configure: Detect mpz_powm_sec() when built with -Werror

diff --git a/configure.ac b/configure.ac
index a3ab56fa41183739b56e08b7764fedf35752b5aa..ea09855ec6513a51c3edbbe68e7b89eac73c46d6 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -919,9 +919,9 @@ if test x$gmp = xtrue; then
                AC_COMPILE_IFELSE(
                        [AC_LANG_PROGRAM(
                                [[#include "gmp.h"]],
-                               [[void *x = mpz_powm_sec;]])],
+                               [[void *x  __attribute__((unused)); x = mpz_powm_sec;]])],
                        [AC_MSG_RESULT([yes]);
-                        AC_DEFINE([HAVE_MPZ_POWM_SEC], [], [have mpz_mown_sec()])],
+                        AC_DEFINE([HAVE_MPZ_POWM_SEC], [], [have mpz_powm_sec()])],
                        [AC_MSG_RESULT([no])]
                )
        else