I just tried to compile tinycompress with the new C compiler clang-14.
It said:
cplay.c:153:34: warning: & has lower precedence than !=; != will be evaluated first [-Wparentheses]
Source code is
if ((buf[0] != 0xff) || (buf[1] & 0xf0 != 0xf0))
Suggest new code:
if ((buf[0] != 0xff) || ((buf[1] & 0xf0) != 0xf0))