Fix building glibc master with NDEBUG and --with-cpu.

When building on i686, x86_64, and arm, and with NDEBUG, or --with-cpu
there are various variables and functions which are unused based on
these settings.

This patch marks all such variables with __attribute__((unused)) to
avoid the compiler warnings when building with the aformentioned
options.

1 files changed, 1 insertions, 1 deletions

diff --git a/math/atest-exp.c b/math/atest-exp.c
index ebacff594d..cde4019814 100644
--- a/math/atest-exp.c
+++ b/math/atest-exp.c
@@ -61,7 +61,7 @@ exp_mpn (mp1 ex, mp1 x)
    unsigned n;
    mp1 xp;
    mp2 tmp;
-   mp_limb_t chk;
+   mp_limb_t chk __attribute__ ((unused));
    mp1 tol;
 
    memset (xp, 0, sizeof (mp1));