add_library: Disallow invalid signatures for INTERFACE_LIBRARY.

Document the valid signatures. Add a test for the IMPORTED GLOBAL
signature.

1 files changed, 89 insertions, 0 deletions

diff --git a/Tests/RunCMake/interface_library/invalid_signature-stderr.txt b/Tests/RunCMake/interface_library/invalid_signature-stderr.txt
new file mode 100644
index 0000000..701586a
--- /dev/null
+++ b/Tests/RunCMake/interface_library/invalid_signature-stderr.txt
@@ -0,0 +1,89 @@
+CMake Error at invalid_signature.cmake:2 \(add_library\):
+  add_library INTERFACE library requires no source arguments.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:3 \(add_library\):
+  add_library INTERFACE library specified with conflicting/multiple types.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:4 \(add_library\):
+  add_library INTERFACE library specified with conflicting/multiple types.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:5 \(add_library\):
+  add_library INTERFACE library specified with conflicting/multiple types.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:6 \(add_library\):
+  add_library INTERFACE library specified with conflicting/multiple types.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:7 \(add_library\):
+  add_library INTERFACE library specified with conflicting/multiple types.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:8 \(add_library\):
+  add_library INTERFACE library specified with conflicting/multiple types.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:9 \(add_library\):
+  add_library INTERFACE library specified with conflicting STATIC type.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:10 \(add_library\):
+  add_library INTERFACE library specified with conflicting SHARED type.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:11 \(add_library\):
+  add_library INTERFACE library specified with conflicting MODULE type.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:12 \(add_library\):
+  add_library INTERFACE library specified with conflicting OBJECT type.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:13 \(add_library\):
+  add_library INTERFACE library specified with conflicting UNKNOWN type.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:14 \(add_library\):
+  add_library INTERFACE library specified with conflicting ALIAS type.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:15 \(add_library\):
+  add_library INTERFACE library specified with conflicting ALIAS type.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:16 \(add_library\):
+  add_library INTERFACE library specified with conflicting/multiple types.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:17 \(add_library\):
+  add_library INTERFACE library may not be used with EXCLUDE_FROM_ALL.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:18 \(add_library\):
+  add_library INTERFACE library may not be used with EXCLUDE_FROM_ALL.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
++
+CMake Error at invalid_signature.cmake:20 \(add_library\):
+  add_library INTERFACE library requires no source arguments.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)