"Header guard failure" build failure(s) — clang 3.6.0

PackageVersionSupposed error messageFull log Bug report
gltron 0.70final-12../../nebu/include/filesystem/nebu_filesystem.h:1:9: error: 'NEBU_FILE_SYSTEM_H' is used as a header guard here, followed by #define of a different macro [-Werror,-Wheader-guard] Log
libphone-ui-shr 0.1+git20130901-3./phoneui-phone-log.h:22:9: error: '_PHONEUI_PHONELOG_H' is used as a header guard here, followed by #define of a different macro [-Werror,-Wheader-guard] Log
sword 1.7.3+dfsg-2gbfredletterwords.h:23:9: error: 'GBFSREDLETTERWORDS_H' is used as a header guard here, followed by #define of a different macro [-Werror,-Wheader-guard] Log

3 errors