ENH: Always imply CLEAN_DIRECT_OUTPUT target prop

This property was left from before CMake always linked using full path
library names for targets it builds.  In order to safely link with
"-lfoo" we needed to avoid having both shared and static libraries in
the build tree for targets that switch on BUILD_SHARED_LIBS.  This meant
cleaning both shared and static names before creating the library, which
led to the creation of CLEAN_DIRECT_OUTPUT to disable the behavior.

Now that we always link with a full path we do not need to clean old
library names left from an alternate setting of BUILD_SHARED_LIBS.  This
change removes the CLEAN_DIRECT_OUTPUT property and instead uses its
behavior always.  It removes some complexity from cmTarget internally.

1 files changed, 0 insertions, 7 deletions

diff --git a/Source/cmSetTargetPropertiesCommand.h b/Source/cmSetTargetPropertiesCommand.h
index 78429d2..05adfcc 100644
--- a/Source/cmSetTargetPropertiesCommand.h
+++ b/Source/cmSetTargetPropertiesCommand.h
@@ -148,13 +148,6 @@ public:
         "VS_SCC_PROJECTNAME, VS_SCC_LOCALPATH, VS_SCC_PROVIDER can be set "
         "to add support for source control bindings in a  Visual Studio "
         "project file.\n"
-        "When a library is built CMake by default generates code to remove "
-        "any existing library using all possible names.  This is needed "
-        "to support libraries that switch between STATIC and SHARED by "
-        "a user option.  However when using OUTPUT_NAME to build a static "
-        "and shared library of the same name using different logical target "
-        "names the two targets will remove each other's files.  This can be "
-        "prevented by setting the CLEAN_DIRECT_OUTPUT property to 1.\n"
         "The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are the "
         "old way to specify CMake scripts to run before and after "
         "installing a target.  They are used only when the old "