Check if Bundler::EnvironmentPreserver is defined
Bundler::EnvironmentPreserver
Only Bundler might be defined. EnvironmentPreserver and its BUNDLER_PREFIX would be defined together in the same file.
Bundler
EnvironmentPreserver
BUNDLER_PREFIX
Added by nobu (Nobuyoshi Nakada) about 2 years ago
Check if
Bundler::EnvironmentPreserveris definedOnly
Bundlermight be defined.EnvironmentPreserverand itsBUNDLER_PREFIXwould be defined together in the same file.