ObjFW  Check-in [8f56a02f49]

if [ "$TRAVIS_OS_NAME" = "linux" -a -z "$config" ]; then
	build_32_64() {
		build OBJC="$CC" $@

		case "$TRAVIS_CPU_ARCH" in
			amd64)
				build OBJC="$CC -m32" \
					--host=i686-pc-linux-gnu $@
				;;
			s390x)
				build OBJC="$CC -m31" \
					--host=s390-pc-linux-gnu $@
				;;
		esac
	}

	build_32_64
	build_32_64 --enable-seluid24
	build_32_64 --disable-compiler-tls

			[AC_SUBST(DEP_OBJCXXFLAGS, '-MD -MF $${out%.o}.dep')])

		AC_SUBST(AMIGA_LIB_CFLAGS)
		AC_SUBST(AMIGA_LIB_LDFLAGS)

		case "$build_os" in
			morphos*)
				dnl Don't use tput on MorphOS: The colored
				dnl output is quite unreadable and in some
				dnl MorphOS versions, the output from tput is
				dnl not 8-bit safe, with awk (for AC_SUBST)
				dnl failing as a result.
				;;
			*)
				AC_PATH_PROG(TPUT, tput)
				;;
		esac

		AS_IF([test x"$TPUT" != x""], [

AC_DEFUN([BUILDSYS_CHECK_IOS], [
	case "$host_os" in
		darwin*)
			AC_MSG_CHECKING(whether host is iOS)
			AC_EGREP_CPP(yes, [
				#include <TargetConditionals.h>

				#if (defined(TARGET_OS_IPHONE) && \
				    TARGET_OS_IPHONE) || \
				    (defined(TARGET_OS_SIMULATOR) && \
				    TARGET_OS_SIMULATOR)
				yes
				#endif
			], [
				host_is_ios="yes"
			], [

AC_CANONICAL_HOST

dnl Used to disable checking for -pedantic on some platforms where it's broken
check_pedantic="yes"

case "$host" in
	arm-*-riscos*)
		AS_IF([test x"$OBJCFLAGS" = x""], [
			OBJCFLAGS="-O2 -g"
		])
		flags="-mfloat-abi=softfp -mfpu=vfp -mlibscl"
		ASFLAGS="$ASFLAGS -mfloat-abi=softfp -mfpu=vfp"
		OBJCFLAGS="$OBJCFLAGS $flags"
		OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flags"
		LDFLAGS="$LDFLAGS $flags"

		enable_shared="no"
		enable_threads="no"
		enable_sockets="no"
		enable_files="no"
		;;
	m68k-*-amigaos*)
		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"

		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.])
		])

		AS_IF([test x"$OBJCFLAGS" = x""], [
			OBJCFLAGS="-O2"
		])
		OBJCFLAGS="$OBJCFLAGS -G0"
		OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS -G0"
		CPPFLAGS="$CPPFLAGS -I$DEVKITPSP/psp/sdk/include"
		LDFLAGS="$LDFLAGS -G0"
		LIBS="$LIBS -L$DEVKITPSP/psp/sdk/lib -lpspdebug -lpspdisplay"
		LIBS="$LIBS -lpspge -lpspctrl -lpspsdk -lc -lpspnet"
		LIBS="$LIBS -lpspnet_inet -lpspnet_apctl -lpspnet_resolver"

	: ${GREP:=grep.exe}
	: ${RANLIB:=ranlib.exe}
])

