Use autoconf to check for features needed by Networking TS

	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Check for headers used by Networking TS.
	* include/experimental/executor: Include <condition_variable>
	instead of <mutex>.
	* include/experimental/internet: Use autoconf macros for available
	headers.  Include <sys/socket.h> for.  Remove <cstring> and use
	__builtin_memcpy and __builtin_strchr.
	(resolver_errc) [!_GLIBCXX_HAVE_NETDB_H]: Do not define.
	(address_v4::to_string, address_v6::to_string)
	[!_GLIBCXX_HAVE_ARPA_INET_H]: Likewise.
	(basic_resolver_results) [!_GLIBCXX_HAVE_NETDB_H]: Make private
	constructors report errors.
	[!_GLIBCXX_HAVE_NETINET_TCP_H] (tcp::no_delay): Do not define.
	* include/experimental/io_context: Likewise.
	* include/experimental/socket: Likewise.
	[!_GLIBCXX_HAVE_SYS_SOCKET_H, !_GLIBCXX_HAVE_POLL_H] (socket_base): Do
	not define nested types when relevant header not available.
	(__socket_impl::native_non_blocking) [!_GLIBCXX_HAVE_FCNTL_H]: Report
	an error.
	(__basic_socket_impl::open, __basic_socket_impl::local_endpoint)
	(__basic_socket_impl::bind) [!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
	(__basic_socket_impl::io_control) [!_GLIBCXX_HAVE_SYS_IOCTL_H]:
	Likewise.
	(basic_socket::at_mark, basic_socket::shutdown)
	(basic_socket::remote_endpoint, basic_socket::connect)
	(basic_socket::async_connect) [!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
	(basic_socket::available) [_GLIBCXX_HAVE_SYS_IOCTL_H]: Check macro
	for <sys/ioctl.h> availability.
	(basic_socket::wait) [!_GLIBCXX_HAVE_POLL_H]: Likewise.
	(basic_datagram_socket::receive, basic_datagram_socket::async_receive)
	(basic_datagram_socket::receive_from)
	(basic_datagram_socket::async_receive_from)
	(basic_datagram_socket::send, basic_datagram_socket::async_send)
	(basic_datagram_socket::send_to, basic_datagram_socket::async_send_to)
	[!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
	(basic_stream_socket::receive, basic_stream_socket::async_receive)
	(basic_stream_socket::send, basic_stream_socket::async_send)
	[!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
	(basic_socket_acceptor::listen, basic_socket_acceptor::accept)
	(basic_socket_acceptor::async_accept) [!_GLIBCXX_HAVE_SYS_SOCKET_H]:
	Likewise.
	(basic_socket_acceptor::wait) [!_GLIBCXX_HAVE_POLL_H]: Likewise.

git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@265203 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 18 insertions, 0 deletions

diff --git a/libstdc++-v3/config.h.in b/libstdc++-v3/config.h.in
index 65e7b46dc4e..fa69b7a0895 100644
--- a/libstdc++-v3/config.h.in
+++ b/libstdc++-v3/config.h.in
@@ -9,6 +9,9 @@
 /* Define to 1 if you have the `aligned_alloc' function. */
 #undef HAVE_ALIGNED_ALLOC
 
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#undef HAVE_ARPA_INET_H
+
 /* Define to 1 if you have the `asinf' function. */
 #undef HAVE_ASINF
 
@@ -318,6 +321,15 @@
 /* Define to 1 if you have the <nan.h> header file. */
 #undef HAVE_NAN_H
 
+/* Define to 1 if you have the <netdb.h> header file. */
+#undef HAVE_NETDB_H
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#undef HAVE_NETINET_IN_H
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#undef HAVE_NETINET_TCP_H
+
 /* Define if <math.h> defines obsolete isinf function. */
 #undef HAVE_OBSOLETE_ISINF
 
@@ -327,6 +339,9 @@
 /* Define if poll is available in <poll.h>. */
 #undef HAVE_POLL
 
+/* Define to 1 if you have the <poll.h> header file. */
+#undef HAVE_POLL_H
+
 /* Define to 1 if you have the `posix_memalign' function. */
 #undef HAVE_POSIX_MEMALIGN
 
@@ -448,6 +463,9 @@
 /* Define to 1 if you have the <sys/sem.h> header file. */
 #undef HAVE_SYS_SEM_H
 
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#undef HAVE_SYS_SOCKET_H
+
 /* Define to 1 if you have the <sys/statvfs.h> header file. */
 #undef HAVE_SYS_STATVFS_H