Index: src/exceptions/OFException.m
==================================================================
--- src/exceptions/OFException.m
+++ src/exceptions/OFException.m
@@ -33,11 +33,11 @@
 #if defined(_WIN32) && defined(OF_HAVE_SOCKETS)
 # include <errno.h>
 # include <winerror.h>
 #endif
 
-#ifdef HAVE_DWARF_EXCEPTIONS
+#if defined(HAVE_DWARF_EXCEPTIONS) || defined(OBJC_ZEROCOST_EXCEPTIONS)
 struct _Unwind_Context;
 typedef enum {
 	_URC_OK		  = 0,
 	_URC_END_OF_STACK = 5
 }_Unwind_Reason_Code;
@@ -109,11 +109,11 @@
 + (instancetype)exception
 {
 	return [[[self alloc] init] autorelease];
 }
 
-#ifdef HAVE_DWARF_EXCEPTIONS
+#if defined(HAVE_DWARF_EXCEPTIONS) || defined(OBJC_ZEROCOST_EXCEPTIONS)
 - init
 {
 	struct backtrace_ctx ctx;
 
 	self = [super init];
@@ -132,11 +132,11 @@
 	    @"An exception of type %@ occurred!", [self class]];
 }
 
 - (OFArray*)backtrace
 {
-#ifdef HAVE_DWARF_EXCEPTIONS
+#if defined(HAVE_DWARF_EXCEPTIONS) || defined(OBJC_ZEROCOST_EXCEPTIONS)
 	OFMutableArray *backtrace = [OFMutableArray array];
 	void *pool = objc_autoreleasePoolPush();
 	uint_fast8_t i;
 
 	for (i = 0; i < OF_BACKTRACE_SIZE && _backtrace[i] != NULL; i++) {