[Cmake-commits] CMake branch, next, updated. v2.8.4-1844-g2cab5e1

[Brad King]

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The branch, next has been updated
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       via  0ece8f79ed480152fa70ca7dea7b6625386a63e3 (commit)
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- Log -----------------------------------------------------------------
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=2cab5e146886bbaf7f1d31ddc5b02b1ae0b604a3
commit 2cab5e146886bbaf7f1d31ddc5b02b1ae0b604a3
Merge: 1a0e63d 0ece8f7
Author:     Brad King <brad.king at kitware.com>
AuthorDate: Thu Jun 30 08:45:38 2011 -0400
Commit:     CMake Topic Stage <kwrobot at kitware.com>
CommitDate: Thu Jun 30 08:45:38 2011 -0400

    Merge topic 'doc-custom-command-multiple-targets-issue-12311' into next
    
    0ece8f7 Document caveat of custom commands in multiple targets (#12311)


http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=0ece8f79ed480152fa70ca7dea7b6625386a63e3
commit 0ece8f79ed480152fa70ca7dea7b6625386a63e3
Author:     Brad King <brad.king at kitware.com>
AuthorDate: Thu Jun 30 08:38:00 2011 -0400
Commit:     Brad King <brad.king at kitware.com>
CommitDate: Thu Jun 30 08:43:32 2011 -0400

    Document caveat of custom commands in multiple targets (#12311)
    
    A common mistake when using custom commands is to list the output of a
    command in multiple targets that may build in parallel.  Warn against
    this case in the documentation and suggest a better approach.

diff --git a/Source/cmAddCustomCommandCommand.h b/Source/cmAddCustomCommandCommand.h
index 47b542c..05e7dc2 100644
--- a/Source/cmAddCustomCommandCommand.h
+++ b/Source/cmAddCustomCommandCommand.h
@@ -75,6 +75,10 @@ public:
       "A target created in the same directory (CMakeLists.txt file) that "
       "specifies any output of the custom command as a source file is given "
       "a rule to generate the file using the command at build time.  "
+      "Do not list the output in more than one independent target that may "
+      "build in parallel or the two instances of the rule may conflict "
+      "(instead use add_custom_target to drive the command and make the "
+      "other targets depend on that one).  "
       "If an output name is a relative path it will be interpreted "
       "relative to the build tree directory corresponding to the current "
       "source directory. "

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

Summary of changes:
 Source/cmAddCustomCommandCommand.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)


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