Some platforms define NULL as ((void *)0).  Unfortunately, a void* can't be used as a function pointer according the the standards.  Use a 0 instead and there will be no trouble.
Some platforms define NULL as ((void *)0).  Unfortunately, a void*
can't be used as a function pointer according the the standards.  Use
a 0 instead and there will be no trouble.

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl