Message The /NAMES=LOWERCASE qualifier is no longer supported. The qualifier /NAMES=AS_IS will be used. Description While the C language has always required identifiers with internal linkage to be treated case sensitively. It traditionally permitted implementations to monocase identifiers with external linkage. Modern standards require C/C++ implementations to preserve the case of identifiers with external linkage. As VMS and other operating systems that traditionally implemented monocasing chose uppercase as the convention, /NAMES=LOWERCASE runs contrary both to the C and C++ standards and to traditional conventions. Continued support for this option interferes with support for compatibility between old code compiled with /NAMES=UPPERCASE and new code compiled with /NAMES=AS_IS. User Action Use /NAMES=AS_IS, making source code changes as needed.