From 2771429bcce34cbe69ea77142318b28947f35c2d Mon Sep 17 00:00:00 2001
From: Denis Feklushkin <feklushkin.denis@gmail.com>
Date: Mon, 3 Jun 2024 18:35:18 +0300
Subject: [PATCH] Treat .c files as C headers

---
 source/dpp/expansion/package.d | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/source/dpp/expansion/package.d b/source/dpp/expansion/package.d
index 4fb332d7..1a7b6e1c 100644
--- a/source/dpp/expansion/package.d
+++ b/source/dpp/expansion/package.d
@@ -295,7 +295,9 @@ from!"clang".Cursor mergeLeaves(from!"clang".Cursor lhs, from!"clang".Cursor rhs
 bool isCppHeader(in from!"dpp.runtime.options".Options options, in string headerFileName) @safe pure {
     import std.path: extension;
     if(options.parseAsCpp) return true;
-    return headerFileName.extension != ".h";
+    return
+        headerFileName.extension != ".h" &&
+        headerFileName.extension != ".c";
 }