api: fix connection to servers with hook_connect() on Windows 10 with Windows subsystem for Linux (closes #770)

1 files changed, 40 insertions, 0 deletions

diff --git a/cmake/FindSocketpair.cmake b/cmake/FindSocketpair.cmake
new file mode 100644
index 000000000..cc6c7d968
--- /dev/null
+++ b/cmake/FindSocketpair.cmake
@@ -0,0 +1,40 @@
+#
+# Copyright (C) 2016 Sébastien Helleu <flashcode@flashtux.org>
+#
+# This file is part of WeeChat, the extensible chat client.
+#
+# WeeChat is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# WeeChat is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# - Find Socketpair
+# This module finds if socketpair function is available and supports SOCK_DGRAM.
+#
+
+if(SOCKETPAIR_FOUND)
+   # Already in cache, be silent
+   set(SOCKETPAIR_FIND_QUIETLY TRUE)
+endif()
+
+include(CheckCSourceRuns)
+
+set(CMAKE_REQUIRED_FLAGS -Werror)
+check_c_source_runs("
+  #include <sys/types.h>
+  #include <sys/socket.h>
+  int main() {
+        int socket[2];
+        int rc = socketpair (AF_LOCAL, SOCK_DGRAM, 0, socket);
+        return (rc == 0) ? 0 : 1;
+  }
+" HAVE_SOCKETPAIR_SOCK_DGRAM)