AC_LANG([Objective C])
case "$host_os" in
	morphos*)
		dnl Don't use clang on MorphOS - it does not support baserel,
		dnl which is required for the .library.
		potential_compilers="gcc"
		;;
	*)
		potential_compilers="clang egcc gcc"
		;;
esac
AC_PROG_OBJC($potential_compilers)

dnl amiga-gcc requires -fexceptions in LDFLAGS in order to link in the glue code
dnl for registering the frames.
LDFLAGS="$LDFLAGS -fexceptions"

case "$OBJC" in
	*clang*)
		case "$host" in

			dnl Clang generates MIPS assembly not accepted by GNU
			dnl as, however, Clang's integrated assembler doesn't
			dnl accept everything used in ObjFW's assembly files.
			dnl Therefore, use the integrated assembler for ObjC
			dnl files, but not for assembly files.
			mips*-*-*)
				flag="-integrated-as"
				OBJCFLAGS="$OBJCFLAGS $flag"
				OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flag"
				;;

			dnl Don't use -no-integrated-as on Darwin. It breaks
			dnl building for the iOS simulator.
			i?86-*-darwin* | x86_64-*-darwin*)
				;;
			dnl Many older Clang versions don't support jmp short.
			i?86-*-* | x86_64-*-*)

				ASFLAGS="$ASFLAGS -no-integrated-as"
				;;

			dnl Clang's assembler on Windows is not complete yet
			dnl and cannot compile all .S files.
			*-*-mingw*)
				ASFLAGS="$ASFLAGS -no-integrated-as"
				;;

			dnl Clang generates assembly output on SPARC64 that
			dnl OpenBSD's assembler does not accept.
			sparc64-*-*openbsd*)
				flag="-integrated-as"
				OBJCFLAGS="$OBJCFLAGS $flag"
				OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flag"
				;;
		esac
		;;
esac

AX_CHECK_COMPILER_FLAGS(-std=gnu11, [
	OBJCFLAGS="$OBJCFLAGS -std=gnu11"
], [
	AX_CHECK_COMPILER_FLAGS(-std=gnu1x, [
		OBJCFLAGS="$OBJCFLAGS -std=gnu1x"
	], [
		AX_CHECK_COMPILER_FLAGS(-std=gnu99,
			[OBJCFLAGS="$OBJCFLAGS -std=gnu99"])
	])
])

case "$build_os" in
	morphos*)
		# MorphOS 3.10 has a buggy ixemul that does not work with -pipe.
		;;
	*)
		AX_CHECK_COMPILER_FLAGS(-pipe, [OBJCFLAGS="$OBJCFLAGS -pipe"])
		;;
esac
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],

AX_CHECK_COMPILER_FLAGS([-Wobjc-missing-property-synthesis -Werror],
	[OBJCFLAGS="$OBJCFLAGS -Wobjc-missing-property-synthesis"])
AX_CHECK_COMPILER_FLAGS([-Wmissing-method-return-type -Werror],
	[OBJCFLAGS="$OBJCFLAGS -Wmissing-method-return-type"])

case "$host" in
	m68k-*-amigaos*)
		dnl The inline headers generate code that triggers
		dnl -Wpointer-sign.
		OBJCFLAGS="$OBJCFLAGS -Wno-pointer-sign"
		;;
esac

AC_MSG_CHECKING(whether Objective C compiler supports properties)
AC_COMPILE_IFELSE([
	AC_LANG_PROGRAM([

		])
	])
])
AC_MSG_RESULT($objc_runtime)

case "$objc_runtime" in
	"ObjFW runtime")
		AC_DEFINE(OF_OBJFW_RUNTIME, 1,
			[Whether we use the ObjFW runtime])

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

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

				__objc_exec_class(void *module)
				{
				}
			], [[
				[Test test];
			]])
		], [
			flag="-Xclang -fobjc-runtime=objfw"
			OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flag"
			AC_MSG_RESULT(yes)
		], [
			flag="-fgnu-runtime"
			OBJCFLAGS="$old_OBJCFLAGS $flag"
			OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS $flag"
			AC_MSG_RESULT(no)
			old_compiler="yes"
		])

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

			AC_SUBST(LIBOBJFWRT_DEP_LVL2, "../$tmp")
		], [
			AC_SUBST(RUNTIME_LIBS, "-lobjfwrt")
		])

