X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fftruncate.c;h=ff7d11b090a4f41760885dd15cbbd00e344c80fe;hb=34ebad3df7a99eea326f9170f2517b5d23873d1b;hp=d4c129a18f991506b0957a8a19b5910404827678;hpb=67f394c1d2be473276ccd5e071f986511a13e212;p=gnulib.git

diff --git a/lib/ftruncate.c b/lib/ftruncate.c
index d4c129a18..ff7d11b09 100644
--- a/lib/ftruncate.c
+++ b/lib/ftruncate.c
@@ -1,9 +1,10 @@
 /* ftruncate emulations that work on some System V's.
    This file is in the public domain.  */
 
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
+
+/* Specification.  */
+#include <unistd.h>
 
 #include <sys/types.h>
 #include <fcntl.h>
@@ -11,9 +12,7 @@
 #ifdef F_CHSIZE
 
 int
-ftruncate (fd, length)
-     int fd;
-     off_t length;
+ftruncate (int fd, off_t length)
 {
   return fcntl (fd, F_CHSIZE, length);
 }
@@ -25,14 +24,9 @@ ftruncate (fd, length)
 
 #  include <sys/stat.h>
 #  include <errno.h>
-#  if HAVE_UNISTD_H
-#   include <unistd.h>
-#  endif
 
 int
-ftruncate (fd, length)
-     int fd;
-     off_t length;
+ftruncate (int fd, off_t length)
 {
   struct flock fl;
   struct stat filebuf;
@@ -72,12 +66,10 @@ ftruncate (fd, length)
 }
 
 # else /* not F_CHSIZE nor F_FREESP */
-#  if HAVE_CHSIZE
+#  if HAVE_CHSIZE                      /* native Windows, e.g. mingw */
 
 int
-ftruncate (fd, length)
-     int fd;
-     off_t length;
+ftruncate (int fd, off_t length)
 {
   return chsize (fd, length);
 }
@@ -85,14 +77,9 @@ ftruncate (fd, length)
 #  else /* not F_CHSIZE nor F_FREESP nor HAVE_CHSIZE */
 
 #   include <errno.h>
-#   ifndef errno
-extern int errno;
-#   endif
 
 int
-ftruncate (fd, length)
-     int fd;
-     off_t length;
+ftruncate (int fd, off_t length)
 {
   errno = EIO;
   return -1;