ObjFW  Diff

	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"
	supports_amiga_lib="yes"

	AS_IF([test x"$enable_amiga_lib" != x"no"], [
		AC_SUBST(OBJFWRT_AMIGA_LIB,
			['objfwrt${OBJFWRT_LIB_MAJOR}.library'])
		dnl For 68000, GCC emits calls to helper functions that
		dnl do not work properly in a library.
		t="-mcpu=68020 -fbaserel -noixemul -ffreestanding"
		AC_SUBST(AMIGA_LIB_CFLAGS, $t)
		t="$t -resident -nostartfiles -nodefaultlibs -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"
	with_tls="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"

	dnl always include inttypes.h as the very first thing.
	dnl We need to put this into OBJCFLAGS and not CPPFLAGS as CPPFLAGS are
	dnl also used for .S files.
	OBJCFLAGS="$OBJCFLAGS -include inttypes.h"
	dnl We need -latomic for GCC's atomics to work.
	LIBS="$LIBS -latomic"
	;;
*-*-mint*)
	enable_shared="no"
	enable_threads="no"	# TODO
	with_tls="no"
	;;
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}

		AC_MSG_ERROR([DEVKITPRO is not set! Please set DEVKITPRO.])
	])

	flags="-mrvl -mcpu=750 -meabi -mhard-float"
	OBJCFLAGS="$OBJCFLAGS $flags"
	OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flags"
	CPPFLAGS="$CPPFLAGS -DGEKKO -I$DEVKITPRO/libogc/include"
	OBJFW_CPPFLAGS="$OBJFW_CPPFLAGS -DGEKKO -I\$DEVKITPRO/libogc/include"
	LDFLAGS="$LDFLAGS -mrvl -mcpu=750 -meabi -mhard-float"
	LIBS="$LIBS -L$DEVKITPRO/libogc/lib/wii -lfat -logc"
	TESTS_LIBS="$TESTS_LIBS -lwiiuse -lbte"
	enable_shared="no"
	enable_threads="no"	# TODO
	with_tls="no"

	AC_DEFINE(OF_WII, 1, [Whether we are compiling for Wii])
	AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map'])
])

AC_ARG_WITH(wii-u,
	AS_HELP_STRING([--with-wii-u], [build for Wii U]))
AS_IF([test x"$with_wii_u" = x"yes"], [
	AS_IF([test x"$DEVKITPRO" = x""], [
		AC_MSG_ERROR([DEVKITPRO is not set! Please set DEVKITPRO.])
	])

	flags="-mcpu=750 -meabi -mhard-float"
	OBJCFLAGS="$OBJCFLAGS $flags"
	OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flags"
	CPPFLAGS="-isystem $DEVKITPRO/wut/include -D__WIIU__ -D__WUT__"
	OBJFW_CPPFLAGS="$OBJFW_CPPFLAGS -isystem \$DEVKITPRO/wut/include"
	OBJFW_CPPFLAGS="$OBJFW_CPPFLAGS -D__WIIU__ -D__WUT__"
	LDFLAGS="-specs=$DEVKITPRO/wut/share/wut.specs"
	LIBS="-L$DEVKITPRO/wut/lib -L$DEVKITPRO/wut/lib/stubs -lwut"
	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'])
])

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.])
	])

	flags="-march=armv5te -mtune=arm946e-s -mthumb -mthumb-interwork"
	OBJCFLAGS="$OBJCFLAGS $flags"
	OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flags"
	CPPFLAGS="$CPPFLAGS -DARM9 -I$DEVKITPRO/libnds/include"
	OBJFW_CPPFLAGS="$OBJFW_CPPFLAGS -DARM9 -I\$DEVKITPRO/libnds/include"
	ASFLAGS="$ASFLAGS -march=armv5te"
	LDFLAGS="$LDFLAGS -specs=ds_arm9.specs"
	LIBS="$LIBS -L$DEVKITPRO/libnds/lib -lfilesystem -lfat -lnds9"
	enable_shared="no"
	enable_threads="no"	# TODO
	enable_sockets="no"	# TODO
	check_pedantic="no"

