From 9365455c78cb66c8115d889e73afe0defd7bd670 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 15 Feb 2024 08:56:03 -0500
Subject: zstd: Fix compilation with Oracle Studio compiler on Solaris

The compiler does not have `<stdalign.h>`, but does have `_Alignof`:

* https://docs.oracle.com/cd/E77782_01/html/E77788/gnxfh.html#OSSCGgnyfx
---
 Utilities/cmzstd/lib/common/compiler.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Utilities/cmzstd/lib/common/compiler.h b/Utilities/cmzstd/lib/common/compiler.h
index 73f8d01..d07e189 100644
--- a/Utilities/cmzstd/lib/common/compiler.h
+++ b/Utilities/cmzstd/lib/common/compiler.h
@@ -265,6 +265,10 @@
  * due to a limitation in the kernel source generator */
 #  define ZSTD_ALIGNOF(T) __alignof(T)
 
+# elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
+/* Oracle Studio */
+#  define ZSTD_ALIGNOF(T) _Alignof(T)
+
 # elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
 /* C11 support */
 #  include <stdalign.h>
-- 
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