[nginx] Configure: fixed building libatomic test.

[Sergey Kandaurov]

details:   https://hg.nginx.org/nginx/rev/31fe21f04103
branches:  stable-1.26
changeset: 9259:31fe21f04103
user:      Edgar Bonet <bonet at grenoble.cnrs.fr>
date:      Thu May 16 11:15:10 2024 +0200
description:
Configure: fixed building libatomic test.

Using "long *" instead of "AO_t *" leads either to -Wincompatible-pointer-types
or -Wpointer-sign warnings, depending on whether long and size_t are compatible
types (e.g., ILP32 versus LP64 data models).  Notably, -Wpointer-sign warnings
are enabled by default in Clang only, and -Wincompatible-pointer-types is an
error starting from GCC 14.

Signed-off-by: Edgar Bonet <bonet at grenoble.cnrs.fr>

diffstat:

 auto/lib/libatomic/conf |  2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diffs (12 lines):

diff -r 73770db03e73 -r 31fe21f04103 auto/lib/libatomic/conf
--- a/auto/lib/libatomic/conf	Tue May 28 17:14:08 2024 +0400
+++ b/auto/lib/libatomic/conf	Thu May 16 11:15:10 2024 +0200
@@ -19,7 +19,7 @@ else
                       #include <atomic_ops.h>"
     ngx_feature_path=
     ngx_feature_libs="-latomic_ops"
-    ngx_feature_test="long  n = 0;
+    ngx_feature_test="AO_t  n = 0;
                       if (!AO_compare_and_swap(&n, 0, 1))
                           return 1;
                       if (AO_fetch_and_add(&n, 1) != 1)