I can’t build Bison because
msgfmtis not found. What should I do?
Like most GNU packages with internationalization support, that feature is turned on by default. If you have problems building in the po subdirectory, it indicates that your system’s internationalization support is lacking. You can re-configure Bison with --disable-nls to turn off this support, or you can install GNU gettext from ftp://ftp.gnu.org/gnu/gettext/ and re-configure Bison. See the file ABOUT-NLS for more information.