ObjFW  Diff

AC_INIT(ObjFW, 1.2dev, js@nil.im, objfw, https://objfw.nil.im/)
AC_CONFIG_SRCDIR(src)
AC_CONFIG_AUX_DIR(build-aux)
AC_CONFIG_MACRO_DIR(build-aux/m4)

AC_DEFINE(OBJFW_VERSION_MAJOR, 1, [The major version of ObjFW])
AC_DEFINE(OBJFW_VERSION_MINOR, 2, [The minor version of ObjFW])
dnl This may only be set to 1.2 once 1.2 is released
AC_SUBST(BUNDLE_VERSION, 1.1.0)
AC_SUBST(BUNDLE_SHORT_VERSION, 1.1)

for i in configure.ac build-aux/m4/*; do
	AS_IF([test $i -nt configure], [
		AC_MSG_ERROR([$i is newer than configure! Run ./autogen.sh!])
	])
done

	enable_shared="no"
	enable_threads="no"
	enable_sockets="no"
	enable_files="no"
	;;
m68k-*-amigaos*)
	AS_IF([test x"$OBJCFLAGS" = x""], [OBJCFLAGS="-O0 -g"])
	OBJCFLAGS="$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"
	with_tls="no"













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

	enable_files="yes"	# Required for reading ENV:

	OBJCFLAGS="$OBJCFLAGS -noixemul"
	OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS -noixemul"
	LDFLAGS="$LDFLAGS -noixemul"
	LIBS="$LIBS -ldebug"

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











	AC_SUBST(LIBBASES_M, libbases.m)
	;;
*-msdosdjgpp*)
	enable_shared="no"
	enable_threads="no"
	enable_sockets="no"
	;;
*-*-mingw*)
	LDFLAGS="$LDFLAGS -Wl,--allow-multiple-definition"
	LIBS="$LIBS -lversion"

	AC_SUBST(USE_SRCS_WINDOWS, '${SRCS_WINDOWS}')
	;;
*-psp-*)
	AS_IF([test x"$DEVKITPSP" = x""], [
		AC_MSG_ERROR([DEVKITPSP is not set! Please set DEVKITPSP.])

	LIBS="$LIBS -latomic"
	;;
*-*-mint*)
	enable_shared="no"
	enable_threads="no"	# TODO
	with_tls="no"
	;;
*-apple-macos*)
	enable_shared="no"
	enable_threads="no"	# TODO
	enable_sockets="no"	# TODO

	AC_DEFINE(OF_CLASSIC_MACOS, 1,
		[Whether we are compiling for classic macOS])
	;;
esac

AS_IF([test x"$host_os" = x"msdosdjgpp" -a x"$build_os" = x"msdosdjgpp"], [
	dnl Hack to make configure find these on DOS.
	: ${AR:=ar.exe}
	: ${GREP:=grep.exe}
	: ${RANLIB:=ranlib.exe}

	;;
*)
	potential_compilers="clang egcc gcc"
	;;
esac
AC_PROG_OBJC($potential_compilers)
AC_PROG_OBJCPP
AC_PROG_EGREP
AC_PROG_SED
AC_PROG_LN_S

BUILDSYS_CHECK_IOS

AC_ARG_WITH(wii,
	AS_HELP_STRING([--with-wii], [build for Wii]))
AS_IF([test x"$with_wii" = x"yes"], [
	AS_IF([test x"$DEVKITPRO" = x""], [

	enable_files="no"	# TODO
	enable_shared="no"	# TODO
	enable_threads="no"	# TODO
	enable_sockets="no"	# TODO

	AC_DEFINE(OF_WII_U, 1, [Whether we are compiling for Wii U])
	AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map'])
	# Repetition of libraries is required for Wii U, as otherwise it cannot
	# find main. Just moving -lobjfwtest later doesn't work either, as then
	# the linker cannot find ObjFW symbols. So the only solution is to list
	# everything twice, but hide it behind a variable because listing it
	# twice causes a warning on macOS.
	AC_SUBST(WII_U_TESTS_LIBS, '-lobjfwtest ${TESTS_LIBS} ${LIBS}')
])

AC_ARG_WITH(nds,
	AS_HELP_STRING([--with-nds], [build for Nintendo DS]))
AS_IF([test x"$with_nds" = x"yes"], [
	AS_IF([test x"$DEVKITPRO" = x""], [
		AC_MSG_ERROR([DEVKITPRO is not set! Please set DEVKITPRO.])

