From fcdd8e5da6f91ee794b1a270e688deaa1921d8ac Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Thu, 11 Jan 2024 20:19:48 -0500
Subject: [PATCH] Fix missing includes with multiple inheritance (#3819
 partial)

---
 src/V3EmitCHeaders.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/V3EmitCHeaders.cpp b/src/V3EmitCHeaders.cpp
index 4a9bfdb06..795193e5a 100644
--- a/src/V3EmitCHeaders.cpp
+++ b/src/V3EmitCHeaders.cpp
@@ -296,9 +296,9 @@ class EmitCHeader final : public EmitCConstInit {
     void emitAll(const AstNodeModule* modp) {
         // Include files required by this AstNodeModule
         if (const AstClass* const classp = VN_CAST(modp, Class)) {
-            if (classp->extendsp()) {
-                puts("#include \""
-                     + prefixNameProtect(classp->extendsp()->classp()->classOrPackagep())
+            for (const AstClassExtends* extp = classp->extendsp(); extp;
+                 extp = VN_AS(extp->nextp(), ClassExtends)) {
+                puts("#include \"" + prefixNameProtect(extp->classp()->classOrPackagep())
                      + ".h\"\n");
             }
         }