[compiler-rt] [netbsd] Define _RTLD_SOURCE to fix build

The TLS base (LWP private pointer) functions are namespaced and
hidden i.e. inside the _RTLD_SOURCE namespace.

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
index cd50371..56d4b71 100644 (file)
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
@@ -28,6 +28,10 @@
 #include "sanitizer_placement_new.h"
 #include "sanitizer_procmaps.h"
 
+#if SANITIZER_NETBSD
+#define _RTLD_SOURCE  // Fast LWP private pointer getters in ThreadSelfTlsTcb().
+#endif
+
 #include <dlfcn.h>  // for dlsym()
 #include <link.h>
 #include <pthread.h>