AX_CHECK_COMPILER_FLAGS(-pipe, [OBJCFLAGS="$OBJCFLAGS -pipe"])
AX_CHECK_COMPILER_FLAGS(-fno-common, [OBJCFLAGS="$OBJCFLAGS -fno-common"])
AX_CHECK_COMPILER_FLAGS(-Xclang -fno-constant-cfstrings, [
	flag="-Xclang -fno-constant-cfstrings"
	OBJCFLAGS="$OBJCFLAGS $flag"
	OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flag"
])

AX_CHECK_COMPILER_FLAGS([-Wsign-compare -Werror],
	[OBJCFLAGS="$OBJCFLAGS -Wsign-compare"])
AS_IF([test x"$with_nds" != x"yes"], [
	AX_CHECK_COMPILER_FLAGS([-Wshadow -Werror],
		[OBJCFLAGS="$OBJCFLAGS -Wshadow"])
])
AX_CHECK_COMPILER_FLAGS([-Wshorten-64-to-32 -Werror],

	;;
esac

AC_ARG_ENABLE(shared,
	AS_HELP_STRING([--disable-shared], [do not build shared library]))
AS_IF([test x"$enable_shared" != x"no"], [
	BUILDSYS_SHARED_LIB
	BUILDSYS_PLUGIN

	AC_SUBST(OBJFW_SHARED_LIB, '${LIB_PREFIX}objfw${LIB_SUFFIX}')
	AC_SUBST(EXCEPTIONS_LIB_A, "exceptions.lib.a")
	AC_SUBST(FORWARDING_LIB_A, "forwarding.lib.a")
	AC_SUBST(LOOKUP_ASM_LIB_A, "lookup-asm.lib.a")

	BUILDSYS_FRAMEWORK([
		AC_SUBST(OBJFW_FRAMEWORK, "ObjFW.framework")
		build_framework="yes"
	])
], [
	AC_DEFINE(OF_NO_SHARED, 1, [Whether no shared library was built])
	AC_SUBST(LIBOBJFW_DEP, "../src/libobjfw.a")
	AC_SUBST(LIBOBJFW_DEP_LVL2, "../../src/libobjfw.a")
])

AS_IF([test x"$build_framework" = x"yes"], [
	TESTS_LIBS="-framework ObjFW \${RUNTIME_FRAMEWORK_LIBS} $TESTS_LIBS"
	TESTS_LIBS="-F../src -F../src/runtime $TESTS_LIBS"
], [
	TESTS_LIBS="\${RUNTIME_LIBS} $TESTS_LIBS"
	TESTS_LIBS="-L../src/runtime $TESTS_LIBS"
	TESTS_LIBS="-L../src -lobjfw $TESTS_LIBS"
])











AC_ARG_ENABLE(static, AS_HELP_STRING([--enable-static], [build static library]))
AS_IF([test x"$enable_shared" = x"no"], [
	enable_static="yes"
])
AS_IF([test x"$enable_static" = x"yes"], [
	AC_SUBST(OBJFW_STATIC_LIB, "libobjfw.a")
	AC_SUBST(EXCEPTIONS_A, "exceptions.a")
	AC_SUBST(FORWARDING_A, "forwarding.a")
	AC_SUBST(LOOKUP_ASM_A, "lookup-asm.a")

	])
])
AC_MSG_RESULT($objc_runtime)

case "$objc_runtime" in
"ObjFW runtime")
	AC_DEFINE(OF_OBJFW_RUNTIME, 1, [Whether we use the ObjFW runtime])
	AC_SUBST(USE_SRCS_TAGGED_POINTERS, '${SRCS_TAGGED_POINTERS}')

	AC_MSG_CHECKING([whether -fobjc-runtime=objfw is supported])

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Xclang -fobjc-runtime=objfw"
	AC_LINK_IFELSE([
		AC_LANG_PROGRAM([

	])

	AC_SUBST(RUNTIME, "runtime")
	AC_CONFIG_FILES(src/runtime/Info.plist)

	AS_IF([test x"$enable_shared" != x"no"], [
		AC_SUBST(OBJFWRT_SHARED_LIB,
			'${LIB_PREFIX}objfwrt${LIB_SUFFIX}')
	])

	AS_IF([test x"$enable_static" = x"yes"], [
		AC_SUBST(OBJFWRT_STATIC_LIB, "libobjfwrt.a")
	])

	AS_IF([test x"$build_framework" = x"yes"], [
		AC_SUBST(OBJFWRT_FRAMEWORK, "ObjFWRT.framework")
		AC_SUBST(RUNTIME_FRAMEWORK_LIBS, "-framework ObjFWRT")
	])








	AC_SUBST(RUNTIME_LIBS, "-lobjfwrt")


	AS_IF([test x"$enable_shared" = x"no"], [

		AC_SUBST(LIBOBJFWRT_DEP, "../src/runtime/libobjfwrt.a")
		AC_SUBST(LIBOBJFWRT_DEP_LVL2, "../../src/runtime/libobjfwrt.a")
	])

	AS_IF([test x"$enable_seluid24" = x"yes"], [
		AC_DEFINE(OF_SELUID24, 1, [Whether to use 24 bit selector UIDs])
	])

	AC_MSG_CHECKING(for exception type)

	AC_EGREP_CPP(egrep_cpp_yes, [

		#ifdef __SEH__
		egrep_cpp_yes

		#endif



	], [


		AC_MSG_RESULT(SEH)
		exception_type="SEH"



		raise_exception="_Unwind_RaiseException"
	], [

		AC_EGREP_CPP(egrep_cpp_yes, [
			#ifdef __USING_SJLJ_EXCEPTIONS__
			egrep_cpp_yes
			#endif
		], [
			AC_MSG_RESULT(SjLj)
			exception_type="SjLj"








			raise_exception="_Unwind_SjLj_RaiseException"













		], [
			AC_MSG_RESULT(DWARF)
			exception_type="DWARF"
			raise_exception="_Unwind_RaiseException"
		])
	])

	AC_SEARCH_LIBS($raise_exception, [c++abi gcc_s gcc unwind], [
		dnl c++abi requires pthread on OpenBSD
		AS_IF([test x"$ac_lib" = x"c++abi"], [LIBS="$LIBS -lpthread"])
	], [
		AC_MSG_ERROR([$raise_exception missing!])

