Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -59,12 +59,13 @@
 			AC_SUBST(SFDC_INLINE_H, inline.h)
 			dnl For 68000, GCC emits calls to helper functions that
 			dnl do not work properly in a library.
 			t="-mcpu=68020 -fbaserel -noixemul"
 			AC_SUBST(AMIGA_LIB_CFLAGS, "$t -ffreestanding")
-			AC_SUBST(AMIGA_LIB_LDFLAGS,
-				"$t -resident -nostartfiles -ldebug -lc")
+			t="$t -resident -nostartfiles -nodefaultlibs"
+			t="$t -ldebug -lc"
+			AC_SUBST(AMIGA_LIB_LDFLAGS, $t)
 		])
 
 		AC_SUBST(LIBBASES_M, libbases.m)
 		;;
 	powerpc-*-amigaos*)

Index: src/runtime/amiga-library.m
==================================================================
--- src/runtime/amiga-library.m
+++ src/runtime/amiga-library.m
@@ -45,10 +45,17 @@
 int
 _start()
 {
 	return -1;
 }
+
+#ifdef OF_AMIGAOS_M68K
+void
+__init_eh(void)
+{
+}
+#endif
 
 struct ObjFWRTBase {
 	struct Library library;
 	void *segList;
 	struct ObjFWRTBase *parent;
@@ -594,15 +601,21 @@
     va_list args)
 {
 	return libc.vsnprintf(str, size, fmt, args);
 }
 #endif
+
+int
+atexit(void (*function)(void))
+{
+	return libc.atexit(function);
+}
 
 void
-abort(void)
+exit(int status)
 {
-	libc.abort();
+	libc.exit(status);
 
 	OF_UNREACHABLE
 }
 
 #pragma GCC diagnostic push

Index: src/runtime/linklib/linklib.m
==================================================================
--- src/runtime/linklib/linklib.m
+++ src/runtime/linklib/linklib.m
@@ -115,11 +115,12 @@
 #endif
 		.get_errno = get_errno,
 #ifdef OF_AMIGAOS_M68K
 		.vsnprintf = vsnprintf,
 #endif
-		.abort = abort,
+		.atexit = atexit,
+		.exit = exit,
 	};
 
 	if (initialized)
 		return;
 

Index: src/runtime/misc.m
==================================================================
--- src/runtime/misc.m
+++ src/runtime/misc.m
@@ -84,10 +84,12 @@
 
 		EasyRequest(NULL, &easy, NULL, (ULONG)message);
 
 		CloseLibrary(IntuitionBase);
 	}
+
+	exit(EXIT_FAILURE);
 # undef BUF_LEN
 #else
 	va_list args;
 
 	va_start(args, format);
@@ -96,10 +98,11 @@
 	vfprintf(stderr, format, args);
 	vfprintf(stderr, "\n");
 	fflush(stderr);
 
 	va_end(args);
-#endif
+
 	abort();
+#endif
 
 	OF_UNREACHABLE
 }

Index: src/runtime/private.h
==================================================================
--- src/runtime/private.h
+++ src/runtime/private.h
@@ -257,11 +257,12 @@
 	int *_Nonnull (*_Nonnull get_errno)(void);
 # ifdef OF_AMIGAOS_M68K
 	int (*_Nonnull vsnprintf)(char *restrict _Nonnull str, size_t size,
 	    const char *_Nonnull restrict fmt, va_list args);
 # endif
-	void (*_Nonnull abort)(void);
+	int (*_Nonnull atexit)(void (*_Nonnull)(void));
+	void (*_Nonnull exit)(int);
 };
 #endif
 
 #ifdef OBJC_COMPILING_AMIGA_LIBRARY
 # if defined(__MORPHOS__)