libstdc++.exp (check_v3_target_fileio): Test lseek.

libstdc++-v3/
	* testsuite/lib/libstdc++.exp (check_v3_target_fileio): Test lseek.

From-SVN: r128772

libstdc++-v3/ChangeLog

+2007-09-25  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+	* testsuite/lib/libstdc++.exp (check_v3_target_fileio): Test lseek.
+
 2007-09-17  Benjamin Kosnik  <bkoz@redhat.com>
 	    Chalathip Thumkanon  <chalathip@gmail.com>
 

libstdc++-v3/testsuite/lib/libstdc++.exp

@@ -599,15 +599,20 @@ proc check_v3_target_fileio { } {
 	puts $f "int main ()"
 	puts $f "{"
 	puts $f "  int fd  = open (\".\", O_RDONLY);"
+	puts $f "  int ret = 0;"
 	puts $f "  if (fd == -1)"
 	puts $f "  {"
 	puts $f "    int err = errno;"
 	puts $f "    if (err == EIO || err == ENOSYS)"
-	puts $f "      return 1;"
+	puts $f "      ret = 1;"
 	puts $f "  }"
 	puts $f "  else"
+	puts $f "  {"
+	puts $f "    if (lseek (fd, 0, SEEK_CUR) == -1)"
+	puts $f "      ret = 1;"
 	puts $f "    close (fd);"
-	puts $f "  return 0;"
+	puts $f "  }"
+	puts $f "  return ret;"
 	puts $f "}" 
 	close $f