		AS_IF([test x"$enable_shared" = x"no" \
				-a x"$enable_amiga_lib" = x"no"], [
			tmp="../src/runtime/libobjfwrt.a"
			AC_SUBST(LIBOBJFWRT_DEP, "$tmp")
			AC_SUBST(LIBOBJFWRT_DEP_LVL2, "../$tmp")
		])

		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_COMPILE_IFELSE([
			AC_LANG_PROGRAM([
				extern void foo();
			], [
				@try {
					foo();
				} @finally {
					foo();
				}
			])
		], [
			AS_IF([$EGREP __gnu_objc_personality_v0 \
					conftest.$ac_objext >/dev/null], [
				exception_type="DWARF"
			])
			AS_IF([$EGREP __gnu_objc_personality_sj0 \
					conftest.$ac_objext >/dev/null], [
				exception_type="SjLj"
			])
			AS_IF([$EGREP __gnu_objc_personality_seh0 \
					conftest.$ac_objext >/dev/null], [
				exception_type="SEH"
			])

			raise_exception="_Unwind_RaiseException"

			case "$exception_type" in
			DWARF)
				AC_DEFINE(HAVE_DWARF_EXCEPTIONS, 1,
					[Whether DWARF exceptions are used])

				;;
			SjLj)
				AC_DEFINE(HAVE_SJLJ_EXCEPTIONS, 1,
					[Whether SjLj exceptions are used])
				raise_exception="_Unwind_SjLj_RaiseException"
				;;
			SEH)
				AC_DEFINE(HAVE_SEH_EXCEPTIONS, 1,
					[Whether SEH exceptions are used])

				;;
			*)
				AC_MSG_RESULT(unknown)
				AC_MSG_ERROR([Exception type not detected!])
				;;
			esac

			AC_MSG_RESULT($exception_type)
		], [
			AC_MSG_RESULT(exceptions unavailable!)
			AC_MSG_ERROR([Exceptions not accepted by compiler!])
		])

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

		AC_CHECK_FUNCS(_Unwind_GetDataRelBase _Unwind_GetTextRelBase)
		;;
	"Apple runtime")
		AC_DEFINE(OF_APPLE_RUNTIME, 1,
			[Whether we use the Apple ObjC runtime])

		AC_CHECK_LIB(objc, objc_msgSend, [
			AC_SUBST(RUNTIME_LIBS, "-lobjc")
			AC_SUBST(RUNTIME_FRAMEWORK_LIBS, "-lobjc")
		], [
			AC_MSG_ERROR([libobjc not found!])
		])

AC_CHECK_FUNCS(_Unwind_Backtrace)

case "$host_os" in
	darwin*)
		AC_SUBST(LDFLAGS_REEXPORT, ["-Wl,-reexport-lobjfw"])
		AS_IF([test x"$objc_runtime" = x"Apple runtime"], [
			AC_SUBST(REEXPORT_RUNTIME, ["-Wl,-reexport-lobjc"])
			AC_SUBST(REEXPORT_RUNTIME_FRAMEWORK,
				["-Wl,-reexport-lobjc"])
			LDFLAGS="$LDFLAGS -Wl,-U,_NSFoundationVersionNumber"
		])

		AS_IF([test x"$objc_runtime" = x"ObjFW runtime"], [
			AS_IF([test x"$exception_type" = x"DWARF"], [
				LDFLAGS="$LDFLAGS -Wl,-U,___gxx_personality_v0"
			])

		[Floating point implementation does not conform to IEEE 754!])])

case "$host_cpu" in
	arm* | earm*)
		AC_MSG_CHECKING(for VFP2 or above)
		AC_COMPILE_IFELSE([
			AC_LANG_PROGRAM([], [
				#if !defined(__arm64__) && \
				    !defined(__aarch64__) && \
				    !defined(__ARM64_ARCH_8__)
				__asm__ __volatile__ (
				    "vstmdb	sp!, {d0-d7}"
				);
				#endif
			])
		], [

