1 files changed, 10 insertions, 1 deletions
diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h
index eaa6be1b0d..a76a773a64 100644
--- a/lib/Driver/ToolChains.h
+++ b/lib/Driver/ToolChains.h
@@ -333,7 +333,11 @@ public:
     return ToolChain::IsStrictAliasingDefault();
 #endif
   }
-  
+
+  virtual bool IsMathErrnoDefault() const {
+    return false;
+  }
+
   virtual bool IsObjCDefaultSynthPropertiesDefault() const {
     return true;
   }
@@ -459,6 +463,7 @@ class LLVM_LIBRARY_VISIBILITY OpenBSD : public Generic_ELF {
 public:
   OpenBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args);
 
+  virtual bool IsMathErrnoDefault() const { return false; }
   virtual bool IsObjCNonFragileABIDefault() const { return true; }
   virtual bool IsObjCLegacyDispatchDefault() const {
     llvm::Triple::ArchType Arch = getTriple().getArch();
@@ -477,6 +482,7 @@ class LLVM_LIBRARY_VISIBILITY FreeBSD : public Generic_ELF {
 public:
   FreeBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args);
 
+  virtual bool IsMathErrnoDefault() const { return false; }
   virtual bool IsObjCNonFragileABIDefault() const { return true; }
   virtual bool IsObjCLegacyDispatchDefault() const {
     llvm::Triple::ArchType Arch = getTriple().getArch();
@@ -495,6 +501,7 @@ class LLVM_LIBRARY_VISIBILITY NetBSD : public Generic_ELF {
 public:
   NetBSD(const Driver &D, const llvm::Triple& Triple, const ArgList &Args);
 
+  virtual bool IsMathErrnoDefault() const { return false; }
   virtual bool IsObjCNonFragileABIDefault() const { return true; }
   virtual bool IsObjCLegacyDispatchDefault() const {
     llvm::Triple::ArchType Arch = getTriple().getArch();
@@ -521,6 +528,8 @@ class LLVM_LIBRARY_VISIBILITY DragonFly : public Generic_ELF {
 public:
   DragonFly(const Driver &D, const llvm::Triple& Triple, const ArgList &Args);
 
+  virtual bool IsMathErrnoDefault() const { return false; }
+
   virtual Tool &SelectTool(const Compilation &C, const JobAction &JA,
                            const ActionList &Inputs) const;
 };