libgfortran: Use remove(3) instead of unlink(2) when deleting files.

testsuite:

2015-09-04  Janne Blomqvist  <jb@gcc.gnu.org>

	* gfortran.dg/read_dir.f90: Delete empty directory when closing
	rather than calling rmdir, cleanup if open fails.


libgfortran:

2015-09-04  Janne Blomqvist  <jb@gcc.gnu.org>

	* io/unix.h (delete_file): Remove prototype.
	* io/unix.c (delete_file): Remove function.
	* io/close.c (st_close): Replace delete_file and unlink with
	remove.
	* io/open.c (already_open): Replace unlink with remove.

From-SVN: r227472

gcc/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2015-09-04  Janne Blomqvist  <jb@gcc.gnu.org>
+
+	* gfortran.dg/read_dir.f90: Delete empty directory when closing
+	rather than calling rmdir, cleanup if open fails.
+
 2015-09-03  Bill Schmidt  <wschmidt@vnet.linux.ibm.com>
 
 	* gcc.target/powerpc/vec-mult-char-1.c: New test.

gcc/testsuite/gfortran.dg/read_dir.f90

@@ -7,13 +7,14 @@ program bug
    integer ios
    call system('[ -d junko.dir ] || mkdir junko.dir')
    open(unit=10, file='junko.dir',iostat=ios,action='read',access='stream')
-   if (ios.ne.0) call abort
-   read(10, iostat=ios) c
-   if (ios.ne.21) then 
-      close(10)
+   if (ios.ne.0) then
       call system('rmdir junko.dir')
       call abort
    end if
-   close(10)
-   call system('rmdir junko.dir')
+   read(10, iostat=ios) c
+   if (ios.ne.21) then 
+      close(10, status='delete')
+      call abort
+   end if
+   close(10, status='delete')
 end program bug

libgfortran/ChangeLog

@@ -1,3 +1,11 @@
+2015-09-04  Janne Blomqvist  <jb@gcc.gnu.org>
+
+	* io/unix.h (delete_file): Remove prototype.
+	* io/unix.c (delete_file): Remove function.
+	* io/close.c (st_close): Replace delete_file and unlink with
+	remove.
+	* io/open.c (already_open): Replace unlink with remove.
+
 2015-09-02  Janne Blomqvist  <jb@gcc.gnu.org>
 
 	PR libfortran/67414

libgfortran/io/close.c

@@ -80,7 +80,7 @@ st_close (st_parameter_close *clp)
 	  if (status == CLOSE_DELETE)
             {
 #if HAVE_UNLINK_OPEN_FILE
-	      delete_file (u);
+	      remove (u->filename);
 #else
 	      path = strdup (u->filename);
 #endif
@@ -92,7 +92,7 @@ st_close (st_parameter_close *clp)
 #if !HAVE_UNLINK_OPEN_FILE
       if (path != NULL)
 	{
-	  unlink (path);
+	  remove (path);
 	  free (path);
 	}
 #endif

libgfortran/io/open.c

@@ -664,7 +664,7 @@ already_open (st_parameter_open *opp, gfc_unit * u, unit_flags * flags)
  
 #if !HAVE_UNLINK_OPEN_FILE
       if (u->filename && u->flags.status == STATUS_SCRATCH)
-	unlink (u->filename);
+	remove (u->filename);
 #endif
      free (u->filename);
      u->filename = NULL;

libgfortran/io/unix.c

@@ -1716,16 +1716,6 @@ flush_all_units (void)
 }
 
 
-/* delete_file()-- Given a unit structure, delete the file associated
- * with the unit.  Returns nonzero if something went wrong. */
-
-int
-delete_file (gfc_unit * u)
-{
-  return unlink (u->filename);
-}
-
-
 /* file_exists()-- Returns nonzero if the current filename exists on
  * the system */
 

libgfortran/io/unix.h

@@ -141,9 +141,6 @@ internal_proto(compare_file_filename);
 extern gfc_unit *find_file (const char *file, gfc_charlen_type file_len);
 internal_proto(find_file);
 
-extern int delete_file (gfc_unit *);
-internal_proto(delete_file);
-
 extern int file_exists (const char *file, gfc_charlen_type file_len);
 internal_proto(file_exists);