fcntl: port portions of fcntl to mingw

[gnulib.git] / lib / fcntl.in.h

diff --git a/lib/fcntl.in.h b/lib/fcntl.in.h
index 34ea1cf..1a4602b 100644 (file)
--- a/lib/fcntl.in.h
+++ b/lib/fcntl.in.h
@@ -59,6 +59,8 @@ extern "C" {
 # if @REPLACE_FCNTL@
 #  undef fcntl
 #  define fcntl rpl_fcntl
+# endif
+# if !@HAVE_FCNTL@ || @REPLACE_FCNTL@
 extern int fcntl (int fd, int action, ...);
 # endif
 #elif defined GNULIB_POSIXCHECK
@@ -104,14 +106,14 @@ extern int openat (int fd, char const *file, int flags, /* mode_t mode */ ...)
 }
 #endif
 
-/* Fix up the FD_* macros.  */
+/* Fix up the FD_* macros, only known to be missing on mingw.  */
 
 #ifndef FD_CLOEXEC
 # define FD_CLOEXEC 1
 #endif
 
 /* Fix up the supported F_* macros.  Intentionally leave other F_*
-   macros undefined.  */
+   macros undefined.  Only known to be missing on mingw.  */
 
 #ifndef F_DUPFD_CLOEXEC
 # define F_DUPFD_CLOEXEC 0x40000000
@@ -121,6 +123,14 @@ extern int openat (int fd, char const *file, int flags, /* mode_t mode */ ...)
 # define GNULIB_defined_F_DUPFD_CLOEXEC 0
 #endif
 
+#ifndef F_DUPFD
+# define F_DUPFD 1
+#endif
+
+#ifndef F_GETFD
+# define F_GETFD 2
+#endif
+
 /* Fix up the O_* macros.  */
 
 #if !defined O_DIRECT && defined O_DIRECTIO