ObjFW  Diff

		AS_IF([test x"$OBJCFLAGS" = x""], [
			OBJCFLAGS="-O0"
		])
		OBJCFLAGS="$OBJCFLAGS -noixemul"
		OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS -noixemul"
		CPPFLAGS="$CPPFLAGS -D__NO_NET_API"
		LDFLAGS="$LDFLAGS -noixemul"
		LIBS="$LIBS -ldebug"

		enable_files="yes"	# Required for reading ENV:
		enable_shared="no"
		supports_amiga_lib="yes"

		AS_IF([test x"$enable_amiga_lib" != x"no"], [
			AC_SUBST(OBJFW_AMIGA_LIB, objfw68k.library)
			AC_SUBST(OBJFWRT_AMIGA_LIB, objfwrt68k.library)
			AC_SUBST(SFDC_TARGET, m68k-amigaos)
			AC_SUBST(SFD_FILE, amigaos3.sfd)
			AC_SUBST(SFDC_INLINE_H, inline.h)
			dnl For 68000, GCC emits calls to helper functions that
			dnl do not work properly in a library.
			t="-mcpu=68020 -fbaserel32 -noixemul"
			AC_SUBST(AMIGA_LIB_CFLAGS, "$t -ffreestanding")
			t="$t -resident32 -nostartfiles -nodefaultlibs"
			t="$t -ldebug -lc"
			AC_SUBST(AMIGA_LIB_LDFLAGS, $t)

		])

		AC_SUBST(LIBBASES_M, libbases.m)
		;;
	powerpc-*-amigaos*)
		CPPFLAGS="$CPPFLAGS -D__USE_INLINE__"

		enable_files="yes"	# Required for reading ENV:
		enable_shared="no"

		AC_SUBST(LIBBASES_M, libbases.m)
		;;
	*-morphos*)
		AS_IF([test x"$OBJCFLAGS" = x""], [
			OBJCFLAGS="-O2 -g"
		])
		OBJCFLAGS="$OBJCFLAGS -noixemul"
		OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS -noixemul"
		LDFLAGS="$LDFLAGS -noixemul"
		LIBS="$LIBS -ldebug"

		enable_files="yes"	# Required for reading ENV:
		enable_shared="no"
		supports_amiga_lib="yes"
		check_pedantic="no"	# Breaks generated inlines

		AS_IF([test x"$enable_amiga_lib" != x"no"], [
			AC_SUBST(OBJFW_AMIGA_LIB, objfw.library)
			AC_SUBST(OBJFWRT_AMIGA_LIB, objfwrt.library)
			AC_SUBST(CVINCLUDE_INLINE_H, inline.h)
			t="-mresident32 -ffreestanding -noixemul"
			AC_SUBST(AMIGA_LIB_CFLAGS, $t)
			t="-mresident32 -nostartfiles -nodefaultlibs -noixemul"
			t="$t -laboxstubs -labox -lmath -ldebug -lc"
			AC_SUBST(AMIGA_LIB_LDFLAGS, $t)
		])

		AC_SUBST(LIBBASES_M, libbases.m)
		;;
	*-msdosdjgpp*)
		enable_shared="no"

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Wunreachable-code"
	AC_MSG_CHECKING(whether -Wunreachable-code can be used)
	AC_COMPILE_IFELSE([
		AC_LANG_SOURCE([[
			#include <stdlib.h>

			struct objc_selector;
			typedef const struct objc_selector *SEL;

			#ifdef __has_attribute
			# if __has_attribute(objc_root_class)
			__attribute__((__objc_root_class__))
			# endif
			#endif
			@interface Object
			- (void)doesNotRecognizeSelector: (SEL)selector
			#ifdef __clang__
			    __attribute__((__noreturn__))
			#endif
			    ;
			- (void)dealloc;
			@end

			@interface Foo: Object
			@end

			void
			test(void)
			{
				if (sizeof(int) == 4)
					__asm__ ("");
				else if (sizeof(int) == 8)
					__asm__ ("");
				else
					abort();
			}

			/*
			 * Unfortunately, this cannot be shorter, as it only
			 * works when it is used inside a macro.
			 */
			#ifdef __clang__
			# define OF_DEALLOC_UNSUPPORTED			\
				[self doesNotRecognizeSelector: _cmd];	\

			# define OF_DEALLOC_UNSUPPORTED			\
				[self doesNotRecognizeSelector: _cmd];	\
									\
				abort();				\
									\
				[super dealloc];
			#endif

			@implementation Foo
			- (void)dealloc
			{
				OF_DEALLOC_UNSUPPORTED
			}
			@end
		]])