$OpenBSD$

openbsd has a bogus version in openssl.pc

Index: configure.ac
--- configure.ac.orig
+++ configure.ac
@@ -592,7 +592,7 @@ else
 	LIBS="${LIBS} -lssl -lcrypto"
 	AC_DEFINE([__SSLMITM],[],[Define to enable SSL MITM ])
 	AC_DEFINE([__SSLCERT],[],[Define to enable SSL CERT ])
-	PKG_CHECK_MODULES([OPENSSL],[ openssl >= 1.0.1])
+	PKG_CHECK_MODULES([OPENSSL],[openssl])
 fi],
 [
 	AC_MSG_RESULT(no)
