Detect and use sys/select.h required by POSIX for select

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40530 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/gsocket.cpp

@@ -39,6 +39,10 @@
 #include <netdb.h>
 #include <sys/ioctl.h>
 
+#ifdef HAVE_SYS_SELECT_H
+#   include <sys/select.h>
+#endif
+
 #ifdef __VMS__
 #include <socket.h>
 struct sockaddr_un

src/unix/joystick.cpp

@@ -29,6 +29,10 @@
 #include <fcntl.h>
 #include <unistd.h>
 
+#ifdef HAVE_SYS_SELECT_H
+#   include <sys/select.h>
+#endif
+
 #include "wx/unix/private.h"
 
 enum {

src/unix/utilsunx.cpp

@@ -39,6 +39,10 @@
 
 #include <pwd.h>
 
+#ifdef HAVE_SYS_SELECT_H
+#   include <sys/select.h>
+#endif
+
 #define HAS_PIPE_INPUT_STREAM (wxUSE_STREAMS && wxUSE_FILE)
 
 #if HAS_PIPE_INPUT_STREAM