From be2be317de8059c135bea0ec698045f0f7475d6e Mon Sep 17 00:00:00 2001
From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Wed, 29 Jun 2016 00:37:09 +0300
Subject: [PATCH] configure: Detect SSL_COMP_free_compression_methods() by
 linking

Fixes using libressl.
---
 configure.ac                                  | 3 +++
 src/lib-ssl-iostream/dovecot-openssl-common.c | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 39b0c86abe..e3283d0ee3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1692,6 +1692,9 @@ if test $want_openssl != no && test $have_ssl = no; then
     AC_CHECK_LIB(ssl, SSL_get_servername, [
       AC_DEFINE(HAVE_SSL_GET_SERVERNAME,, [Build with TLS hostname support])
     ],, $SSL_LIBS)
+    AC_CHECK_LIB(ssl, SSL_COMP_free_compression_methods, [
+      AC_DEFINE(HAVE_SSL_COMP_FREE_COMPRESSION_METHODS,, [Build with SSL_COMP_free_compression_methods() support])
+    ],, $SSL_LIBS)
   fi
 fi
 AM_CONDITIONAL(BUILD_OPENSSL, test "$have_openssl" = "yes")
diff --git a/src/lib-ssl-iostream/dovecot-openssl-common.c b/src/lib-ssl-iostream/dovecot-openssl-common.c
index 2e1b8a03c3..8e54ec7445 100644
--- a/src/lib-ssl-iostream/dovecot-openssl-common.c
+++ b/src/lib-ssl-iostream/dovecot-openssl-common.c
@@ -71,7 +71,7 @@ bool dovecot_openssl_common_global_unref(void)
 #if OPENSSL_VERSION_NUMBER < 0x10001000L
 	OBJ_cleanup();
 #endif
-#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+#ifdef HAVE_SSL_COMP_FREE_COMPRESSION_METHODS
 	SSL_COMP_free_compression_methods();
 #endif
 	ENGINE_cleanup();
-- 
2.47.3