Correct comments.

[gnulib.git] / lib / ftruncate.c

diff --git a/lib/ftruncate.c b/lib/ftruncate.c
index d4c129a..4bfa431 100644 (file)
--- a/lib/ftruncate.c
+++ b/lib/ftruncate.c
@@ -1,7 +1,7 @@
 /* ftruncate emulations that work on some System V's.
    This file is in the public domain.  */
 
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif
 
@@ -11,9 +11,7 @@
 #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 +23,10 @@ ftruncate (fd, length)
 
 #  include <sys/stat.h>
 #  include <errno.h>
-#  if HAVE_UNISTD_H
-#   include <unistd.h>
-#  endif
+#  include <unistd.h>
 
 int
-ftruncate (fd, length)
-     int fd;
-     off_t length;
+ftruncate (int fd, off_t length)
 {
   struct flock fl;
   struct stat filebuf;
@@ -75,9 +69,7 @@ ftruncate (fd, length)
 #  if HAVE_CHSIZE
 
 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;