# HG changeset patch
# Parent  b13da8c3e99081cb92ab226d2c512241a82cd0d5
disable run-time check for OpenSSL ABI by version number as that is not a
reliable indicator of ABI changes and doesn't make much sense in a
distribution package

diff --git a/configure.ac b/configure.ac
index 42ffd95..20a1884 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4878,6 +4878,19 @@ AC_ARG_WITH([bsd-auth],
 	]
 )
 
+# Whether we are using distribution (Open)SSL, so no runtime checks are necessary
+DISTRO_SSL=no
+AC_ARG_WITH([distro-ssl],
+	[  --with-distro-ssl       Disable runtime OpenSSL version checks (good for distributions)],
+	[
+		if test "x$withval" != "xno" ; then
+			AC_DEFINE([DISTRO_SSL], [1],
+                      [Define if you are using distribution SSL library and don;t expect its API/ABI to change])
+			DISTRO_SSL=yes
+		fi
+	]
+)
+
 # Where to place sshd.pid
 piddir=/var/run
 # make sure the directory exists
diff --git a/entropy.c b/entropy.c
index f8b9f42..4957b23 100644
--- a/entropy.c
+++ b/entropy.c
@@ -223,11 +223,13 @@ seed_rng(void)
 	/* Initialise libcrypto */
 	ssh_libcrypto_init();
 
+#ifndef DISTRO_SSL
 	if (!ssh_compatible_openssl(OPENSSL_VERSION_NUMBER,
 	    OpenSSL_version_num()))
 		fatal("OpenSSL version mismatch. Built against %lx, you "
 		    "have %lx", (u_long)OPENSSL_VERSION_NUMBER,
 		    OpenSSL_version_num());
+#endif
 
 #ifndef OPENSSL_PRNG_ONLY
 	if (RAND_status() == 1)