/usr/i686-w64-mingw32/include/sec_api/ is in mingw-w64-i686-dev 2.0.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/i686-w64-mingw32/include/sec_api/conio_s.h
/usr/i686-w64-mingw32/include/sec_api/crtdbg_s.h
/usr/i686-w64-mingw32/include/sec_api/io_s.h
/usr/i686-w64-mingw32/include/sec_api/mbstring_s.h
/usr/i686-w64-mingw32/include/sec_api/search_s.h
/usr/i686-w64-mingw32/include/sec_api/stdio_s.h
/usr/i686-w64-mingw32/include/sec_api/stdlib_s.h
/usr/i686-w64-mingw32/include/sec_api/stralign_s.h
/usr/i686-w64-mingw32/include/sec_api/string_s.h
/usr/i686-w64-mingw32/include/sec_api/sys/
/usr/i686-w64-mingw32/include/sec_api/sys/timeb_s.h
/usr/i686-w64-mingw32/include/sec_api/tchar_s.h
/usr/i686-w64-mingw32/include/sec_api/time_s.h
/usr/i686-w64-mingw32/include/sec_api/wchar_s.h