configure: Detect SSL_COMP_free_compression_methods() by linking

Fixes using libressl.
dovecot · Jun 29, 2016 · be2be31 · be2be31
1 parent e1295b9
commit be2be31
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git 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
@@ -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();