	AC_CHECK_FUNC(objc_autoreleasePoolPush, [], [
		AC_SUBST(RUNTIME_AUTORELEASE_M, "runtime/autorelease.m")
	])
	AC_CHECK_FUNC(objc_constructInstance, [], [
		AC_SUBST(RUNTIME_INSTANCE_M, "runtime/instance.m")
	])
	AC_CHECK_FUNCS(objc_setAssociatedObject, [], [
		AC_SUBST(RUNTIME_ASSOCIATION_M, "runtime/association.m")
	])

	OBJCFLAGS="$old_OBJCFLAGS"
	;;
esac

case "$host_os" in
mint*)

		@end
	], [[
		__weak id foo = [Foo alloc];
		(void)foo;
	]])
], [
	AC_MSG_RESULT(yes)

	AC_SUBST(RUNTIME_ARC_TESTS_M, RuntimeARCTests.m)
], [
	AC_MSG_RESULT(no)
])
OBJCFLAGS="$old_OBJCFLAGS"

AC_C_BIGENDIAN([

AC_CHECK_HEADER(inttypes.h,
	[AC_DEFINE(OF_HAVE_INTTYPES_H, 1, [Whether we have inttypes.h])])

AC_CHECK_HEADER(sys/types.h,
	[AC_DEFINE(OF_HAVE_SYS_TYPES_H, 1, [Whether we have sys/types.h])])




AC_CHECK_HEADER(stdnoreturn.h,
	[AC_DEFINE(OF_HAVE_STDNORETURN_H, 1, [Whether we have stdnoreturn.h])])

AC_CHECK_TYPE(wchar_t)
AC_CHECK_HEADER(wchar.h)

AC_CHECK_SIZEOF(float)
AC_CHECK_SIZEOF(double)
AS_IF([test x"$ac_cv_sizeof_float" != x"4" -o x"$ac_cv_sizeof_double" != x"8"],
	[AC_MSG_ERROR(
		[Floating point implementation does not conform to IEEE 754!])])

AC_MSG_CHECKING(for floating point endianess)
fp_endianess="unknown"
AS_IF([test x"$ac_cv_c_bigendian" != x"universal"], [
	AC_COMPILE_IFELSE([
		AC_LANG_SOURCE([
			double endianess = 2.993700760838795055656993580068609688772747263874402942272934826871811872228512759832626847251963763755836687759498519784550143745834860002945223766052808125982053455555265216112722718870586961456110693379343178124592311441022662940307099598578775368547768968914916965731708568179631324904813506101190853720749196062963892799499230635163056742330563321122389331703618066046034494287335316842529021563862331183541255013987734473643350285400060357711238514186776429325214739886098119655678483017894951556639821088508565036657794343031121375178126860889964700274558728491825977274341798997758923017217660272136611938897932105874133412726223468780517578125e-259;
		])
	], [
		AS_IF([$SED 's/[[^[:print:]]]//g' <conftest.$ac_objext | \
		    $EGREP BigEnd >/dev/null], [
			AC_DEFINE(OF_FLOAT_BIG_ENDIAN, 1,
				[Whether floats are big endian])
			fp_endianess="big endian"
		], [
			AS_IF([$SED 's/[[^[:print:]]]//g' \
			    <conftest.$ac_objext | $EGREP dnEgiB >/dev/null], [
				fp_endianess="little endian"
			])
		])
	])
], [
	fp_endianess="universal"
])

	], [
		AC_DEFINE(HAVE_VFP2, 1, [Whether we have VFP2 or above])
		AC_MSG_RESULT(yes)
	], [
		AC_MSG_RESULT(no)
	])
	;;
aarch64* | arm64*)
	AC_MSG_CHECKING(for bti)
	AC_COMPILE_IFELSE([
		AC_LANG_PROGRAM([], [
			__asm__ __volatile__ ("bti c");
		])
	], [
		AC_DEFINE(HAVE_BTI, 1, [Whether we have bti])
		AC_MSG_RESULT(yes)
	], [
		AC_MSG_RESULT(no)
	])
	;;
i?86 | x86_64)
	AC_CHECK_HEADERS(cet.h)
	;;
esac

AC_CHECK_LIB(m, fmod, LIBS="$LIBS -lm")
AC_CHECK_LIB(complex, creal, TESTS_LIBS="$TESTS_LIBS -lcomplex")

AC_CHECK_FUNCS(strtof truncf)

