fix build with openssl 3.0

backport-libserf-1.3.9-errgetfunc.patch

@@ -0,0 +1,13 @@
+--- serf-1.3.9/buckets/ssl_buckets.c.errgetfunc
++++ serf-1.3.9/buckets/ssl_buckets.c
+@@ -1204,6 +1204,10 @@
+     }
+ }
+ 
++#ifndef ERR_GET_FUNC
++#define ERR_GET_FUNC(ec) (0)
++#endif
++
+ static int ssl_need_client_cert(SSL *ssl, X509 **cert, EVP_PKEY **pkey)
+ {
+     serf_ssl_context_t *ctx = SSL_get_app_data(ssl);

libserf.spec

@@ -3,7 +3,7 @@
 
 Name:           libserf
 Version:        1.3.9
-Release:        15
+Release:        16
 Summary:        High-Performance Asynchronous HTTP Client Library
 License:        ASL 2.0
 URL:            https://serf.apache.org/
@@ -13,6 +13,7 @@ BuildRequires:  apr-devel, apr-util-devel, krb5-devel, openssl-devel
 
 Patch0:         %{name}-norpath.patch
 Patch1:         %{name}-python3.patch
+Patch2:         backport-%{name}-1.3.9-errgetfunc.patch
 
 %description
 The serf library is a C-based HTTP client library built upon the Apache 
@@ -69,6 +70,12 @@ export LD_LIBRARY_PATH=%{buildroot}%{_libdir}
 %doc README CHANGES design-guide.txt
 
 %changelog
+* Wed Feb 01 2023 gaihuiying <eaglegai@163.com> - 1.3.9-16
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:fix build with openssl 3.0
+
 * Sat Oct 22 2022 gaihuiying <eaglegai@163.com> - 1.3.9-15
 - Type:bugfix
 - ID:NA