/usr/share/mingw-w64/include/sec_api/ is in mingw-w64-common 4.0.4-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/mingw-w64/include/sec_api/conio_s.h
/usr/share/mingw-w64/include/sec_api/crtdbg_s.h
/usr/share/mingw-w64/include/sec_api/io_s.h
/usr/share/mingw-w64/include/sec_api/mbstring_s.h
/usr/share/mingw-w64/include/sec_api/memory_s.h
/usr/share/mingw-w64/include/sec_api/search_s.h
/usr/share/mingw-w64/include/sec_api/stdio_s.h
/usr/share/mingw-w64/include/sec_api/stdlib_s.h
/usr/share/mingw-w64/include/sec_api/stralign_s.h
/usr/share/mingw-w64/include/sec_api/string_s.h
/usr/share/mingw-w64/include/sec_api/sys/
/usr/share/mingw-w64/include/sec_api/sys/timeb_s.h
/usr/share/mingw-w64/include/sec_api/tchar_s.h
/usr/share/mingw-w64/include/sec_api/wchar_s.h