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-rw-r--r--ext/standard/crypt_sha512.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/standard/crypt_sha512.c b/ext/standard/crypt_sha512.c
index ba9a639180..f78ff03981 100644
--- a/ext/standard/crypt_sha512.c
+++ b/ext/standard/crypt_sha512.c
@@ -53,6 +53,11 @@ extern char * __php_stpncpy(char *dst, const char *src, size_t len);
# define MAX(a, b) (((a) > (b)) ? (a) : (b))
#endif
+/* See #51582 */
+#ifndef UINT64_C
+# define UINT64_C(value) __CONCAT(value, ULL)
+#endif
+
/* Structure to save state of computation between the single steps. */
struct sha512_ctx
{