Move the iOSVersionMin string to a header so as to avoid a dangling pointer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156497 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 4 insertions, 1 deletions

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 86fef4fe69..2e2ec938f5 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -525,7 +525,6 @@ void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
     // go ahead as assume we're targeting iOS.
     if (OSXTarget.empty() && iOSTarget.empty())
       if (getDarwinArchName(Args) == "armv7") {
-        std::string iOSVersionMin;
         unsigned Major, Minor, Micro;
         getTriple().getiOSVersion(Major, Minor, Micro);
         llvm::raw_string_ostream(iOSVersionMin)
diff --git a/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h
index 8456514b2f..aabf25884c 100644
--- a/lib/Driver/ToolChains.h
+++ b/lib/Driver/ToolChains.h
@@ -205,6 +205,10 @@ private:
   /// initialized.
   std::string MacosxVersionMin;
 
+  /// The default ios-version-min of this tool chain; empty until
+  /// initialized.
+  std::string iOSVersionMin;
+
   bool hasARCRuntime() const;
   bool hasSubscriptingRuntime() const;