/usr/include/crtmpserver/common/platform/ is in crtmpserver-dev 1.0~dfsg-5.
This file is owned by root:root, with mode 0o755.
..
/usr/include/crtmpserver/common/platform/android/
/usr/include/crtmpserver/common/platform/android/androidplatform.h
/usr/include/crtmpserver/common/platform/android/max.h
/usr/include/crtmpserver/common/platform/baseplatform.h
/usr/include/crtmpserver/common/platform/dfreebsd/
/usr/include/crtmpserver/common/platform/dfreebsd/dfreebsdplatform.h
/usr/include/crtmpserver/common/platform/dfreebsd/max.h
/usr/include/crtmpserver/common/platform/endianess/
/usr/include/crtmpserver/common/platform/endianess/big_endian_byte_aligned.h
/usr/include/crtmpserver/common/platform/endianess/big_endian_short_aligned.h
/usr/include/crtmpserver/common/platform/endianess/endianness.h
/usr/include/crtmpserver/common/platform/endianess/little_endian_byte_aligned.h
/usr/include/crtmpserver/common/platform/endianess/little_endian_short_aligned.h
/usr/include/crtmpserver/common/platform/freebsd/
/usr/include/crtmpserver/common/platform/freebsd/freebsdplatform.h
/usr/include/crtmpserver/common/platform/freebsd/max.h
/usr/include/crtmpserver/common/platform/linux/
/usr/include/crtmpserver/common/platform/linux/linuxplatform.h
/usr/include/crtmpserver/common/platform/linux/max.h
/usr/include/crtmpserver/common/platform/openbsd/
/usr/include/crtmpserver/common/platform/openbsd/max.h
/usr/include/crtmpserver/common/platform/openbsd/openbsdplatform.h
/usr/include/crtmpserver/common/platform/osx/
/usr/include/crtmpserver/common/platform/osx/osxplatform.h
/usr/include/crtmpserver/common/platform/platform.h
/usr/include/crtmpserver/common/platform/solaris/
/usr/include/crtmpserver/common/platform/solaris/solarisplatform.h
/usr/include/crtmpserver/common/platform/windows/
/usr/include/crtmpserver/common/platform/windows/max.h
/usr/include/crtmpserver/common/platform/windows/win32platform.h