Possible to reduce or disable locales?

[Stephen Casner]

I am working on implementing ELF format for the PDP11 in gcc and
binutils so that C++ code can be compiled.  You may dismiss this as
folly, but there is a sizable retro computing community interested in
the PDP11.  Clearly there will be a limit on how much code can be
squeezed into the 16-bit address space, so some language and library
features just won't be usable.

I have this working to the extent that I was able to compile and run a
small test program demonstrating virtual function calls.  To do this
required a couple of hacks, one of which was to disable the error in
gas when the relocation offset exceeded the address size.  That occurs
for the following files:

1000c   ./libstdc++-v3/src/c++11/cxx11-wlocale-inst.o
10058   ./msoft-float/libstdc++-v3/src/c++11/cxx11-wlocale-inst.o
10f1a   ./libstdc++-v3/src/c++11/cxx11-locale-inst.o
10f66   ./msoft-float/libstdc++-v3/src/c++11/cxx11-locale-inst.o
15140   ./libstdc++-v3/src/c++11/locale-inst.o
151aa   ./libstdc++-v3/src/c++11/wlocale-inst.o
152ac   ./msoft-float/libstdc++-v3/src/c++11/locale-inst.o
15300   ./msoft-float/libstdc++-v3/src/c++11/wlocale-inst.o

Is there a way to adjust the configuration to disable locales or maybe
to restrict to just the C locale?  I found --enable-clocale but none
of the choices there seem to be what I need.  (I also tried
--disable-clocale in case that might work.)

                                                        -- Steve