Index: src/exceptions/OFException.m
==================================================================
--- src/exceptions/OFException.m
+++ src/exceptions/OFException.m
@@ -33,10 +33,11 @@
 #if defined(_WIN32) && defined(OF_HAVE_SOCKETS)
 # include <errno.h>
 # include <winerror.h>
 #endif
 
+#ifdef HAVE_DWARF_EXCEPTIONS
 struct _Unwind_Context;
 typedef enum {
 	_URC_OK		  = 0,
 	_URC_END_OF_STACK = 5
 }_Unwind_Reason_Code;
@@ -46,35 +47,36 @@
 	uint_fast8_t i;
 };
 
 extern _Unwind_Reason_Code _Unwind_Backtrace(
     _Unwind_Reason_Code(*)(struct _Unwind_Context*, void*), void*);
-#if defined(__arm__) || defined(__ARM__)
+# if defined(__arm__) || defined(__ARM__)
 extern int _Unwind_VRS_Get(struct _Unwind_Context*, int, uint32_t, int, void*);
-#else
+# else
 extern uintptr_t _Unwind_GetIP(struct _Unwind_Context*);
-#endif
+# endif
 
 static _Unwind_Reason_Code
 backtrace_callback(struct _Unwind_Context *ctx, void *data)
 {
 	struct backtrace_ctx *bt = data;
 
 	if (bt->i < OF_BACKTRACE_SIZE) {
-#if defined(__arm__) || defined(__ARM__)
+# if defined(__arm__) || defined(__ARM__)
 		uintptr_t ip;
 
 		_Unwind_VRS_Get(ctx, 0, 15, 0, &ip);
 		bt->backtrace[bt->i++] = (void*)(ip & ~1);
-#else
+# else
 		bt->backtrace[bt->i++] = (void*)_Unwind_GetIP(ctx);
-#endif
+# endif
 		return _URC_OK;
 	}
 
 	return _URC_END_OF_STACK;
 }
+#endif
 
 #if defined(_WIN32) && defined(OF_HAVE_SOCKETS)
 int
 of_wsaerr_to_errno(int wsaerr)
 {
@@ -107,10 +109,11 @@
 + (instancetype)exception
 {
 	return [[[self alloc] init] autorelease];
 }
 
+#ifdef HAVE_DWARF_EXCEPTIONS
 - init
 {
 	struct backtrace_ctx ctx;
 
 	self = [super init];
@@ -119,25 +122,27 @@
 	ctx.i = 0;
 	_Unwind_Backtrace(backtrace_callback, &ctx);
 
 	return self;
 }
+#endif
 
 - (OFString*)description
 {
 	return [OFString stringWithFormat:
 	    @"An exception of type %@ occurred!", [self class]];
 }
 
 - (OFArray*)backtrace
 {
+#ifdef HAVE_DWARF_EXCEPTIONS
 	OFMutableArray *backtrace = [OFMutableArray array];
 	void *pool = objc_autoreleasePoolPush();
 	uint_fast8_t i;
 
 	for (i = 0; i < OF_BACKTRACE_SIZE && _backtrace[i] != NULL; i++) {
-#ifdef HAVE_DLADDR
+# ifdef HAVE_DLADDR
 		Dl_info info;
 
 		if (dladdr(_backtrace[i], &info)) {
 			ptrdiff_t offset = (char*)_backtrace[i] -
 			    (char*)info.dli_saddr;
@@ -149,17 +154,20 @@
 			    [OFString stringWithFormat: @"%p <%s+%td> at %s",
 							_backtrace[i],
 							info.dli_sname, offset,
 							info.dli_fname]];
 		} else
-#endif
+# endif
 			[backtrace addObject:
 			    [OFString stringWithFormat: @"%p", _backtrace[i]]];
 	}
 
 	objc_autoreleasePoolPop(pool);
 
 	[backtrace makeImmutable];
 
 	return backtrace;
+#else
+	return nil;
+#endif
 }
 @end