Index: src/linklib/linklib.m
==================================================================
--- src/linklib/linklib.m
+++ src/linklib/linklib.m
@@ -20,19 +20,22 @@
 #import "ObjFW.h"
 #import "amiga-library.h"
 #import "macros.h"
 
 #include <proto/exec.h>
+#define USE_INLINE_STDARG
+#include <proto/intuition.h>
 
 struct ObjFWBase;
 
 #import "inline.h"
 
 #include <errno.h>
 #include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdarg.h>
 
 #if defined(OF_AMIGAOS_M68K)
 # include <stabs.h>
 # define SYM(name) __asm__("_" name)
 #elif defined(OF_MORPHOS)
@@ -364,11 +367,11 @@
 	if ((ObjFWBase = OpenLibrary(OBJFW_AMIGA_LIB, OBJFW_LIB_MINOR)) == NULL)
 		error("Failed to open " OBJFW_AMIGA_LIB " version %lu!",
 		    OBJFW_LIB_MINOR);
 
 	if (!glue_of_init(1, &libc, __sF))
-		error("Failed to initialize " OBJFWRT_AMIGA_LIB "!", 0);
+		error("Failed to initialize " OBJFW_AMIGA_LIB "!", 0);
 
 	initialized = true;
 }
 
 static void __attribute__((__used__))
@@ -440,18 +443,29 @@
 of_log(OFConstantString *format, ...)
 {
 	va_list arguments;
 
 	va_start(arguments, format);
-	glue_of_logv(format, arguments);
+	of_logv(format, arguments);
 	va_end(arguments);
 }
 
 void
 of_logv(OFConstantString *format, va_list arguments)
 {
+#ifdef OF_MORPHOS
+	/* The generated code does not work with va_list, so do it manually. */
+	__asm__ __volatile__ (
+	    "mr		%%r12, %0"
+	    :: "r"(ObjFWBase)
+	);
+
+	((void (*)(OFConstantString *, va_list))*(void **)(ObjFWBase - 76))(
+	    format, arguments);
+#else
 	glue_of_logv(format, arguments);
+#endif
 }
 
 int
 of_application_main(int *argc, char ***argv,
     id <OFApplicationDelegate> delegate)

Index: src/morphos-clib.h
==================================================================
--- src/morphos-clib.h
+++ src/morphos-clib.h
@@ -6,11 +6,11 @@
 uint32_t *glue_of_hash_seed_ref(void);
 OFStdIOStream **glue_of_stdin_ref(void);
 OFStdIOStream **glue_of_stdout_ref(void);
 OFStdIOStream **glue_of_stderr_ref(void);
 void glue_of_logv(OFConstantString *format, va_list arguments);
-int glue_of_application_main(int *argc, char ***argv, id <OFApplicationDelegate> delegate);
+int glue_of_application_main(int *argc, char ***argv, id delegate);
 const char *glue_of_http_request_method_to_string(of_http_request_method_t method);
 of_http_request_method_t glue_of_http_request_method_from_string(OFString *string);
 OFString *glue_of_http_status_code_to_string(short code);
 size_t glue_of_sizeof_type_encoding(const char *type);
 size_t glue_of_alignof_type_encoding(const char *type);

Index: src/runtime/linklib/linklib.m
==================================================================
--- src/runtime/linklib/linklib.m
+++ src/runtime/linklib/linklib.m
@@ -21,10 +21,11 @@
 #import "amiga-library.h"
 #import "macros.h"
 #import "private.h"
 
 #include <proto/exec.h>
+#define USE_INLINE_STDARG
 #include <proto/intuition.h>
 
 struct ObjFWRTBase;
 
 #import "inline.h"