Add policy CMP0040 to disallow custom commands on missing targets

Tests/RunCMake/CMP0040/CMP0040-NEW-existing-target-result.txt

@@ -0,0 +1 @@
+0

Tests/RunCMake/CMP0040/CMP0040-NEW-existing-target-stderr.txt

@@ -0,0 +1 @@
+^$

Tests/RunCMake/CMP0040/CMP0040-NEW-existing-target.cmake

@@ -0,0 +1,7 @@
+cmake_policy(SET CMP0040 NEW)
+
+add_library(foobar empty.cpp)
+
+add_custom_command(TARGET foobar PRE_BUILD
+  COMMAND "${CMAKE_COMMAND} -E echo hello world"
+)

Tests/RunCMake/CMP0040/CMP0040-NEW-missing-target-result.txt

@@ -0,0 +1 @@
+1

Tests/RunCMake/CMP0040/CMP0040-NEW-missing-target-stderr.txt

@@ -0,0 +1,9 @@
+CMake Error at CMP0040-NEW-missing-target.cmake:3 \(add_custom_command\):
+  Policy CMP0040 is not set: The target in the TARGET signature of
+  add_custom_command\(\) must exist.  Run "cmake --help-policy CMP0040" for
+  policy details.  Use the cmake_policy command to set the policy and
+  suppress this warning.
++
+  The target name "foobar" is unknown in this context.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)

Tests/RunCMake/CMP0040/CMP0040-NEW-missing-target.cmake

@@ -0,0 +1,5 @@
+cmake_policy(SET CMP0040 NEW)
+
+add_custom_command(TARGET foobar PRE_BUILD
+  COMMAND "${CMAKE_COMMAND} -E hello world"
+)

Tests/RunCMake/CMP0040/CMP0040-OLD-existing-target-result.txt

@@ -0,0 +1 @@
+0

Tests/RunCMake/CMP0040/CMP0040-OLD-existing-target-stderr.txt

@@ -0,0 +1 @@
+^$

Tests/RunCMake/CMP0040/CMP0040-OLD-existing-target.cmake

@@ -0,0 +1,7 @@
+cmake_policy(SET CMP0040 OLD)
+
+add_library(foobar empty.cpp)
+
+add_custom_command(TARGET foobar PRE_BUILD
+  COMMAND "${CMAKE_COMMAND} -E echo hello world"
+)

Tests/RunCMake/CMP0040/CMP0040-OLD-missing-target-result.txt

@@ -0,0 +1 @@
+0

Tests/RunCMake/CMP0040/CMP0040-OLD-missing-target-stderr.txt

@@ -0,0 +1 @@
+^$

Tests/RunCMake/CMP0040/CMP0040-OLD-missing-target.cmake

@@ -0,0 +1,5 @@
+cmake_policy(SET CMP0040 OLD)
+
+add_custom_command(TARGET foobar PRE_BUILD
+  COMMAND "${CMAKE_COMMAND} -E echo hello world"
+)

Tests/RunCMake/CMP0040/CMP0040-WARN-missing-target-result.txt

@@ -0,0 +1 @@
+0

Tests/RunCMake/CMP0040/CMP0040-WARN-missing-target-stderr.txt

@@ -0,0 +1,10 @@
+CMake Warning \(dev\) at CMP0040-WARN-missing-target.cmake:2 \(add_custom_command\):
+  Policy CMP0040 is not set: The target in the TARGET signature of
+  add_custom_command\(\) must exist.  Run "cmake --help-policy CMP0040" for
+  policy details.  Use the cmake_policy command to set the policy and
+  suppress this warning.
++
+  The target name "foobar" is unknown in this context.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.

Tests/RunCMake/CMP0040/CMP0040-WARN-missing-target.cmake

@@ -0,0 +1,4 @@
+
+add_custom_command(TARGET foobar PRE_BUILD
+  COMMAND "${CMAKE_COMMAND} -E hello world"
+)

Tests/RunCMake/CMP0040/CMakeLists.txt

@@ -0,0 +1,3 @@
+cmake_minimum_required(VERSION 2.8.12)
+project(${RunCMake_TEST} CXX)
+include(${RunCMake_TEST}.cmake NO_POLICY_SCOPE)

Tests/RunCMake/CMP0040/RunCMakeTest.cmake

@@ -0,0 +1,8 @@
+include(RunCMake)
+
+run_cmake(CMP0040-OLD-missing-target)
+run_cmake(CMP0040-NEW-missing-target)
+run_cmake(CMP0040-WARN-missing-target)
+
+run_cmake(CMP0040-OLD-existing-target)
+run_cmake(CMP0040-NEW-existing-target)

Tests/RunCMake/CMP0040/empty.cpp

@@ -0,0 +1,7 @@
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+int empty()
+{
+  return 0;
+}

Tests/RunCMake/CMakeLists.txt

@@ -59,6 +59,7 @@ add_RunCMake_test(CMP0028)
 add_RunCMake_test(CMP0037)
 add_RunCMake_test(CMP0038)
 add_RunCMake_test(CMP0039)
+add_RunCMake_test(CMP0040)
 add_RunCMake_test(CTest)
 if(UNIX AND "${CMAKE_TEST_GENERATOR}" MATCHES "Unix Makefiles")
   add_RunCMake_test(CompilerChange)