Remove INTERFACE build targets.

Commit b04f3b9a (Create make rules for INTERFACE_LIBRARY
targets., 2013-08-21) extended the makefile generator to create
build targets for INTERFACE_LIBRARY targets. No other generators
were extended with this feature.

This conflicts with the feature of whitelisting of target properties
read from INTERFACE_LIBRARY targets. The INTERFACE_* properties
of the INTERFACE_LIBRARY may legitimately contain TARGET_PROPERTY
generator expressions for reading properties from the 'head target'.
The 'head target' would be the INTERFACE_LIBRARY itself when creating
the build rules for it, which means that non-whitelisted properties
would be read.

3 files changed, 21 insertions, 0 deletions

diff --git a/Tests/InterfaceLibrary/CMakeLists.txt b/Tests/InterfaceLibrary/CMakeLists.txt
index 53aeb03..8154ced 100644
--- a/Tests/InterfaceLibrary/CMakeLists.txt
+++ b/Tests/InterfaceLibrary/CMakeLists.txt
@@ -13,3 +13,17 @@ add_subdirectory(libsdir)
 
 add_executable(sharedlibtestexe sharedlibtestexe.cpp)
 target_link_libraries(sharedlibtestexe shared_iface)
+
+add_library(broken EXCLUDE_FROM_ALL broken.cpp)
+
+add_library(iface_broken INTERFACE)
+# This is not a dependency, so broken will not be built (and the error in
+# it will not be hit)
+target_link_libraries(iface_broken INTERFACE broken)
+
+add_library(iface_whitelist INTERFACE)
+# The target property CUSTOM will never be evaluated on the INTERFACE library.
+target_link_libraries(iface_whitelist INTERFACE $<$<BOOL:$<TARGET_PROPERTY:CUSTOM>>:irrelevant>)
+
+add_executable(exec_whitelist dummy.cpp)
+target_link_libraries(exec_whitelist iface_whitelist)
diff --git a/Tests/InterfaceLibrary/broken.cpp b/Tests/InterfaceLibrary/broken.cpp
new file mode 100644
index 0000000..1fd1041
--- /dev/null
+++ b/Tests/InterfaceLibrary/broken.cpp
@@ -0,0 +1,2 @@
+
+#error Broken
diff --git a/Tests/InterfaceLibrary/dummy.cpp b/Tests/InterfaceLibrary/dummy.cpp
new file mode 100644
index 0000000..341aaaf
--- /dev/null
+++ b/Tests/InterfaceLibrary/dummy.cpp
@@ -0,0 +1,5 @@
+
+int main(int, char **)
+{
+  return 0;
+}