undefined reference in libm.a (__gtsf2,__ltsfw,__lesf2,__eqsf2,__nesf2...)

[Cliff Tsai]

Hi:
    I'm testing libm on my m68k platform,but 
have following errors.
    I can't find any 
document about this symbol,what do they mean?
    And how to solve these?Thanks!
 
C:/cygwin/tools/m68k-coff/m68k-coff/lib/m68000/libm.a(wf_acos.o): In 
function `acosf': /src/newlib/newlib-1.9.0/newlib/libm/math/wf_acos.c:37: 
undefined reference to `__gtsf2'
C:/cygwin/tools/m68k-coff/m68k-coff/lib/m68000/libm.a(wf_acosh.o): In 
function `acoshf': /src/newlib/newlib-1.9.0/newlib/libm/math/wf_acosh.c:38: 
undefined reference to `__ltsf2'
 
C:/cygwin/tools/m68k-coff/m68k-coff/lib/m68000/libm.a(wf_atan2.o): In 
function `atan2f': /src/newlib/newlib-1.9.0/newlib/libm/math/wf_atan2.c:38: 
undefined reference to `__eqsf2'
 
C:/cygwin/tools/m68k-coff/m68k-coff/lib/m68000/libm.a(wf_log10.o): In 
function `log10f': /src/newlib/newlib-1.9.0/newlib/libm/math/wf_log10.c:37: 
undefined reference to 
`__lesf2' /src/newlib/newlib-1.9.0/newlib/libm/math/wf_log10.c:51: undefined 
reference to `__eqsf2'
 
C:/cygwin/tools/m68k-coff/m68k-coff/lib/m68000/libm.a(erf_lgamma.o): In 
function 
`sin_pif': /src/newlib/newlib-1.9.0/newlib/libm/math/erf_lgamma.c:118: 
undefined reference to `__nesf2'