Index: src/exceptions/OFException.m
==================================================================
--- src/exceptions/OFException.m
+++ src/exceptions/OFException.m
@@ -75,10 +75,11 @@
 # if defined(__arm__) || defined(__ARM__)
 extern int _Unwind_VRS_Get(struct _Unwind_Context*, int, uint32_t, int, void*);
 # else
 extern uintptr_t _Unwind_GetIP(struct _Unwind_Context*);
 # endif
+#endif
 
 #if !defined(HAVE_STRERROR_R) && defined(OF_HAVE_THREADS)
 static of_mutex_t mutex;
 
 static void __attribute__((__constructor__))
@@ -203,10 +204,11 @@
 #endif
 
 	return ret;
 }
 
+#ifdef HAVE_DWARF_EXCEPTIONS
 static _Unwind_Reason_Code
 backtrace_callback(struct _Unwind_Context *ctx, void *data)
 {
 	struct backtrace_ctx *bt = data;