Restrict the use of _s (Annex K) functions to MSVC

These `_s` secure functions are introduced in C11 as optional bounds-checking interfaces, there is no guarantee that they are implemented/enabled by other compilers.
compiler-research · Jan 11, 2025 · 396d7a1 · 396d7a1
1 parent b93db9c
commit 396d7a1
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/lib/Interpreter/Compatibility.h b/lib/Interpreter/Compatibility.h
@@ -10,15 +10,15 @@
 #include "clang/Basic/Version.h"
 #include "clang/Config/config.h"
 
-#ifdef _WIN32
+#ifdef _MSC_VER
 #define dup _dup
 #define dup2 _dup2
 #define close _close
 #define fileno _fileno
 #endif
 
 static inline char* GetEnv(const char* Var_Name) {
-#ifdef _WIN32
+#ifdef _MSC_VER
   char* Env = nullptr;
   size_t sz = 0;
   getenv_s(&sz, Env, sz, Var_Name);

diff --git a/lib/Interpreter/CppInterOp.cpp b/lib/Interpreter/CppInterOp.cpp
@@ -3414,7 +3414,7 @@ namespace Cpp {
     int m_DupFD = -1;
 
   public:
-#ifdef _WIN32
+#ifdef _MSC_VER
     StreamCaptureInfo(int FD)
         : m_TempFile(
               []() {