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authorAlex Neundorf <neundorf@kde.org>2011-08-01 20:59:18 (GMT)
committerAlex Neundorf <neundorf@kde.org>2011-08-01 20:59:18 (GMT)
commitd216a67e4a41d443d97f9e3b0470b21d1c822b3d (patch)
tree1786c8b02885f70eface14b5fbea20dadc8af9cf /Modules/BasicConfigVersion-SameMajorVersion.cmake.in
parentcbaf9445680c7138ef6eaee7bdf8f5df8b3fcc89 (diff)
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Provide macro write_basic_config_version_file()
This macro can be used to generate basic version files which can be installed along a Config.cmake file to provide versioning support. This (3rd try) is implemented using a macro, which maps the COMPATIBILITY mode to a filename and configure_file()s the resulting file. Alex
Diffstat (limited to 'Modules/BasicConfigVersion-SameMajorVersion.cmake.in')
-rw-r--r--Modules/BasicConfigVersion-SameMajorVersion.cmake.in43
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diff --git a/Modules/BasicConfigVersion-SameMajorVersion.cmake.in b/Modules/BasicConfigVersion-SameMajorVersion.cmake.in
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+++ b/Modules/BasicConfigVersion-SameMajorVersion.cmake.in
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+# This is a basic file for the new style find_package() search mode,
+# i.e. Config-mode.
+# It is used by WriteBasicConfigVersionFile.cmake as input file for configure_file()
+# to create a version-file which can be installed along a config.cmake file.
+#
+# The created file sets PACKAGE_VERSION_EXACT if the current version string and
+# the requested version string are exactly the same and it sets
+# PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
+# but only if the requested major version is the same as the current one.
+# The variable CVF_VERSION must be set before calling configure_file().
+
+
+set(PACKAGE_VERSION "@CVF_VERSION@")
+
+# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
+if(NOT "${CMAKE_SIZEOF_VOID_P}" STREQUAL "@CMAKE_SIZEOF_VOID_P@")
+ math(EXPR installedBits "@CMAKE_SIZEOF_VOID_P@ * 8")
+ set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
+ set(PACKAGE_VERSION_COMPATIBLE FALSE)
+else()
+
+ if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}" )
+ set(PACKAGE_VERSION_COMPATIBLE FALSE)
+ else()
+
+ if("@CVF_VERSION@" MATCHES "^([0-9]+)\\.")
+ set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
+ else()
+ set(CVF_VERSION_MAJOR "@CVF_VERSION@")
+ endif()
+
+ if("${PACKAGE_FIND_VERSION_MAJOR}" STREQUAL "${CVF_VERSION_MAJOR}")
+ set(PACKAGE_VERSION_COMPATIBLE TRUE)
+ else()
+ set(PACKAGE_VERSION_COMPATIBLE FALSE)
+ endif()
+
+ if( "${PACKAGE_FIND_VERSION}" STREQUAL "${PACKAGE_VERSION}")
+ set(PACKAGE_VERSION_EXACT TRUE)
+ endif()
+ endif()
+
+endif()