egcs-19990405 gets double constants wrong on alpha_dec_osf4.0

[Corey Kosak]

% cat test.c && gcc -v && gcc test.c && a.out
#include <stdio.h>

int main()
{
  double d=-1;
  printf("d is %g\n", d);
  return 0;
}
Reading specs from /afs/cs.cmu.edu/project/cmcl-kosak/various-gcc/egcs-19990405/
alpha_dux40/lib/gcc-lib/alpha-dec-osf4.0d/egcs-2.93.17/specs
gcc version egcs-2.93.17 19990405 (gcc2 ss-980929 experimental)
d is 0