diff -r 24416137cda7 -r 1e8900fc8ddb targets/toolchain_makefile.py
--- a/targets/toolchain_makefile.py	Mon Jun 26 19:42:42 2017 +0300
+++ b/targets/toolchain_makefile.py	Tue Jun 27 13:30:48 2017 +0300
@@ -110,7 +110,7 @@
                              }
             
             # clean sequence of multiple whitespaces 
-            cmd = re.sub(r"[ ]+", " ", target.getCommand())
+            cmd = re.sub(r"[ ]+", " ", target.getCommand().strip())
 
             command = [ token % beremizcommand for token in cmd.split(' ')]