1
AC_LIB_HAVE_LINKFLAGS(crypto,,
2
[#include <openssl/md5.h>],
7
AS_IF([test "x$ac_cv_libcrypto" = "xno"],
8
AC_MSG_WARN([MD5 not found in crypto lib: not building md5 plugin. On Debian this is found in libssl-dev. On RedHat, it is in openssl-devel.]))