1 files changed, 6 insertions, 1 deletions
diff --git a/check.py b/check.py
index 1cc3eea17..4c446d954 100755
--- a/check.py
+++ b/check.py
@@ -49,7 +49,12 @@ WATERFALL_BUILD_DIR = os.path.join(BASE_DIR, 'wasm-install')
 BIN_DIR = os.path.abspath(os.path.join(WATERFALL_BUILD_DIR, 'wasm-install', 'bin'))
 
 os.environ['BINARYEN'] = os.getcwd()
-os.environ['LD_LIBRARY_PATH'] += os.pathsep + 'lib' # find our dynamic libraries
+
+# find our dynamic libraries
+if os.environ.get('LD_LIBRARY_PATH'):
+  os.environ['LD_LIBRARY_PATH'] += os.pathsep + 'lib'
+else:
+  os.environ['LD_LIBRARY_PATH'] = 'lib'
 
 def fetch_waterfall():
   rev = open(os.path.join('test', 'revision')).read().strip()