		AC_CHECK_FUNC(sched_yield, [
			AC_DEFINE(OF_HAVE_SCHED_YIELD, 1,
				[Whether we have sched_yield()])
		])

		AC_CHECK_FUNCS(pthread_attr_getschedpolicy)

		old_OBJCFLAGS="$OBJCFLAGS"
		OBJCFLAGS="$OBJCFLAGS -Werror"
		AC_MSG_CHECKING(for pthread_attr_setinheritsched)
		AC_COMPILE_IFELSE([
			AC_LANG_PROGRAM([
				#include <pthread.h>
			], [
				pthread_attr_setinheritsched(
				    (pthread_attr_t *)-1, 0);
			])
		], [
			AC_MSG_RESULT(yes)
			AC_DEFINE(HAVE_PTHREAD_ATTR_SETINHERITSCHED, 1,
				[Whether we have pthread_attr_setinheritsched])
		], [
			AC_MSG_RESULT(no)
		])
		OBJCFLAGS="$old_OBJCFLAGS"

		AC_CHECK_HEADERS(pthread_np.h, [], [], [#include <pthread.h>])
		AC_CHECK_FUNCS(pthread_set_name_np pthread_setname_np, break)
		;;
	esac

	AC_DEFINE(OF_HAVE_THREADS, 1, [Whether we have threads])

	AC_CHECK_FUNC(symlink, [
		AC_DEFINE(OF_HAVE_SYMLINK, 1, [Whether we have symlink()])
	])
	AC_CHECK_FUNCS([lstat])
	AC_CHECK_MEMBERS([struct stat.st_birthtime], [], [], [
		#include <sys/stat.h>
	])




















])

AC_CHECK_HEADERS(dirent.h)
AC_CHECK_FUNCS([sysconf gmtime_r localtime_r])

case "$host_os" in
amigaos* | morphos*)
	dnl We don't want fcntl() or nanosleep() on AmigaOS / MorphOS, despite
	dnl a symbol existing. The reason is that we cannot use fcntl() for
	dnl sockets and that nanosleep() is yet another function that uses
	dnl errno, so would need to be passed from the linklib.
	;;
*)
	AC_CHECK_HEADERS(fcntl.h)
	AC_CHECK_FUNCS([fcntl nanosleep])
	;;
esac

AC_CHECK_HEADERS(xlocale.h)
AC_CHECK_FUNCS([strtod_l strtof_l asprintf_l uselocale])
AS_IF([test x"$gnu_source" != x"yes" -a \( \
    x"$ac_cv_func_strtod_l" = x"yes" -o x"$ac_cv_func_strtof_l" = x"yes" -o \
    x"$ac_cv_func_asprintf_l" = x"yes" \)], [
	AC_MSG_CHECKING(whether *_l functions need _GNU_SOURCE)
	AC_COMPILE_IFELSE([
		AC_LANG_PROGRAM([
			#include <stdlib.h>

		;;
	esac

	AC_CHECK_HEADER(sys/socket.h, [
		AC_DEFINE(OF_HAVE_SYS_SOCKET_H, 1,
			[Whether we have sys/socket.h])
	])
	AC_CHECK_MEMBERS([struct sockaddr.sa_len], [], [], [
		#ifdef OF_HAVE_SYS_TYPES_H
		# include <sys/types.h>
		#endif
		#ifdef OF_HAVE_SYS_SOCKET_H
		# include <sys/socket.h>
		#endif
		#ifdef _WIN32
		# include <winsock2.h>
		#endif
	])
	AC_CHECK_TYPE([struct sockaddr_storage], [
		AC_DEFINE(OF_HAVE_SOCKADDR_STORAGE, 1,
			[Whether we have struct sockaddr_storage])
	], [], [
		#ifdef OF_HAVE_SYS_TYPES_H
		# include <sys/types.h>
		#endif
		#ifdef OF_HAVE_SYS_SOCKET_H
		# include <sys/socket.h>
		#endif
		#ifdef _WIN32
		# include <winsock2.h>
		#endif
	])