	AC_DEFINE(OF_NINTENDO_DS, 1, [Whether we are compiling for Nintendo DS])

	AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map'])
])

AC_ARG_WITH(3ds,
	AS_HELP_STRING([--with-3ds], [build for Nintendo 3DS]))
AS_IF([test x"$with_3ds" = x"yes"], [
	AS_IF([test x"$DEVKITPRO" = x""], [
		AC_MSG_ERROR([DEVKITPRO is not set! Please set DEVKITPRO.])
	])

	flags="-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft"
	flags="$flags -mword-relocations"
	OBJCFLAGS="$OBJCFLAGS $flags"
	OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flags"
	CPPFLAGS="$CPPFLAGS -DARM11 -I$DEVKITPRO/libctru/include"
	OBJFW_CPPFLAGS="$OBJFW_CPPFLAGS -DARM11 -I\$DEVKITPRO/libctru/include"
	ASFLAGS="$ASFLAGS -march=armv6k"
	LDFLAGS="$LDFLAGS -specs=3dsx.specs -march=armv6k -mtune=mpcore"
	LDFLAGS="$LDFLAGS -mfloat-abi=hard -mtp=soft -mword-relocations"
	LIBS="$LIBS -L$DEVKITPRO/libctru/lib -lctru"
	enable_shared="no"
	enable_threads="no"	# TODO
	with_tls="no"
	check_pedantic="no"

	AC_DEFINE(OF_NINTENDO_3DS, 1,
		[Whether we are compiling for Nintendo 3DS])

	AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map'])
])

AC_ARG_WITH(nintendo-switch,
	AS_HELP_STRING([--with-nintendo-switch], [build for Nintendo Switch]))
AS_IF([test x"$with_nintendo_switch" = x"yes"], [
	AS_IF([test x"$DEVKITPRO" = x""], [
		AC_MSG_ERROR([DEVKITPRO is not set! Please set DEVKITPRO.])
	])

	flags="-march=armv8-a+crc+crypto -mtune=cortex-a57 -mtp=soft -fPIE"
	OBJCFLAGS="$OBJCFLAGS $flags"
	OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flags"
	CPPFLAGS="$CPPFLAGS -D__SWITCH__ -I$DEVKITPRO/libnx/include"
	OBJFW_CPPFLAGS="$OBJFW_CPPFLAGS -D__SWITCH__ -I$DEVKITPRO/libnx/include"
	ASFLAGS="$ASFLAGS $flags"
	LDFLAGS="$LDFLAGS -specs=$DEVKITPRO/libnx/switch.specs $flags"
	LIBS="$LIBS -L$DEVKITPRO/libnx/lib -lnx"
	enable_shared="no"
	enable_threads="yes"
	enable_sockets="no"	# TODO
	check_pedantic="no"

	AC_DEFINE(OF_NINTENDO_SWITCH, 1,
		[Whether we are compiling for Nintendo Switch])
])

CPP="$OBJCPP"
CPPFLAGS="$CPPFLAGS $OBJCPPFLAGS -DOF_COMPILING_OBJFW"
flags="-fexceptions -fobjc-exceptions -funwind-tables"
flags="$flags -fconstant-string-class=OFConstantString"
OBJCFLAGS="$OBJCFLAGS -Wall $flags"
OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flags"

])

AC_MSG_CHECKING(whether we need -D_GNU_SOURCE)
AC_EGREP_CPP(egrep_cpp_yes, [
	#include <stdlib.h>

	#if defined(__GLIBC__) || defined(__MINGW32__) || \
	    defined(__NEWLIB__) || defined(__MORPHOS__) || defined(__MINT__)
	egrep_cpp_yes
	#endif
], [
	AC_MSG_RESULT(yes)
	CPPFLAGS="-D_GNU_SOURCE $CPPFLAGS"
	gnu_source="yes"
], [

	])

