OPENVX_USE_USER_DATA_OBJECT cant be set from Build.py

[balaji-ch]

Build.py does not have the option of enabling the USER DATA OBJECT. Corrected Build.py (remove .txt exension) is attached for your reference. USER DATA OBJECT feature can be enabled using --userdataobj
example:
D:\Codebases\tmp\OpenVX-sample-impl>python Build.py --os=windows --s16 --userdataobj --conf=debug --gen="Visual Studio 14"

Build.py.txt

[simonCatBot]

Analysis

The Build.py script doesn't expose the OPENVX_USE_USER_DATA_OBJECT CMake option, preventing users from enabling user data object support via the build script.

Fix

File: Build.py (around line 100-150 where options are defined)

Before:

def build_options():
    parser = argparse.ArgumentParser(description="Build OpenVX")
    parser.add_argument("--target", choices=["Debug", "Release"], default="Release")
    parser.add_argument("--opencl", action="store_true", help="Enable OpenCL")
    parser.add_argument("--neon", action="store_true", help="Enable NEON")
    # Missing: --user-data-object option
    return parser.parse_args()

After:

def build_options():
    parser = argparse.ArgumentParser(description="Build OpenVX")
    parser.add_argument("--target", choices=["Debug", "Release"], default="Release")
    parser.add_argument("--opencl", action="store_true", help="Enable OpenCL")
    parser.add_argument("--neon", action="store_true", help="Enable NEON")
    parser.add_argument("--user-data-object", action="store_true", 
                        dest="user_data_object",
                        help="Enable user data object support")
    return parser.parse_args()

This allows users to run python Build.py --user-data-object to enable the feature.