<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">https://bugs.gentoo.org/944355
https://rt.cpan.org/Public/Bug/Display.html?id=165142
--- a/ToolBox.h
+++ b/ToolBox.h
@@ -93,10 +93,19 @@ typedef  Z_longword         *Z_longwordp
     #elif PERL_DARWIN
         #define boolean bool
     #else
-	typedef int boolean;
-	#ifndef I_STDBOOL
-	    enum { false, true };
-	#endif
+        typedef int boolean;
+        #ifndef I_STDBOOL
+          #if defined(__STDC_VERSION__) &amp;&amp; __STDC_VERSION__ &gt;= 199901L
+            #include &lt;stdbool.h&gt;
+          #else
+            #ifndef false
+              #define false 0
+            #endif
+            #ifndef true
+              #define true 1
+            #endif
+          #endif
+        #endif
     #endif
 #endif
 
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