libstdc++: Ensure language linkage of std::__terminate()

This is needed because people still find it necessary to do:

  extern "C" {
  #include <stdlib.h>
  }

libstdc++-v3/ChangeLog:

	* include/bits/c++config (__terminate): Add extern "C++".

1 files changed, 1 insertions, 1 deletions

diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config
index b76ffeb..a649580 100644
--- a/libstdc++-v3/include/bits/c++config
+++ b/libstdc++-v3/include/bits/c++config
@@ -296,7 +296,7 @@ namespace std
 
   // This allows the library to terminate without including all of <exception>
   // and without making the declaration of std::terminate visible to users.
-  __attribute__ ((__noreturn__, __always_inline__))
+  extern "C++" __attribute__ ((__noreturn__, __always_inline__))
   inline void __terminate() _GLIBCXX_USE_NOEXCEPT
   {
     void terminate() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__noreturn__));