Win32 port: where are .a libraries in 8.3

Hope I'm addressing this to the correct list...

In 8.2 (and earlier, I presume) there are .a libraries useful when developing
and linking with the Mingw C compiler (the MS .lib variety are also there).
The .a libs seem to be missing in the 8.3 install while the MS libraries are
all there.

Is there any way to get them back?

C:\Program Files\PostgreSQL\8.2\lib>ls *.a
2008-03-17  05:23a              55,110 libecpg.a
2008-03-17  05:23a              30,188 libecpg_compat.a
2008-03-17  05:22a              64,178 libpgport.a
2008-03-17  05:23a              57,050 libpgtypes.a
2008-03-17  05:22a           3,510,324 libpostgres.a
2008-03-17  05:22a              98,348 libpq.a

C:\Program Files\PostgreSQL\8.3\lib>ls *.a
File Not Found

I'm using the official Win32 installer downloaded from postgresql.org.

Thanks,
Michael Hipp
Heber Springs, Arkansas, USA