dub.json dependencies per configuration?

[Arjan via Digitalmars-d-learn]

Snippet from: 
https://github.com/buggins/ddbc/blob/master/dub.json#L7

ddbc has a "dependencies" on "mysql-native": ">=0.0.12". But this 
is only true for "configurations": "MySQL".
Is it allowed to put the dependency within the configuration 
section for "MySQL?.

     "dependencies": {
         "mysql-native": ">=0.0.12"
     },
     "targetPath": "lib",
     "targetType": "staticLibrary",
     "configurations": [
         {
             "name": "full",
             "versions": ["USE_MYSQL", "USE_SQLITE", "USE_PGSQL"],
             "libs-posix": ["sqlite3", "pq"],
             "libs-windows": ["sqlite3", "libpq"],
             "copyFiles-windows-x86": [ "libs/win32/sqlite3.dll", 
"libs/win32/libpq.dll", "libs/win32/intl.dll" ],
             "sourceFiles-windows-x86" : [ 
"libs/win32/sqlite3.lib", "libs/win32/libpq.lib" ]
         },
         {
             "name": "MySQL",
             "versions": ["USE_MYSQL"]
         },
         {
             "name": "SQLite",
             "versions": ["USE_SQLITE"],
             "libs-posix": ["sqlite3"],
             "libs-windows": ["sqlite3"],
             "copyFiles-windows-x86": [ "libs/win32/sqlite3.dll" ],
             "sourceFiles-windows-x86" : [ 
"libs/win32/sqlite3.lib" ]
         },
         {
             "name": "PGSQL",
             "versions": ["USE_PGSQL"],
             "libs-posix": ["pq"],
             "libs-windows": ["libpq"],
             "copyFiles-windows-x86": [ "libs/win32/libpq.dll", 
"libs/win32/intl.dll" ],
             "sourceFiles-windows-x86" : [ "libs/win32/libpq.lib" ]
         }
     ]