TLL: Don't populate old link interface if CMP0022 is NEW.

Always populate the INTERFACE_LINK_LIBRARIES for interface
entries. Don't populate the old interface properties
matching (IMPORTED_)?LINK_INTERFACE_LIBRARIES(_<CONFIG>)?
if CMP0022 is NEW.

Because the INTERFACE_LINK_LIBRARIES property is now populated by
the target_link_libraries when operating on a static library,
make an equivalent change which populates the property with
the same value when the old link_libraries() command is used. This
silences the policy warning in that case.

1 files changed, 15 insertions, 8 deletions

diff --git a/Source/cmTargetLinkLibrariesCommand.h b/Source/cmTargetLinkLibrariesCommand.h
index c683016..ca651d0 100644
--- a/Source/cmTargetLinkLibrariesCommand.h
+++ b/Source/cmTargetLinkLibrariesCommand.h
@@ -92,7 +92,7 @@ public:
       "When this target is linked into another target then the libraries "
       "linked to this target will appear on the link line for the other "
       "target too.  "
-      "See the LINK_INTERFACE_LIBRARIES target property to override the "
+      "See the INTERFACE_LINK_LIBRARIES target property to override the "
       "set of transitive link dependencies for a target.  "
       "Calls to other signatures of this command may set the property "
       "making any libraries linked exclusively by this signature private."
@@ -112,14 +112,19 @@ public:
       "  target_link_libraries(<target> LINK_INTERFACE_LIBRARIES\n"
       "                        [[debug|optimized|general] <lib>] ...)\n"
       "The LINK_INTERFACE_LIBRARIES mode appends the libraries "
-      "to the LINK_INTERFACE_LIBRARIES and its per-configuration equivalent "
-      "target properties instead of using them for linking.  "
-      "Libraries specified as \"debug\" are appended to the "
+      "to the INTERFACE_LINK_LIBRARIES target property instead of using them "
+      "for linking.  If policy CMP0022 is not NEW, then this mode also "
+      "appends libraries to the LINK_INTERFACE_LIBRARIES and its "
+      "per-configuration equivalent.  "
+      "Libraries specified as \"debug\" are wrapped in a generator "
+      "expression to correspond to debug builds.  If policy CMP0022 is not "
+      "NEW, the libraries are also appended to the "
       "LINK_INTERFACE_LIBRARIES_DEBUG property (or to the properties "
       "corresponding to configurations listed in the DEBUG_CONFIGURATIONS "
       "global property if it is set).  "
       "Libraries specified as \"optimized\" are appended to the "
-      "LINK_INTERFACE_LIBRARIES property.  "
+      "INTERFACE_LINK_LIBRARIES property.  If policy CMP0022 is not NEW, "
+      "they are also appended to the LINK_INTERFACE_LIBRARIES property.  "
       "Libraries specified as \"general\" (or without any keyword) are "
       "treated as if specified for both \"debug\" and \"optimized\"."
       "\n"
@@ -131,9 +136,11 @@ public:
       "The LINK_PUBLIC and LINK_PRIVATE modes can be used to specify both "
       "the link dependencies and the link interface in one command.  "
       "Libraries and targets following LINK_PUBLIC are linked to, and are "
-      "made part of the LINK_INTERFACE_LIBRARIES. Libraries and targets "
-      "following LINK_PRIVATE are linked to, but are not made part of the "
-      "LINK_INTERFACE_LIBRARIES.  "
+      "made part of the INTERFACE_LINK_LIBRARIES.  If policy CMP0022 is not "
+      "NEW, they are also made part of the LINK_INTERFACE_LIBRARIES.  "
+      "Libraries and targets following LINK_PRIVATE are linked to, but are "
+      "not made part of the INTERFACE_LINK_LIBRARIES (or "
+      "LINK_INTERFACE_LIBRARIES)."
       "\n"
       "The library dependency graph is normally acyclic (a DAG), but in the "
       "case of mutually-dependent STATIC libraries CMake allows the graph "