Handle LD_LIBRARY_PATH not being defined.

Should fix the bots after r225890.

llvm-svn: 225919

diff --git a/compiler-rt/test/asan/lit.cfg b/compiler-rt/test/asan/lit.cfg
index a2899ea..8be7062 100644 (file)
--- a/compiler-rt/test/asan/lit.cfg
+++ b/compiler-rt/test/asan/lit.cfg
@@ -19,7 +19,7 @@ def push_dynamic_library_lookup_path(config, new_path):
     dynamic_library_lookup_var = 'LD_LIBRARY_PATH'
 
   new_ld_library_path = os.path.pathsep.join(
-    (new_path, config.environment[dynamic_library_lookup_var]))
+    (new_path, config.environment.get(dynamic_library_lookup_var, '')))
   config.environment[dynamic_library_lookup_var] = new_ld_library_path
 
 # Setup config name.