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ENH: Improve docs of OBJECT_DEPENDS property 

Specify exactly what the value of the property should contain and the
resulting behavior.  Note alternatives for a common out-dated usage.
This commit is contained in:
Brad King 2008-09-22 09:42:27 -04:00
parent 3e21316f59
commit 85961d44c3
1 changed files with 16 additions and 4 deletions
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18
Source/cmSourceFile.cxx
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@ -508,9 +508,21 @@ void cmSourceFile::DefineProperties(cmake *cm)
cm->DefineProperty
("OBJECT_DEPENDS", cmProperty::SOURCE_FILE,
"Additional dependencies.",
"Additional dependencies that should be checked as part of "
"building this source file.");
"Additional files on which a compiled object file depends.",
"Specifies a semicolon-separated list of full-paths to files on which "
"any object files compiled from this source file depend. "
"An object file will be recompiled if any of the named files is newer "
"than it.\n"
"This property need not be used to specify the dependency of a "
"source file on a generated header file that it includes. "
"Although the property was originally introduced for this purpose, it "
"is no longer necessary. "
"If the generated header file is created by a custom command in the "
"same target as the source file, the automatic dependency scanning "
"process will recognize the dependency. "
"If the generated header file is created by another target, an "
"inter-target dependency should be created with the add_dependencies "
"command (if one does not already exist due to linking relationships).");
cm->DefineProperty
("OBJECT_OUTPUTS", cmProperty::SOURCE_FILE,