Specifying VPF instructions for ARM?

[Jeff Gold <jgold at us dot ncipher dot com>]

I'm using GCC to cross compile code for ARM but am running into trouble
with floating point formats.  The ARM architecture seems to have two
kinds of instructions for floating point emulation, VFP and FPA, and
these cannot be mixed within an executable.  Some versions of GCC seem
to produce one kind and some produce the other.  This proves to be a
problem when attempting to link libraries and executable object files
created with different GCC installations.

I have studied the description of ARM specific GCC options in the
texinfo page and searched both google and the gcc-help list archives.
Nothing I've found seems to indicate how to ask GCC to use a particular
floating point format.  I also posted a summary of this problem to 
gcc-help@gcc.gnu.org over a month ago but have not recieved a response.

Can anyone tell me if there is a command line option I've missed?  Or if 
there is a way to specify which kind of floating point instructions 
should be generated when configuring GCC?  Failing that, does anyone 
know of a more appropriate forum where questions of this sort have a 
chance of being answered?

Here are some additional details about the problem.  I use the same 
CFLAGS for compiling object files for the library and the executable, 
but different GCC versions.  The errors occur at link time
and look like this:

xscale-elf-gcc -O3 -Wall -Wpointer-arith -Wwrite-strings \
  -Wstrict-prototypes -Wmissing-prototypes -Werror \
  -mapcs-32 -msoft-float -mlittle-endian -mcpu=strongarm \
  -nostdinc -fno-builtin \
  -I/path/to/headers -I. -o program.o -c ./program.c
xscale-elf-gcc -O3 -Wall -Wpointer-arith -Wwrite-strings \
  -Wstrict-prototypes -Wmissing-prototypes -Werror \
  -mapcs-32 -msoft-float -mlittle-endian -mcpu=strongarm \
  -nostdinc -fno-builtin \
  -I/path/to/headers -I. -o utilities.o -c ./utilities.c
xscale-elf-ld -warn-common -nostdlib -Ttext 0x800000 -Tdata 0x900000 \
  -o program.elf program.o utilities.o \
  /path/to/libs/libsomething.a
xscale-elf-ld: ERROR: /path/to/libs/libsomething.a(one.o) uses VFP
instructions, whereas program.elf does not
File format not recognized: failed to merge target specific data of file
/path/to/libs/libsomething.a(one.o)
xscale-elf-ld: ERROR: /path/to/libs/libsomething.a(two.o) uses VFP
instructions, whereas program.elf does not
File format not recognized: failed to merge target specific data of file
/path/to/libs/libsomething.a(two.o)