Added KDE3 version of kdesvn

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kdesvn@1103685 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 28 insertions, 0 deletions

diff --git a/cmakemodules/MacroEnsureVersion.cmake b/cmakemodules/MacroEnsureVersion.cmake
new file mode 100644
index 0000000..091152d
--- /dev/null
+++ b/cmakemodules/MacroEnsureVersion.cmake
@@ -0,0 +1,28 @@
+# LGPL-v2, David Faure
+#
+# This macro compares version numbers of the form "x.y.z"
+# MACRO_ENSURE_VERSION( ${FOO_MIN_VERSION} ${FOO_VERSION_FOUND} FOO_VERSION_OK)
+# will set FOO_VERSIN_OK to true if FOO_VERSION_FOUND >= FOO_MIN_VERSION
+#
+MACRO(MACRO_ENSURE_VERSION requested_version found_version var_too_old)
+
+    # parse the parts of the version string
+    STRING(REGEX REPLACE "([0-9]+)\\.[0-9]+\\.[0-9]+" "\\1" req_major_vers "${requested_version}")
+    STRING(REGEX REPLACE "[0-9]+\\.([0-9])+\\.[0-9]+" "\\1" req_minor_vers "${requested_version}")
+    STRING(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+)" "\\1" req_patch_vers "${requested_version}")
+   
+    STRING(REGEX REPLACE "([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" found_major_vers "${found_version}")
+    STRING(REGEX REPLACE "[0-9]+\\.([0-9])+\\.[0-9]+.*" "\\1" found_minor_vers "${found_version}")
+    STRING(REGEX REPLACE "[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" found_patch_vers "${found_version}")
+   
+    # compute an overall version number which can be compared at once
+    MATH(EXPR req_vers_num "${req_major_vers}*10000 + ${req_minor_vers}*100 + ${req_patch_vers}")
+    MATH(EXPR found_vers_num "${found_major_vers}*10000 + ${found_minor_vers}*100 + ${found_patch_vers}")
+
+    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)