diff -r dd94b9a68c61 -r 92932cd370a4 targets/toolchain_gcc.py
--- a/targets/toolchain_gcc.py	Tue Aug 15 16:01:18 2017 +0300
+++ b/targets/toolchain_gcc.py	Tue Aug 15 16:48:49 2017 +0300
@@ -186,7 +186,7 @@
 
                         status, result, err_result = ProcessLogger(
                                self.CTRInstance.logger,
-                               "\"%s\" -c \"%s\" -o \"%s\" %s %s"%
+                               "\"%s\" -c \"%s\" -o \"%s\" %s %s" %
                                    (self.compiler, CFile, objectfilename, Builder_CFLAGS, CFLAGS)
                                ).spin()
 
@@ -215,7 +215,7 @@
 
             status, result, err_result = ProcessLogger(
                    self.CTRInstance.logger,
-                   "\"%s\" %s -o \"%s\" %s"%
+                   "\"%s\" %s -o \"%s\" %s" %
                        (self.linker,
                         listobjstring,
                         self.exe_path,