undefined symbol '__fpclassify' on Windows

[kbkpbot]

As vlang/v#24272 , it need to fix math.h in tccbin.

I checked openlibm, there is no function's name __fpclassify(), but __fpclassifyd() for double.

So it need to patch include\math.h, replace __fpclassify with __fpclassifyd.

openlibm$ find . -type f | xargs grep __fpclassify
./include/openlibm_math.h:    ((sizeof (x) == sizeof (float)) ? __fpclassifyf(x) \
./include/openlibm_math.h:    : (sizeof (x) == sizeof (double)) ? __fpclassifyd(x) \
./include/openlibm_math.h:    : __fpclassifyl(x))
./include/openlibm_math.h:OLM_DLLEXPORT int     __fpclassifyd(double) __pure2;
./include/openlibm_math.h:OLM_DLLEXPORT int     __fpclassifyf(float) __pure2;
./include/openlibm_math.h:OLM_DLLEXPORT int     __fpclassifyl(long double) __pure2;
./src/s_fpclassify.c:__fpclassifyd(double d)
./src/s_fpclassify.c:__fpclassifyf(float f)
./src/s_fpclassify.c:__fpclassifyl(long double e)