	AC_CHECK_HEADER(netinet/in.h, [
		AC_DEFINE(OF_HAVE_NETINET_IN_H, 1,
			[Whether we have netinet/in.h])
	])
	AC_CHECK_HEADER(netinet/tcp.h, [
		AC_DEFINE(OF_HAVE_NETINET_TCP_H, 1,
			[Whether we have netinet/tcp.h])
	])
	AC_CHECK_HEADER(netinet/sctp.h, [
		AC_DEFINE(OF_HAVE_SCTP, 1, [Whether we have SCTP])
		AC_DEFINE(OF_HAVE_NETINET_SCTP_H, 1,
			[Whether we have netinet/sctp.h])
		AC_SUBST(USE_SRCS_SCTP, '${SRCS_SCTP}')
	])
	AC_CHECK_HEADERS([arpa/inet.h netdb.h sys/sockio.h])
	AC_CHECK_HEADERS([net/if.h], [], [], [
		#ifdef OF_HAVE_SYS_SOCKET_H
		# include <sys/socket.h>
		#endif
	])
	AC_CHECK_HEADERS([net/if_arp.h net/if_dl.h net/if_types.h])
	AC_CHECK_FUNCS([if_indextoname if_nametoindex if_nameindex])
	AC_CHECK_TYPES([struct sockaddr_dl], [], [], [
		#ifdef HAVE_SYS_TYPES_H
		# include <sys/types.h>
		#endif
		#ifdef HAVE_NET_IF_DL_H
		# include <net/if_dl.h>
		#endif
	])
	AC_CHECK_TYPES([struct lifconf], [], [], [
		#ifdef HAVE_NET_IF_H
		# include <net/if.h>
		#endif
	])
	AC_CHECK_MEMBERS([struct ifreq.ifr_hwaddr], [], [], [
		#ifdef HAVE_NET_IF_H
		# include <net/if.h>
		#endif
	])
	AC_CHECK_HEADER(sys/un.h, [
		AC_DEFINE(OF_HAVE_SYS_UN_H, 1, [Whether we have sys/un.h])
	])
	AC_CHECK_MEMBER([struct sockaddr_in6.sin6_addr], [
		AC_EGREP_CPP(egrep_cpp_yes, [
			#ifdef _WIN32
			typedef int BOOL;

		# include <winsock2.h>
		#endif
	])
	AC_CHECK_MEMBER(struct sockaddr_un.sun_path, [
		AC_DEFINE(OF_HAVE_UNIX_SOCKETS, 1,
			[Whether we have UNIX sockets])
		AC_SUBST(USE_SRCS_UNIX_SOCKETS, '${SRCS_UNIX_SOCKETS}')

		AC_CHECK_MEMBERS(struct sockaddr_un.sun_len, [], [], [
			#ifdef OF_HAVE_SYS_TYPES_H
			# include <sys/types.h>
			#endif
			#ifdef OF_HAVE_SYS_UN_H
			# include <sys/un.h>
			#endif
			#ifdef _WIN32
			# include <winsock2.h>
			#endif
			#ifdef HAVE_AFUNIX_H
			# include <afunix.h>
			#endif
		])
	], [], [
		#ifdef OF_HAVE_SYS_TYPES_H
		# include <sys/types.h>
		#endif
		#ifdef OF_HAVE_SYS_UN_H
		# include <sys/un.h>
		#endif

	])

	AC_CHECK_HEADER(netipx/ipx.h, [
		AC_DEFINE(OF_HAVE_NETIPX_IPX_H, 1,
			[Whether we have netipx/ipx.h])
	])
	AC_CHECK_MEMBER(struct sockaddr_ipx.sipx_network, [], [
		AC_CHECK_MEMBER(struct sockaddr_ipx.sa_netnum, [], [
			AC_CHECK_MEMBER(struct sockaddr_ipx.sipx_addr.x_port,
			[], [], [
				#ifdef HAVE_SYS_TYPES_H
				# include <sys/types.h>
				#endif

				#ifdef OF_HAVE_NETIPX_IPX_H
				# include <netipx/ipx.h>
				#endif
			])
		], [
			#ifdef _WIN32
			typedef int BOOL;
			#endif

			#ifdef HAVE_SYS_TYPES_H
			# include <sys/types.h>
			#endif

			#ifdef OF_HAVE_NETIPX_IPX_H
			# include <netipx/ipx.h>
			#endif

			#ifdef _WIN32
			# ifdef __MINGW32__
			#  include <_mingw.h>
			#  ifdef __MINGW64_VERSION_MAJOR
			#   include <winsock2.h>
			#  endif
			# endif
			# include <windows.h>
			# include <wsipx.h>
			#endif
		])
	], [
		#ifdef _WIN32
		typedef int BOOL;
		#endif

		#ifdef HAVE_SYS_TYPES_H
		# include <sys/types.h>
		#endif

		#ifdef OF_HAVE_NETIPX_IPX_H
		# include <netipx/ipx.h>
		#endif

		#ifdef _WIN32
		# ifdef __MINGW32__
		#  include <_mingw.h>
		#  ifdef __MINGW64_VERSION_MAJOR
		#   include <winsock2.h>
		#  endif
		# endif
		# include <windows.h>
		# include <wsipx.h>
		#endif
	])
	AS_IF([test x"$ac_cv_member_struct_sockaddr_ipx_sipx_network" = x"yes" \
	    -o x"$ac_cv_member_struct_sockaddr_ipx_sa_netnum" = x"yes" -o \
	    x"$ac_cv_member_struct_sockaddr_ipx_sipx_addr_x_port" = x"yes"], [
		AC_EGREP_CPP(egrep_cpp_yes, [
			#ifdef _WIN32
			typedef int BOOL;
			#endif

			#ifdef OF_HAVE_SYS_SOCKET_H
			# include <sys/socket.h>

		])
		;;
	esac

	AC_ARG_WITH(tls,
		AS_HELP_STRING([--with-tls], [
			enable TLS support using the specified library
			(yes, openssl, gnutls, securetransport, mbedtls or
			no)]))
	AS_IF([test x"$with_tls" = x""], [with_tls="yes"])
	tls_support="no"