	OBJCFLAGS="$old_OBJCFLAGS"
	;;
esac

case "$host_os" in
mint*)
	dnl _Unwind_Backtrace crashes on MiNT
	;;
hpux*)
	dnl _Unwind_Backtrace() returns complete garbage on HP-UX.
	;;
*)
	AC_CHECK_FUNCS(_Unwind_Backtrace)
	;;
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(asprintf, [
	case "$host" in
	*-*-mint*)
		dnl asprintf is not in headers
		have_asprintf="no"
		;;
	*-*-mingw*)
		dnl asprintf from MinGW is broken on older Windows versions
		have_asprintf="no"
		;;
	*-psp-*)
		dnl asprintf is broken on the PSP
		have_asprintf="no"

		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_SUBST(USE_SRCS_THREADS, '${SRCS_THREADS}')
	AC_SUBST(OBJC_SYNC, objc_sync)

	AC_ARG_ENABLE(compiler-tls,
		AS_HELP_STRING([--disable-compiler-tls],
			[disable compiler thread local storage]))

	case "$host" in
	aarch64*-*-android*)

			[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_HEADERS([arpa/inet.h netdb.h])
	AC_CHECK_HEADER(sys/un.h, [
		AC_DEFINE(OF_HAVE_SYS_UN_H, 1, [Whether we have sys/un.h])
	])
	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_in6.sin6_addr], [
		AC_EGREP_CPP(egrep_cpp_yes, [

		#   include <winsock2.h>
		#  endif
		# endif
		# include <windows.h>
		# include <ws2tcpip.h>
		#endif
	])

	AC_CHECK_HEADERS(afunix.h, [
		AC_DEFINE(OF_HAVE_AFUNIX_H, 1, [Whether we have afunix.h])
	], [], [
		#ifdef _WIN32
		# 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}')
	], [], [
		#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 __morphos__
		# error MorphOS has the struct but does not support it
		#endif

		#ifdef __MINT__
		# error Gives invalid argument at runtime
		#endif
	])

	AC_CHECK_MEMBER(struct sockaddr_ipx.sipx_network, [], [
		AC_CHECK_MEMBER(struct sockaddr_ipx.sa_netnum, [], [], [
			#ifdef _WIN32
			typedef int BOOL;
			#endif

			AC_DEFINE(HAVE_SELECT, 1,
				[Whether we have select() or similar])
			AC_SUBST(OF_SELECT_KERNEL_EVENT_OBSERVER_M,
				"OFSelectKernelEventObserver.m")
		])
		;;
	esac

	AC_ARG_WITH(tls,
		AS_HELP_STRING([--with-tls], [
			enable TLS support using the specified library
			(yes, openssl, gnutls, securetransport 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, [
				AC_DEFINE(HAVE_SECURE_TRANSPORT, 1,
					[Whether we have Secure Transport])

				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, [
				AC_DEFINE(HAVE_OPENSSL, 1,
					[Whether we have OpenSSL])

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

				AC_SUBST(OF_OPENSSL_TLS_STREAM_M,
					"OFOpenSSLTLSStream.m")
			])
		], [], [-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], [
			AC_DEFINE(HAVE_GNUTLS, 1, [Whether we have GnuTLS])

			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"$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)

		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 or use --without-tls.
		]))
	])

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

	AC_SUBST(OFDNS, "ofdns")
	AS_IF([test x"$enable_files" != x"no"], [
		AC_SUBST(OFHTTP, "ofhttp")
		AC_SUBST(OFHTTP_LIBS)
	])
])

AC_DEFUN([CHECK_BUILTIN_BSWAP], [
	AC_MSG_CHECKING(for __builtin_bswap$1)
	AC_LINK_IFELSE([
		AC_LANG_PROGRAM([

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

		AC_CHECK_FUNCS(posix_spawnp)
		AC_CHECK_HEADERS(spawn.h)
	], [
		AC_MSG_RESULT(no)
		have_subprocesses="no"
	])
	;;
mingw*)
	have_subprocesses="yes"