From 8959c6b791676a77b6432e5090490730020471e2 Mon Sep 17 00:00:00 2001
From: Oswald Buddenhagen <ossi@users.sf.net>
Date: Tue, 10 Sep 2019 13:14:43 +0200
Subject: [PATCH] fix libcrypto detection in openssl 1.1+ without pkg-config

CRYPTO_lock() was removed. test for X509_cmp() instead, which we
actually use.

inspired by report from FX <coudert@users.sourceforge.net>.
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 233901c..66ce71a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -94,7 +94,7 @@ if test "x$ob_cv_with_ssl" != xno; then
     sav_LDFLAGS=$LDFLAGS
     LDFLAGS="$LDFLAGS $SSL_LDFLAGS"
     AC_CHECK_LIB(dl, dlopen, [LIBDL=-ldl])
-    AC_CHECK_LIB(crypto, CRYPTO_lock, [LIBCRYPTO=-lcrypto])
+    AC_CHECK_LIB(crypto, X509_cmp, [LIBCRYPTO=-lcrypto])
     AC_CHECK_LIB(ssl, SSL_connect,
                  [SSL_LIBS="-lssl $LIBCRYPTO $LIBDL" have_ssl_paths=yes])
     LDFLAGS=$sav_LDFLAGS