tree ebf7088fe7dfd3a59c1eaf1998714fa3cad47d1d
parent 2a615abee9fb7c56458ce2ee58390c39ba9ccec4
author Zhizhou Yang <zhizhouy@google.com> 1549403167 -0800
committer Zhizhou Yang <zhizhouy@google.com> 1549403167 -0800

Make libthread-db.h file only be compiled with C

GDB 8.2 will use C++ to compile in Android, and it will cause the
problem that extern variables from libthread_db will be compiled into
C++ symbols and cause a linker error.

Fixed this by adding a macro to check whether we are using C++.

Bug: 123031421
Test: GDB 8.2 linked correctly.
Change-Id: I660147a4199e88f394ad0fbe365960f4691678d8