	AS_IF([test x"$with_tls" = x"securetransport" \
	    -o x"$with_tls" = x"yes"], [
		AC_CHECK_HEADERS(Security/SecureTransport.h, [
			old_LIBS="$LIBS"
			LIBS="-framework Security -framework Foundation $LIBS"

			AC_CHECK_FUNC(SSLHandshake, [



				tls_support="Secure Transport"
				TLS_LIBS="-framework Foundation $TLS_LIBS"
				TLS_LIBS="-framework Security $TLS_LIBS"

				AC_SUBST(OF_SECURE_TRANSPORT_TLS_STREAM_M,
					"OFSecureTransportTLSStream.m")

				AC_CHECK_FUNCS(SSLCreateContext)
			], [])

			LIBS="$old_LIBS"
		])
	])


















	AS_IF([test x"$with_tls" = x"openssl" \
	    -o \( x"$with_tls" = x"yes" -a x"$tls_support" = x"no" \)], [
		case "$host_os" in
		morphos*)
			ssl="ssl_shared"
			crypto="crypto_shared"
			;;
		*)
			ssl="ssl"
			crypto="crypto"
			;;
		esac

		AC_CHECK_LIB($ssl, SSL_set1_host, [
			AC_CHECK_HEADER(openssl/ssl.h, [



				tls_support="OpenSSL"
				TLS_LIBS="-l$ssl -l$crypto $TLS_LIBS"

				AC_SUBST(OF_OPENSSL_TLS_STREAM_M,
					"OFOpenSSLTLSStream.m")

				old_LIBS="$LIBS"
				LIBS="$TLS_LIBS $LIBS"
				AC_CHECK_FUNCS(SSL_has_pending)
				LIBS="$old_LIBS"
			])
		], [], [-l$crypto])
	])

	AS_IF([test x"$with_tls" = x"gnutls" \
	    -o \( x"$with_tls" = x"yes" -a x"$tls_support" = x"no" \)], [
		PKG_CHECK_MODULES(gnutls, [gnutls >= 3.5.0], [
			tls_support="GnuTLS"
			TLS_CPPFLAGS="$gnutls_CFLAGS $TLS_CPPFLAGS"
			TLS_LIBS="$gnutls_LIBS $TLS_LIBS"

			AC_SUBST(OF_GNUTLS_TLS_STREAM_M, "OFGnuTLSTLSStream.m")
		], [
			dnl Disable default action-if-not-found, which exits
			dnl configure with an error.
			:
		])
	])

	AS_IF([test x"$with_tls" = x"mbedtls"], [
		AC_CHECK_LIB(mbedtls, mbedtls_net_init, [
			AC_CHECK_HEADER(mbedtls/ssl.h, [
				tls_support="Mbed TLS"
				TLS_LIBS="-lmbedx509 -lmbedcrypto $TLS_LIBS"
				TLS_LIBS="-lmbedtls $TLS_LIBS"

				AC_SUBST(OF_MBEDTLS_TLS_STREAM_M,
					"OFMbedTLSTLSStream.m")
			])
		], [], [-lmbedx509 -lmbedcrypto])
	])

	AS_IF([test x"$tls_support" != x"no"], [
		AC_SUBST(TLS, "tls")
		AC_SUBST(TLS_CPPFLAGS)
		AC_SUBST(TLS_LIBS)
		AC_DEFINE(HAVE_TLS_SUPPORT, 1,
			[Whether we have an implementation for TLS])
		AC_CONFIG_FILES(src/tls/Info.plist)

		OFARC_LIBS="-lobjfwtls $TLS_LIBS $OFARC_LIBS"
		OFHASH_LIBS="-lobjfwtls $TLS_LIBS $OFHASH_LIBS"
		OFHTTP_LIBS="-lobjfwtls $TLS_LIBS $OFHTTP_LIBS"

		AS_IF([test x"$enable_shared" != x"no"], [
			AC_SUBST(OBJFWTLS_SHARED_LIB,
				'${LIB_PREFIX}objfwtls${LIB_SUFFIX}')
		])
		AS_IF([test x"$enable_static" = x"yes" \
		    -o x"$enable_shared" = x"no"], [
			AC_SUBST(OBJFWTLS_STATIC_LIB, "libobjfwtls.a")
		])
		AS_IF([test x"$build_framework" = x"yes"], [
			AC_SUBST(OBJFWTLS_FRAMEWORK, "ObjFWTLS.framework")
		])
	])

	AS_IF([test x"$with_tls" != x"no" -a x"$tls_support" = x"no"], [
		AC_MSG_ERROR(m4_normalize([
			No TLS implementation was found. Please install OpenSSL,
			GnuTLS, Mbed TLS or use --without-tls.
		]))
	])

	AS_IF([test x"$enable_threads" != x"no"], [
		AC_SUBST(OF_HTTP_CLIENT_TESTS_M, "OFHTTPClientTests.m")
	])

