # check that the installed version has the same 32/64bit-ness as the one which is currently searching:
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61 if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "8")
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62 math(EXPR installedBits "8 * 8")
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63 set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
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64 set(PACKAGE_VERSION_UNSUITABLE TRUE)
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65 endif()
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