Fix issue #218 by having configure check whether the 3 resolver functions start with a __ prefix instead of having the code depend on the GLIBC version number.
Also rename the hex_to_string array in include/dh.h since OpenSSL 3.0 started complaining that the array conflicts with an OpenSSL function.
Fix issue #218 by having configure check whether the 3 resolver functions start with a
__prefix instead of having the code depend on the GLIBC version number.Also rename the
hex_to_stringarray ininclude/dh.hsince OpenSSL 3.0 started complaining that the array conflicts with an OpenSSL function.