		#if (!defined(TARGET_OS_IPHONE) || !TARGET_OS_IPHONE) && \
		    (!defined(TARGET_OS_SIMULATOR) || !TARGET_OS_SIMULATOR)
		egrep_cpp_yes
		#endif
	], [
		AC_MSG_RESULT(yes)




	], [
		AC_MSG_RESULT(no)
		have_subprocesses="no"
	])
	;;
mingw*)
	have_subprocesses="yes"
	;;
msdosdjgpp*)
	have_subprocesses="no"
	;;

esac
AS_IF([test x"$have_subprocesses" = x""], [
	AC_HEADER_SYS_WAIT
	AC_CHECK_FUNCS(kill)

	AC_CHECK_FUNCS(posix_spawnp, [
		AS_IF([test x"$ac_cv_func_kill" = x"yes"], [
			AC_CHECK_HEADERS(spawn.h, [have_subprocesses="yes"])
		])

	])

	AS_IF([test x"$have_subprocesses" = x""], [
		AC_CHECK_FUNCS([vfork dup2 execvp _exit], [
			AS_IF([test x"$ac_cv_func_vfork" = x"yes" \
			    -a x"$ac_cv_func_pipe" = x"yes" \
			    -a x"$ac_cv_func_dup2" = x"yes" \
			    -a x"$ac_cv_func_execvp" = x"yes" \
			    -a x"$ac_cv_func_kill" = x"yes" \
			    -a x"$ac_cv_func__exit" = x"yes"], [
				have_subprocesses="yes"
			])
		], [
			break
		])
	])


])
AS_IF([test x"$have_subprocesses" = x"yes"], [
	AC_SUBST(USE_SRCS_SUBPROCESSES, '${SRCS_SUBPROCESSES}')
	AC_SUBST(SUBPROCESS, "subprocess")
	AC_DEFINE(OF_HAVE_SUBPROCESSES, 1, [Whether we have subprocesses])
])

AC_CHECK_HEADERS_ONCE([complex.h sys/ioctl.h sys/ttycom.h])
AC_CHECK_FUNCS(ioctl isatty)

AC_CHECK_FUNC(pledge, [
	AC_DEFINE(OF_HAVE_PLEDGE, 1, [Whether we have pledge()])
])

AS_IF([test x"$objc_runtime" = x"Apple runtime"], [
	AC_CHECK_HEADER(Foundation/NSObject.h, [
		AC_SUBST(BRIDGE, "bridge")
		AC_CONFIG_FILES(src/bridge/Info.plist)

		AS_IF([test x"$enable_shared" != x"no"], [
			AC_SUBST(OBJFWBRIDGE_SHARED_LIB,
				'${LIB_PREFIX}objfwbridge${LIB_SUFFIX}')
		])
		AS_IF([test x"$enable_static" = x"yes" \
		    -o x"$enable_shared" = x"no"], [
			AC_SUBST(OBJFWBRIDGE_STATIC_LIB, "libobjfwbridge.a")
		])
		AS_IF([test x"$build_framework" = x"yes"], [
			AC_SUBST(OBJFWBRIDGE_FRAMEWORK,

	AC_MSG_RESULT(yes)
], [
	AC_MSG_RESULT(no)
	OBJCFLAGS="$old_OBJCFLAGS"
])

AS_IF([test x"$GOBJC" = x"yes"], [
	OBJCFLAGS="$OBJCFLAGS -Wwrite-strings -Wpointer-arith"

	AC_ARG_ENABLE(werror,
		AS_HELP_STRING([--disable-werror], [do not build with -Werror]))
	AS_IF([test x"$enable_werror" != x"no"], [
		OBJCFLAGS="$OBJCFLAGS -Werror"
	])

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Werror"
	AC_MSG_CHECKING(whether we need -Wno-strict-aliasing due to GCC bugs)
	AC_COMPILE_IFELSE([
		AC_LANG_PROGRAM([
			#ifdef __has_attribute
			# if __has_attribute(objc_root_class)
			__attribute__((__objc_root_class__))
			# endif

			} object;
		], [
			Foo *test = (Foo *)&object;
			(void)test; /* Get rid of unused variable warning */
		])
	], [
		AC_MSG_RESULT(no)
		OBJCFLAGS="$old_OBJCFLAGS"
	], [
		AC_MSG_RESULT(yes)
		OBJCFLAGS="$old_OBJCFLAGS -Wno-strict-aliasing"
	])

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Werror"
	AC_MSG_CHECKING(
	    whether we need -Wno-unused-property-ivar due to Clang bugs)
	AC_COMPILE_IFELSE([
		AC_LANG_SOURCE([
			#ifdef __has_attribute
			# if __has_attribute(objc_root_class)
			__attribute__((__objc_root_class__))

			{
				return (Foo *)0;
			}
			@end
		])
	], [
		AC_MSG_RESULT(no)
		OBJCFLAGS="$old_OBJCFLAGS"
	], [
		AC_MSG_RESULT(yes)
		OBJCFLAGS="$old_OBJCFLAGS -Wno-unused-property-ivar"
	])

