[Cmake-commits] CMake branch, next, updated. v2.8.9-106-gd61b2c2

[David Cole]

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The branch, next has been updated
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       via  0eaaa863ed38ce95727e9743ca63a86ca2a7638e (commit)
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- Log -----------------------------------------------------------------
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=d61b2c2d10c16472ec86d8da08f44b5c367a8fcb
commit d61b2c2d10c16472ec86d8da08f44b5c367a8fcb
Merge: 3f90348 0eaaa86
Author:     David Cole <david.cole at kitware.com>
AuthorDate: Wed Aug 15 22:44:46 2012 -0400
Commit:     CMake Topic Stage <kwrobot at kitware.com>
CommitDate: Wed Aug 15 22:44:46 2012 -0400

    Merge topic 'clarify-if-is_newer_than-docs' into next
    
    0eaaa86 CMake: Clarify the documentation for if(f1 IS_NEWER_THAN f2)


http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=0eaaa863ed38ce95727e9743ca63a86ca2a7638e
commit 0eaaa863ed38ce95727e9743ca63a86ca2a7638e
Author:     David Cole <david.cole at kitware.com>
AuthorDate: Wed Aug 15 19:52:21 2012 -0400
Commit:     David Cole <david.cole at kitware.com>
CommitDate: Wed Aug 15 19:52:21 2012 -0400

    CMake: Clarify the documentation for if(f1 IS_NEWER_THAN f2)
    
    ...comparison operator in the IF command. In the event of
    a tie, we intentionally return "true" so that dependent
    build operations are guaranteed to occur until one file
    is definitively newer than the other file.
    
    A tie means we're not sure, so return true to be on the
    safe side.

diff --git a/Source/cmIfCommand.h b/Source/cmIfCommand.h
index 4893a17..0a1fe06 100644
--- a/Source/cmIfCommand.h
+++ b/Source/cmIfCommand.h
@@ -149,7 +149,12 @@ public:
       "  if(file1 IS_NEWER_THAN file2)\n"
       "True if file1 is newer than file2 or if one of the two files "
       "doesn't exist. "
-      "Behavior is well-defined only for full paths.\n"
+      "Behavior is well-defined only for full paths. "
+      "If the file time stamps are exactly the same, an "
+      "IS_NEWER_THAN comparison returns true, so that any dependent "
+      "build operations will occur in the event of a tie. "
+      "This includes the case of passing the same file name for both "
+      "file1 and file2.\n"
       "  if(IS_DIRECTORY directory-name)\n"
       "True if the given name is a directory.  "
       "Behavior is well-defined only for full paths.\n"

-----------------------------------------------------------------------

Summary of changes:
 Source/cmIfCommand.h |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)


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