ObjFW  Check-in [4557cfb743]

	])
	AS_IF([test x"$enable_static" = x"yes" -o x"$enable_shared" = x"no"], [
		AC_SUBST(ENCODINGS_A, "encodings.a")
		AC_SUBST(ENCODINGS_ENCODINGS_A, "encodings/encodings.a")
	])
])

AC_CHECK_FUNCS(sigaction)

AC_CHECK_FUNCS(arc4random random, break)

AC_CHECK_LIB(dl, dlopen, LIBS="$LIBS -ldl")
AC_CHECK_HEADERS_ONCE(dlfcn.h)
case "$host_os" in
	netbsd*)
		dnl dladdr exists on NetBSD, but it is completely broken.

#ifdef OF_NINTENDO_DS
# define asm __asm__
# include <nds.h>
# undef asm
#endif

#ifdef HAVE_SIGACTION
# ifndef SA_RESTART
#  define SA_RESTART 0
# endif
#endif

@interface OFApplication ()
- (instancetype)of_init OF_METHOD_FAMILY(init);
- (void)of_setArgumentCount: (int *)argc
	  andArgumentValues: (char **[])argv;
#ifdef OF_WINDOWS
- (void)of_setArgumentCount: (int)argc
      andWideArgumentValues: (wchar_t *[])argv;

- (id <OFApplicationDelegate>)delegate
{
	return _delegate;
}

- (void)setDelegate: (id <OFApplicationDelegate>)delegate
{
#ifdef HAVE_SIGACTION
	struct sigaction sa = { .sa_flags = SA_RESTART };
	sigemptyset(&sa.sa_mask);

# define REGISTER_SIGNAL(sig)						\
	if ([delegate respondsToSelector:				\
	    @selector(applicationDidReceive##sig)]) {			\
		_##sig##Handler = (void (*)(id, SEL))[(id)delegate	\
		    methodForSelector:					\
		    @selector(applicationDidReceive##sig)];		\
									\
		sa.sa_handler = handle##sig;				\
	} else								\
		sa.sa_handler = SIG_DFL;				\
									\
	OF_ENSURE(sigaction(sig, &sa, NULL) == 0);
#else
# define REGISTER_SIGNAL(sig)						\
	if ([delegate respondsToSelector:				\
	    @selector(applicationDidReceive##sig)]) {			\
		_##sig##Handler = (void (*)(id, SEL))[(id)delegate	\
		    methodForSelector:					\
		    @selector(applicationDidReceive##sig)];		\
		signal(sig, handle##sig);				\
	} else								\
		signal(sig, (void (*)(int))SIG_DFL);
#endif

	_delegate = delegate;

	REGISTER_SIGNAL(SIGINT)
#ifdef SIGHUP
	REGISTER_SIGNAL(SIGHUP)
#endif