The latest version of clamav relies on OpenSSL, but libclamav doesn’t automatically intialize that connection. This patch we threw together for Mail-ClamAV-0.29 fixes the problem by calling cl_initialize_crypto() first.
*** ClamAV.pm.orig 2014-10-28 16:27:30.000000000 -0500
--- ClamAV.pm 2014-10-28 16:26:48.000000000 -0500
***************
*** 205,210 ****
--- 205,215 ----
if (stat(path, &st) != 0)
croak("%s does not exist: %s\n", path, strerror(errno));
+ if ((status = cl_initialize_crypto()) != CL_SUCCESS) {
+ error(status);
+ return &PL_sv_undef;
+ }
+
if ((status = cl_init(CL_INIT_DEFAULT)) != CL_SUCCESS) {
error(status);
return &PL_sv_undef;
