Fix the case where cmake --build failed with two project cmds in one file.

This adds a test that uses two project commands in the same CMakeLists.txt
file.  It also adds a fix so that cmake --build will work in that case.
The fix sets the name of the last project command in the top level
CMakeLists.txt in the cache variable CMAKE_PROJECT_NAME.  This variable
is used by cmake --build to find the project name.

4 files changed, 23 insertions, 6 deletions

diff --git a/Tests/CMakeBuildTest.cmake.in b/Tests/CMakeBuildTest.cmake.in
index 9c3002b..a8bb750 100644
--- a/Tests/CMakeBuildTest.cmake.in
+++ b/Tests/CMakeBuildTest.cmake.in
@@ -32,21 +32,21 @@ set(CMAKE_CONFIGURATION_TYPES @CMAKE_CONFIGURATION_TYPES@)
 # run the executable out of the Debug directory if there 
 # are configuration types
 if(CMAKE_CONFIGURATION_TYPES)
-  set(RUN_TEST "@CMAKE_BUILD_TEST_BINARY_DIR@/Debug/COnly")
+  set(RUN_TEST "@CMAKE_BUILD_TEST_BINARY_DIR@/Debug/@CMAKE_BUILD_TEST_EXE@")
 else(CMAKE_CONFIGURATION_TYPES)
-  set(RUN_TEST "@CMAKE_BUILD_TEST_BINARY_DIR@/COnly")
+  set(RUN_TEST "@CMAKE_BUILD_TEST_BINARY_DIR@/@CMAKE_BUILD_TEST_EXE@")
 endif(CMAKE_CONFIGURATION_TYPES)
 # run the test results
 message("running [${RUN_TEST}]")
 execute_process(COMMAND "${RUN_TEST}" RESULT_VARIABLE RESULT)
 if(RESULT)
-  message(FATAL_ERROR "Error running test COnly")
+  message(FATAL_ERROR "Error running test @CMAKE_BUILD_TEST_EXE@")
 endif(RESULT)
 
-# build it again with clean and only COnly target
+# build it again with clean and only @CMAKE_BUILD_TEST_EXE@ target
 execute_process(COMMAND "${CMAKE_COMMAND}" 
   --build "@CMAKE_BUILD_TEST_BINARY_DIR@" --config Debug 
-  --clean-first --target COnly
+  --clean-first --target @CMAKE_BUILD_TEST_EXE@
   RESULT_VARIABLE RESULT)
 if(RESULT)
   message(FATAL_ERROR "Error running cmake --build")
@@ -55,5 +55,5 @@ endif(RESULT)
 # run it again after clean 
 execute_process(COMMAND "${RUN_TEST}" RESULT_VARIABLE RESULT)
 if(RESULT)
-  message(FATAL_ERROR "Error running test COnly after clean ")
+  message(FATAL_ERROR "Error running test @CMAKE_BUILD_TEST_EXE@ after clean ")
 endif(RESULT)
diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 1851f7a..903bb52 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -220,11 +220,21 @@ IF(BUILD_TESTING)
 
   SET(CMAKE_BUILD_TEST_SOURCE_DIR "${CMake_SOURCE_DIR}/Tests/COnly")
   SET(CMAKE_BUILD_TEST_BINARY_DIR "${CMake_BINARY_DIR}/Tests/CMakeBuildCOnly")
+  SET(CMAKE_BUILD_TEST_EXE COnly)
   CONFIGURE_FILE("${CMake_SOURCE_DIR}/Tests/CMakeBuildTest.cmake.in"
     "${CMake_BINARY_DIR}/Tests/CMakeBuildTest.cmake" @ONLY)
   ADD_TEST(CMakeBuildTest ${CMAKE_CMAKE_COMMAND} -P
     "${CMake_BINARY_DIR}/Tests/CMakeBuildTest.cmake")
   LIST(APPEND TEST_BUILD_DIRS ${CMAKE_BUILD_TEST_BINARY_DIR})
+  # now do it again for a project that has two project commands
+  SET(CMAKE_BUILD_TEST_SOURCE_DIR "${CMake_SOURCE_DIR}/Tests/DoubleProject")
+  SET(CMAKE_BUILD_TEST_BINARY_DIR "${CMake_BINARY_DIR}/Tests/DoubleProject")
+  SET(CMAKE_BUILD_TEST_EXE just_silly)
+  CONFIGURE_FILE("${CMake_SOURCE_DIR}/Tests/CMakeBuildTest.cmake.in"
+    "${CMake_BINARY_DIR}/Tests/CMakeBuildDoubleProjectTest.cmake" @ONLY)
+  ADD_TEST(CMakeDoubleProject ${CMAKE_CMAKE_COMMAND} -P
+    "${CMake_BINARY_DIR}/Tests/CMakeBuildDoubleProjectTest.cmake")
+  LIST(APPEND TEST_BUILD_DIRS ${CMAKE_BUILD_TEST_BINARY_DIR})
 
   ADD_TEST_MACRO(Module.CheckTypeSize CheckTypeSize)
 
diff --git a/Tests/DoubleProject/CMakeLists.txt b/Tests/DoubleProject/CMakeLists.txt
new file mode 100644
index 0000000..02a6275
--- /dev/null
+++ b/Tests/DoubleProject/CMakeLists.txt
@@ -0,0 +1,3 @@
+project(dumb)
+project(dumber)
+add_executable(just_silly silly.c)
diff --git a/Tests/DoubleProject/silly.c b/Tests/DoubleProject/silly.c
new file mode 100644
index 0000000..f8b643a
--- /dev/null
+++ b/Tests/DoubleProject/silly.c
@@ -0,0 +1,4 @@
+int main()
+{
+  return 0;
+}