ObjFW  Diff

	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:

		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_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

			#endif

			#ifdef AF_INET6
			egrep_cpp_yes
			#endif
		], [
			AC_DEFINE(OF_HAVE_IPV6, 1, [Whether we have IPv6])

			AC_CHECK_FUNCS(inet6_getscopeid)
		])
	], [
		dnl Work around a bug in autoconf 2.61 that creates a broken
		dnl configure if this branch is empty.
		:
	], [
		#ifdef _WIN32

		#ifdef __morphos__
		# error MorphOS has the struct but does not support it
		#endif

		#ifdef __MINT__
		# error Gives invalid argument at runtime
		#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

				[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"

				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"
			;;

				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], [
			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_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}-")