configure: Detect SSL_COMP_free_compression_methods() by linking

Fixes using libressl.
dovecot · Jun 28, 2016 · f390486 · f390486
1 parent 61d57ef
commit f390486
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/m4/ssl.m4 b/m4/ssl.m4
@@ -34,6 +34,9 @@ AC_DEFUN([DOVECOT_SSL], [
       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
@@ -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();