From ad16ae5c70778e6bfd6d30b17a3ad9b248b2a569 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 17 Nov 2022 10:24:29 -0500
Subject: VS: Recognize -std: flag in CMAKE_C_FLAGS in target with C++ sources

Extend commit b325484928 (VS: Fix C language standard in target with C++
sources, 2020-09-28, v3.19.0-rc1~74^2) to account for users placing a
`-std:` flag in `CMAKE_C_FLAGS`.
---
 Source/cmVisualStudio10TargetGenerator.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index 7e43bee..cd73551 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -3293,6 +3293,8 @@ bool cmVisualStudio10TargetGenerator::ComputeClOptions(
     this->GeneratorTarget->GetLanguages(languages, configName);
     if (languages.count("C")) {
       std::string flagsC;
+      this->LocalGenerator->AddLanguageFlags(
+        flagsC, this->GeneratorTarget, cmBuildStep::Compile, "C", configName);
       this->LocalGenerator->AddCompileOptions(flagsC, this->GeneratorTarget,
                                               "C", configName);
       Options optC(this->LocalGenerator, Options::Compiler,
-- 
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