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

AC_CHECK_FUNC(asprintf, [
	case "$host" in
		*-*-mingw*)
			dnl asprintf from MinGW is broken on older Windows
			dnl versions
			have_asprintf="no"
			;;
		*-psp-*)
			dnl asprintf is broken on the PSP
			have_asprintf="no"
			;;
		*)
			have_asprintf="yes"
			AC_DEFINE(HAVE_ASPRINTF, 1,
				[Whether we have asprintf()])
		;;
	esac
], [
	have_asprintf="no"
])

AC_ARG_ENABLE(unicode-tables,

AS_IF([test x"$host_os" != x"morphos"], [
	AC_CHECK_LIB(dl, dlopen, LIBS="$LIBS -ldl")
])
AC_CHECK_HEADERS_ONCE(dlfcn.h)
case "$host_os" in
	netbsd*)
		dnl dladdr exists on NetBSD, but it is completely broken.
		dnl When using it with code that uses __thread, it freezes the
		dnl process so that it has to be killed using SIGKILL.
		dnl When disabling __thread, it doesn't freeze, but all symbols
		dnl are wrong.
		;;
	morphos*)
		dnl MorphOS has a dladdr symbol, but it doesn't work.
		;;
	*)
		AC_CHECK_FUNCS(dladdr)
		;;

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

	case "$host" in
		aarch64*-*-android*)
			# Compiler TLS is broken on AArch64 Android with Clang
			enable_compiler_tls="no"
			;;
		m68k-*-amigaos* | powerpc-*-amigaos*)
			# Compiler TLS is broken on AmigaOS
			enable_compiler_tls="no"
			;;
		*-*-morphos*)
			# Compiler TLS needs helpers that we don't want in the
			# .library
			enable_compiler_tls="no"

	esac

	AS_IF([test x"$enable_compiler_tls" != x"no"], [
		AC_CHECK_HEADER(threads.h, [
			AC_DEFINE(OF_HAVE_THREADS_H, 1,
				[Whether we have threads.h])
		])

	case "$host_os" in
		msdosdjgpp*)
			dnl DJGPP has the type, but it's not really usable.
			;;
		*)
			AC_CHECK_TYPE(off64_t, [
				AC_DEFINE(OF_HAVE_OFF64_T, 1,
					[Whether we have off64_t])
				AC_CHECK_FUNCS([lseek64 lstat64 open64 stat64])
			])
			;;
	esac

	AC_CHECK_HEADERS([pwd.h grp.h])
	AC_CHECK_FUNC(chmod, [

		AC_DEFINE(HAVE_READDIR_R, 1, [Whether we have readdir_r()])
	], [
		AC_MSG_RESULT(no)
	])
	OBJCFLAGS="$old_OBJCFLAGS"
])

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












AC_CHECK_HEADERS(xlocale.h)
AC_CHECK_FUNCS([strtod_l strtof_l asprintf_l])
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_ARG_ENABLE(sockets,
	AS_HELP_STRING([--disable-sockets], [disable socket support]))
AS_IF([test x"$enable_sockets" != x"no"], [
	AC_DEFINE(OF_HAVE_SOCKETS, 1, [Whether we have sockets])
	AC_SUBST(USE_SRCS_SOCKETS, '${SRCS_SOCKETS}')

	case "$host_os" in
		amigaos*)
			;;
		haiku*)
			LIBS="$LIBS -lnetwork"
			;;
		mingw*)
			LIBS="$LIBS -lws2_32 -liphlpapi"
			;;

