Translatable strings in .h file -- best way to resolve?

[Jeff Kletsky]

In src/libqof/qof/qofbookslots.h

<http://svn.gnucash.org/trac/browser/gnucash/trunk/src/libqof/qof/qofbookslots.h?rev=18464>

two #define statements were added

#define ACCOUNT_OPTIONS_SECTION "Accounts"
#define TRADING_ACCOUNTS_OPTION "Trading Accounts"

which need to be translatable (they are the option section and option 
name for Guile-driven options screens, so the are not only keys to the 
options KVP, but also rendered in the UI as the title on the tab and the 
name of the option). These are a bit funky as they are needed both in 
the C and the Guile world.

Presently, make-gnucash-potfiles.in does not look at .h files for 
translatable strings, so even after adding
#include <glib/gi18n.h>
and marking the strings, they don't make it into POTFILES.in

What approach is recommended for resolving this?

* Add an exception to make-gnucash-potfiles.in
* Use _(ACCOUNTS_OPTIONS_SECTION) and don't translate the raw define
* Change .h to .c and leave people wondering why a .c file is being 
#include-d
* Do something else I haven't thought of in a .c file

The first seems the cleanest, the second has the "advantage" of alerting 
later coders that this really isn't a constant across all locales.

Suggestions from the maintainers on coding style for this would be 
greatly appreciated.

-Jeff