Unhelpful error on absence of gettext

[bobf]

When gettext is not installed the build output (for me) is as follows:

scons: Reading SConscript files ... Checking for pkg-config... (cached) yes Checking for libavformat... (cached) yes Checking for libavutil... (cached) yes Checking for libavcodec... (cached) yes Checking for sqlite3... (cached) yes Checking for libexif... (cached) yes Checking for id3tag... (cached) yes Checking for flac... (cached) yes Checking for ogg... (cached) yes Checking for vorbis... (cached) yes Checking for ogg... (cached) yes Checking for C library pthread... (cached) yes Checking for C library jpeg... (cached) yes Checking for C header file sys/inotify.h... (cached) yes Checking for C header file iconv.h... (cached) yes Checking for C header file libintl.h... (cached) yes
scons: done reading SConscript files.
scons: Building targets ...
Compiling: po/da.po
sh: check-domain: not found
Installing: po/da.mo => /usr/share/locale/da/LC_MESSAGES/minidlna.mo
scons: *** [/usr/share/locale/da/LC_MESSAGES/minidlna.mo] po/da.mo: No such file or directory
scons: building terminated because of errors.

I think you want to check that WhereIs("msgfmt") in tools/gettext.py doesn't return None and provide a more helpful error if it does.