			AC_SUBST(OF_POLL_KERNEL_EVENT_OBSERVER_M,
				"OFPollKernelEventObserver.m")
		])
	])

	case "$host_os" in
		amigaos* | mingw* | morphos*)
			AC_DEFINE(HAVE_SELECT, 1,
				[Whether we have select() or similar])
			AC_SUBST(OF_SELECT_KERNEL_EVENT_OBSERVER_M,
				"OFSelectKernelEventObserver.m")
			;;
		*)
			AC_CHECK_HEADERS(sys/select.h)
			AC_CHECK_FUNC(select, [
				AC_DEFINE(HAVE_SELECT, 1,

case "$host_os" in
	darwin*)
		AC_MSG_CHECKING(whether we are compiling for macOS)
		AC_EGREP_CPP(egrep_cpp_yes, [
			#include <TargetConditionals.h>

			#if (!defined(TARGET_OS_IPHONE) || \
			    !TARGET_OS_IPHONE) && \
			    (!defined(TARGET_OS_SIMULATOR) || \
			    !TARGET_OS_SIMULATOR)
			egrep_cpp_yes
			#endif
		], [
			AC_MSG_RESULT(yes)
			have_processes="yes"
		], [
			AC_MSG_RESULT(no)

# define HOSTS_PATH @"AmiTCP:db/hosts"
# define RESOLV_CONF_PATH @"AmiTCP:db/resolv.conf"
#else
# define HOSTS_PATH @"/etc/hosts"
# define RESOLV_CONF_PATH @"/etc/resolv.conf"
#endif


static OFString *
domainFromHostname(OFString *hostname)
{
	if (hostname == nil)
		return nil;

	@try {

		if (pos == OF_NOT_FOUND)
			return nil;

		return [hostname substringFromIndex: pos + 1];
	}
}


#if !defined(OF_WII) && !defined(OF_MORPHOS)
static OFString *
obtainHostname(void)
{
	char hostname[256];

			if test x"$plugin" = x"yes"; then
				echo "You can't use --lib and --plugin!"
				exit 1
			fi

			shift

			if ! echo "$1" | grep "^[0-9]\+\.[0-9]\+$" >/dev/null
			then
				echo "$1 is not a valid library version!"
				exit 1
			fi

			export LIB_MAJOR="${1%.*}"
			export LIB_MINOR="${1#*.}"

	fi
}

while test x"$1" != "x"; do
	case "$1" in
		--all)
			output_flag "$CFLAGS $CPPFLAGS $CXXFLAGS $OBJCFLAGS"
			output_flag "$LDFLAGS $LDFLAGS_REEXPORT $LDFLAGS_RPATH"
			output_flag "$LIBS"
			;;
		--arc)
			output_flag "-fobjc-arc -fobjc-arc-exceptions"
			;;
		--cflags)
			output_flag "$CFLAGS"
			;;

			output_flag "$OBJCFLAGS"
			;;
		--libs)
			output_flag "$LIBS"
			;;
		--lib-cflags)
			if test x"$LIB_MAJOR" = x"" -o x"$LIB_MINOR" = x""; then
				echo "LIB_MAJOR and LIB_MINOR need to be set!" \
					1>&2
				exit 1
			fi

			output_flag "$LIB_CFLAGS"
			;;
		--lib-ldflags)
			if test x"$SHARED_LIB" = x"" -o x"$LIB_MAJOR" = x"" \
			-o x"$LIB_MINOR" = x""; then
				printf "SHARED_LIB, LIB_MAJOR and " 2>&1
				echo "LIB_MINOR need to be set!" 1>&2
				exit 1
			fi

			output_flag "$LIB_LDFLAGS"
			;;
		--lib-prefix)
			if test x"$LIB_MAJOR" = x"" -o x"$LIB_MINOR" = x""; then
				echo "LIB_MAJOR and LIB_MINOR need to be set!" \
					1>&2
				exit 1
			fi

			output_flag "$LIB_PREFIX"
			;;
		--lib-suffix)
			if test x"$LIB_MAJOR" = x"" -o x"$LIB_MINOR" = x""; then
				echo "LIB_MAJOR and LIB_MINOR need to be set!" \
					1>&2
				exit 1
			fi

			output_flag "$LIB_SUFFIX"
			;;
		--ldflags)
			output_flag "$LDFLAGS"