doxygen-native: fix compile error

It fails to compile doxygen-native when /usr/bin/python is a link to
python3 on build host:

| Failed to import the site module
| Traceback (most recent call last):
|   File "/usr/lib64/python3.6/site.py", line 564, in <module>
|     main()
|   File "/usr/lib64/python3.6/site.py", line 550, in main
|     known_paths = addusersitepackages(known_paths)
|   File "/usr/lib64/python3.6/site.py", line 282, in addusersitepackages
|     user_site = getusersitepackages()
|   File "/usr/lib64/python3.6/site.py", line 258, in getusersitepackages
|     user_base = getuserbase() # this will also set USER_BASE
|   File "/usr/lib64/python3.6/site.py", line 248, in getuserbase
|     USER_BASE = get_config_var('userbase')
|   File "/usr/lib64/python3.6/sysconfig.py", line 604, in get_config_var
|     return get_config_vars().get(name)
|   File "/usr/lib64/python3.6/sysconfig.py", line 553, in get_config_vars
|     _init_posix(_CONFIG_VARS)
|   File "/usr/lib64/python3.6/sysconfig.py", line 424, in _init_posix
|     _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
| ModuleNotFoundError: No module named '_sysconfigdata'

Replace find_package PythonInterp with Python3 to fix this issue that
it uses python3 from python3-native. And it also replaces the result
variable PYTHON_EXECUTABLE with Python3_EXECUTABLE.

This patch is only needded by doxygen-native.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

0 files changed, 0 insertions, 0 deletions