From 41f15193e5adfaaf9990b2d8d81bb0ec6c05572c Mon Sep 17 00:00:00 2001
From: Kyle Edwards <kyle.edwards@kitware.com>
Date: Wed, 27 Jul 2022 13:29:09 -0400
Subject: VERIFY_INTERFACE_HEADER_SETS: Fall back to global languages

If a target doesn't have any source files, fall back to the global
list of enabled languages to determine the language of the header
file to verify.

Fixes: #23774
---
 Source/cmGeneratorTarget.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'Source/cmGeneratorTarget.cxx')

diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index 8a7215b127..ee4d2e3c09 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -8662,6 +8662,12 @@ std::string cmGeneratorTarget::GenerateHeaderSetVerificationFile(
           languages->insert("C");
         }
       }
+
+      if (languages->empty()) {
+        std::vector<std::string> languagesVector;
+        this->GlobalGenerator->GetEnabledLanguages(languagesVector);
+        languages->insert(languagesVector.begin(), languagesVector.end());
+      }
     }
 
     if (languages->count("CXX")) {
-- 
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