target_link_libraries: Add PUBLIC/PRIVATE/INTERFACE keyword signature

Add a new signature to help populate INTERFACE_LINK_LIBRARIES and
LINK_LIBRARIES cleanly in a single call.  Add policy CMP0023 to control
whether the keyword signatures can be mixed with uses of the plain
signatures on the same target.

1 files changed, 16 insertions, 0 deletions

diff --git a/Tests/RunCMake/target_link_libraries/CMP0023-NEW-2-stderr.txt b/Tests/RunCMake/target_link_libraries/CMP0023-NEW-2-stderr.txt
new file mode 100644
index 0000000..d27686d
--- /dev/null
+++ b/Tests/RunCMake/target_link_libraries/CMP0023-NEW-2-stderr.txt
@@ -0,0 +1,16 @@
+CMake Error at CMP0023-NEW-2.cmake:11 \(target_link_libraries\):
+  Policy CMP0023 is not set: Plain and keyword target_link_libraries
+  signatures cannot be mixed.  Run "cmake --help-policy CMP0023" for policy
+  details.  Use the cmake_policy command to set the policy and suppress this
+  warning.
+
+  The plain signature for target_link_libraries has already been used with
+  the target "foo".  All uses of target_link_libraries with a target must be
+  either all-keyword or all-plain.
+
+  The uses of the plain signature are here:
+
+   \* CMP0023-NEW-2.cmake:10 \(target_link_libraries\)
+
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)