Some of the last-minute changes in commit
f0f2c0c1aef were apparently
not captured.
# Even though restrict is in C99 and should be supported by all
-# supported compilers, but this macro is useful because it will prefer
-# a spelling that also works in C++ (often __restrict). (restrict is
+# supported compilers, this test is useful because it will prefer a
+# spelling that also works in C++ (often __restrict). (restrict is
# not part of the C++ standard.)
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C/C++ restrict keyword" >&5
$as_echo_n "checking for C/C++ restrict keyword... " >&6; }