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Wcast-align -Werror"
	AC_MSG_CHECKING(whether -Wcast-align is buggy)
	AC_COMPILE_IFELSE([
		AC_LANG_SOURCE([
			#ifdef __has_attribute
			# if __has_attribute(objc_root_class)
			__attribute__((__objc_root_class__))
			# endif

				struct objc_class *c = _isa;
				(void)c;
			}
			@end
		])
	], [
		AC_MSG_RESULT(no)
		OBJCFLAGS="$old_OBJCFLAGS -Wcast-align"
	], [
		AC_MSG_RESULT(yes)
		OBJCFLAGS="$old_OBJCFLAGS"
	])

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Wunreachable-code -Werror"
	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;

			{
				OF_DEALLOC_UNSUPPORTED
			}
			@end
		]])
	], [
		AC_MSG_RESULT(yes)
		OBJCFLAGS="$old_OBJCFLAGS -Wunreachable-code"
	], [
		AC_MSG_RESULT(no)
		OBJCFLAGS="$old_OBJCFLAGS"
	])

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Wdocumentation -Werror"
	AC_MSG_CHECKING(whether -Wdocumentation works correctly)
	AC_COMPILE_IFELSE([
		AC_LANG_SOURCE([
			/**
			 * @class Test conftest.m conftest.m
			 */
			#ifdef __has_attribute

			/**
			 * @struct Foo conftest.m conftest.m
			 */
			typedef struct {} Foo;
		])
	], [
		AC_MSG_RESULT(yes)
		OBJCFLAGS="$old_OBJCFLAGS -Wdocumentation"
	], [
		AC_MSG_RESULT(no)
		OBJCFLAGS="$old_OBJCFLAGS"
	])

	AS_IF([test x"$check_pedantic" = x"yes"], [
		old_OBJCFLAGS="$OBJCFLAGS"
		OBJCFLAGS="$OBJCFLAGS -pedantic -Werror"
		AC_MSG_CHECKING(whether -pedantic is buggy)
		AC_COMPILE_IFELSE([
			AC_LANG_SOURCE([
				#include <stdlib.h>

				#include <assert.h>

					 */
					assert(1);
				}
				@end
			])
		], [
			AC_MSG_RESULT(no)
			OBJCFLAGS="$old_OBJCFLAGS -pedantic"
		], [
			AC_MSG_RESULT(yes)
			OBJCFLAGS="$old_OBJCFLAGS"
		])
	])

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Werror"
	AC_MSG_CHECKING(whether we need -Wno-strict-prototypes)
	AC_COMPILE_IFELSE([
		AC_LANG_PROGRAM([
			#include <signal.h>
		], [
			signal(SIGINT, SIG_DFL);
		])
	], [
		AC_MSG_RESULT(no)
		OBJCFLAGS="$old_OBJCFLAGS"
	], [
		AC_MSG_RESULT(yes)
		OBJCFLAGS="$old_OBJCFLAGS -Wno-strict-prototypes"
	])

	AS_IF([test x"$ac_cv_header_complex_h" = x"yes"], [
		old_OBJCFLAGS="$OBJCFLAGS"
		OBJCFLAGS="$OBJCFLAGS -Werror"
		AC_MSG_CHECKING(whether we need -Wno-gnu-imaginary-constant)
		AC_COMPILE_IFELSE([
			AC_LANG_PROGRAM([
				#include <complex.h>
			], [
				complex float f = 0.5 + 0.5 * I;
				(void)f;
			])
		], [
			AC_MSG_RESULT(no)
			OBJCFLAGS="$old_OBJCFLAGS"
		], [
			AC_MSG_RESULT(yes)
			OBJCFLAGS="$old_OBJCFLAGS -Wno-gnu-imaginary-constant"
		])
	])
])

AS_IF([test x"$cross_compiling" = x"yes"], [
	AC_SUBST(BIN_PREFIX, "${host_alias}-")

	case "$host" in
	i?86-*-mingw*)
		AC_CHECK_PROG(WINE, wine, wine)
		;;
	x86_64-*-mingw*)
		AC_CHECK_PROG(WINE, wine64, wine64)
		;;
	esac

	AS_IF([test x"$WINE" != x""], [AC_SUBST(WRAPPER, "$WINE")])



	AS_IF([test x"$with_wii" = x"yes"], [
		dnl Keep this lowercase, as WIILOAD is a variable used by
		dnl wiiload and thus likely already set by the user to something
		dnl that is not the path of the wiiload binary.
		AC_CHECK_PROG(wiiload, wiiload, wiiload)

		AS_IF([test x"$wiiload" != x""], [
			AC_SUBST(WRAPPER, "$wiiload")
		])
	])
])












dnl We don't call AC_PROG_CPP, but only AC_PROG_OBJCPP and set CPP to OBJCPP
dnl and add OBJCPPFLAGS to CPPFLAGS, thus we need to AC_SUBST these ourself.
AC_SUBST(CPP)
AC_SUBST(CPPFLAGS)
dnl We use the ObjC compiler as our assembler
AC_SUBST(AS, $OBJC)
AC_SUBST(ASFLAGS)