waitpid: Fix link error in C++ mode.

[pspp] / lib / sys_select.in.h

diff --git a/lib/sys_select.in.h b/lib/sys_select.in.h
index 11e20f4f7f9ed75b20ba7ed5cb6bbef6a7012572..77472bf5fd58850b9cb68476989c929bacf79c3f 100644 (file)
--- a/lib/sys_select.in.h
+++ b/lib/sys_select.in.h
@@ -18,6 +18,7 @@
 # if __GNUC__ >= 3
 @PRAGMA_SYSTEM_HEADER@
 # endif
+@PRAGMA_COLUMNS@
 
 /* On OSF/1, <sys/types.h> and <sys/time.h> include <sys/select.h>.
    Simply delegate to the system's header in this case.  */
@@ -43,6 +44,8 @@
 
 /* On OSF/1 4.0, <sys/select.h> provides only a forward declaration
    of 'struct timeval', and no definition of this type.
+   Also, MacOS X, AIX, HP-UX, IRIX, Solaris, Interix declare select()
+   in <sys/time.h>.
    But avoid namespace pollution on glibc systems.  */
 # ifndef __GLIBC__
 #  include <sys/time.h>
@@ -50,8 +53,9 @@
 
 /* On Solaris 10, <sys/select.h> provides an FD_ZERO implementation
    that relies on memset(), but without including <string.h>.
-   But avoid namespace pollution on glibc systems.  */
-# ifndef __GLIBC__
+   But in any case avoid namespace pollution on glibc systems.  */
+# if (defined __OpenBSD__ || defined __sun || defined __osf__ || defined __BEOS__) \
+     && ! defined __GLIBC__
 #  include <string.h>
 # endif
 
@@ -64,40 +68,48 @@
 #define _GL_SYS_SELECT_H
 
 #if !@HAVE_SYS_SELECT_H@
-
 /* A platform that lacks <sys/select.h>.  */
-
+/* Get the 'struct timeval' and 'fd_set' types and the FD_* macros
+   on most platforms.  */
+# include <sys/time.h>
+/* On native Windows platforms:
+   Get the 'fd_set' type.  Also, gnulib's <sys/socket.h> redefines select
+   so as to hide the declaration from <winsock2.h>.  */
 # include <sys/socket.h>
+#endif
 
-/* The definition of GL_LINK_WARNING is copied here.  */
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
+
+/* The definition of _GL_WARN_ON_USE is copied here.  */
 
-# ifdef __cplusplus
-extern "C" {
-# endif
 
-# if @GNULIB_SELECT@
-#  if @HAVE_WINSOCK2_H@ || @REPLACE_SELECT@
+#if @GNULIB_SELECT@
+# if @HAVE_WINSOCK2_H@ || @REPLACE_SELECT@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef select
 #   define select rpl_select
-extern int rpl_select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
 #  endif
-# elif @HAVE_WINSOCK2_H@
-#  undef select
-#  define select select_used_without_requesting_gnulib_module_select
-# elif defined GNULIB_POSIXCHECK
-#  undef select
-#  define select(n,r,w,e,t) \
-     (GL_LINK_WARNING ("select is not always POSIX compliant - " \
-                       "use gnulib module select for portability"), \
-      select (n, r, w, e, t))
+_GL_FUNCDECL_RPL (select, int,
+                  (int, fd_set *, fd_set *, fd_set *, struct timeval *));
+_GL_CXXALIAS_RPL (select, int,
+                  (int, fd_set *, fd_set *, fd_set *, struct timeval *));
+# else
+_GL_CXXALIAS_SYS (select, int,
+                  (int, fd_set *, fd_set *, fd_set *, struct timeval *));
 # endif
-
-# ifdef __cplusplus
-}
+_GL_CXXALIASWARN (select);
+#elif @HAVE_WINSOCK2_H@
+# undef select
+# define select select_used_without_requesting_gnulib_module_select
+#elif defined GNULIB_POSIXCHECK
+# undef select
+# if HAVE_RAW_DECL_SELECT
+_GL_WARN_ON_USE (select, "select is not always POSIX compliant - "
+                 "use gnulib module select for portability");
 # endif
-
 #endif
 
+
 #endif /* _GL_SYS_SELECT_H */
 #endif /* _GL_SYS_SELECT_H */
 #endif /* OSF/1 */