From: lawadr <3211473+lawadr@users.noreply.github.com>
Date: Mon, 20 Mar 2023 17:46:35 +0000 (+0000)
Subject: Add member to cpu_features struct if empty
X-Git-Tag: 2.1.0-beta1~21
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39008be53b94f6ad7704bff27b4ecd6a8067d2ef;p=thirdparty%2Fzlib-ng.git

Add member to cpu_features struct if empty

When WITH_OPTIM is off, the cpu_features struct is empty. This is not
allowed in standard C and causes a build failure with various compilers,
including MSVC.

This adds a dummy char member to the struct if it would otherwise be
empty.
---

diff --git a/cpu_features.h b/cpu_features.h
index 14eb19a75..462671a18 100644
--- a/cpu_features.h
+++ b/cpu_features.h
@@ -29,6 +29,8 @@ struct cpu_features {
     struct power_cpu_features power;
 #elif defined(S390_FEATURES)
     struct s390_cpu_features s390;
+#else
+    char empty;
 #endif
 };