BUILD: xxhash: silence a build warning on Solaris + gcc-5.5

Testing an undefined macro emits warnings due to -Wundef, and we have
exactly one such case in xxhash:

  include/import/xxhash.h:3390:42: warning: "__cplusplus" is not defined [-Wundef]
   #if ((defined(sun) || defined(__sun)) && __cplusplus) /* Solaris includes __STDC_VERSION__ with C++. Tested with GCC 5.5 */

Let's just prepend "defined(__cplusplus) &&" before __cplusplus to
resolve the problem. Upstream is still affected apparently.
This commit is contained in:
Willy Tarreau 2024-04-17 09:41:30 +02:00
parent 1c944eab08
commit 99c918ed8a
1 changed files with 1 additions and 1 deletions

View File

@ -3387,7 +3387,7 @@ XXH_PUBLIC_API XXH64_hash_t XXH64_hashFromCanonical(XXH_NOESCAPE const XXH64_can
/* === Compiler specifics === */
#if ((defined(sun) || defined(__sun)) && __cplusplus) /* Solaris includes __STDC_VERSION__ with C++. Tested with GCC 5.5 */
#if ((defined(sun) || defined(__sun)) && defined(__cplusplus) && __cplusplus) /* Solaris includes __STDC_VERSION__ with C++. Tested with GCC 5.5 */
# define XXH_RESTRICT /* disable */
#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* >= C99 */
# define XXH_RESTRICT restrict