[CMake] diagnosing "could not COPY_FILE" during configure

[Simmons, Aaron]

I'm trying to use CMake with an admittedly odd toolchain (Adobe's Alchemy project) and it's failing at configure time while detecting the C/C++ ABI info with the error "CMake Error: Could not COPY_FILE"

I'm sure this is a bug in the toolchain and not CMake, but I'm not sure how to diagnose it.  How would I go about debugging this?  What is CMake doing at this step?  Is there a "verbose" mode for configuration so I can see the params its passing the gcc?  Here is the full error:

        -- The C compiler identification is unknown
        -- The CXX compiler identification is unknown
        -- Check for working C compiler: /home/asimmons/alchemy-ubuntu-v0.5a/achacks/gcc
        -- Check for working C compiler: /home/asimmons/alchemy-ubuntu-v0.5a/achacks/gcc -- works
        -- Detecting C compiler ABI info
        CMake Error: Could not COPY_FILE.
          OutputFile: ''
            copyFile: '/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeDetermineCompilerABI_C.bin'

        Unable to find executable for try_compile: tried "/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeTmp/cmTryCompileExec" and "/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeTmp/Debug/cmTryCompileExec" and "/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeTmp/Development/cmTryCompileExec".

        -- Detecting C compiler ABI info - done
        CMake Error at /usr/share/cmake-2.8/Modules/CMakeDetermineCompilerABI.cmake:40 (FILE):
          file STRINGS file
          "/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeDetermineCompilerABI_C.bin"
          cannot be read.
        Call Stack (most recent call first):
          /usr/share/cmake-2.8/Modules/CMakeTestCCompiler.cmake:71 (CMAKE_DETERMINE_COMPILER_ABI)
          CMakeLists.txt:9 (project)


        -- Check for working CXX compiler: /home/asimmons/alchemy-ubuntu-v0.5a/achacks/g++
        -- Check for working CXX compiler: /home/asimmons/alchemy-ubuntu-v0.5a/achacks/g++ -- works
        -- Detecting CXX compiler ABI info
        CMake Error: Could not COPY_FILE.
          OutputFile: ''
            copyFile: '/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeDetermineCompilerABI_CXX.bin'

        Unable to find executable for try_compile: tried "/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeTmp/cmTryCompileExec" and "/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeTmp/Debug/cmTryCompileExec" and "/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeTmp/Development/cmTryCompileExec".

        -- Detecting CXX compiler ABI info - done
        CMake Error at /usr/share/cmake-2.8/Modules/CMakeDetermineCompilerABI.cmake:40 (FILE):
          file STRINGS file
          "/home/asimmons/Development/aaronSandBox/alchemy-test/.build/CMakeFiles/CMakeDetermineCompilerABI_CXX.bin"
          cannot be read.
        Call Stack (most recent call first):
          /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake:64 (CMAKE_DETERMINE_COMPILER_ABI)
          CMakeLists.txt:9 (project)


        -- Configuring incomplete, errors occurred!