override defaults

Author: DmitriyMusatkin

builder/core/data.py

@@ -572,7 +572,13 @@ class PKG_TOOLS(Enum):
         'yum_compiler_packages': ['gcc', 'gcc-c++'],
 
         'versions': {
-            'default': {},
+            'default': {
+                'c': "gcc",
+                'cxx': "g++",
+                'compiler_packages': ['gcc', 'g++'],
+
+                'apt_compiler_packages': ['gcc', 'g++', 'libstdc++-dev'],
+            },
             '4.8': {
                 # ASan has been broken on 4.8 GCC version distributed on Ubuntu
                 # and will unlikely to get fixed upstream. so turn it off.