Combine all library builds so only one libip is needed

[edwardhartnett]

After building this package, in the lib directory, I see several libraries. What's the difference between them?

/home/ed/NCEPLIBS/NCEPLIBS-ip/lib:
  total used in directory 2552 available 187783064
  drwxrwxr-x 3 ed ed   4096 Sep 30 06:49 .
  drwxrwxr-x 6 ed ed   4096 Sep 30 06:49 ..
  drwxrwxr-x 3 ed ed   4096 Sep 30 06:49 cmake
  -rw-r--r-- 1 ed ed 855098 Sep 30 06:48 libip_4.a
  -rw-r--r-- 1 ed ed 888482 Sep 30 06:48 libip_8.a
  -rw-r--r-- 1 ed ed 854490 Sep 30 06:48 libip_d.a

[GeorgeGayno-NOAA]

"4" is 4-byte floats/ints; "d" is 8-byte floats/4-byte ints; "8" is 8-byte floats/ints

[edwardhartnett]

OK, now I get it. ;-) Similar to #226

[edwardhartnett]

We need to end this practice, so we need to build just one of the libraries and let Fortran match the types.

I'm not sure what effect this will have on using applications...

[edwardhartnett]

OK, this is harder than I thought. See discussion in NOAA-EMC/NCEPLIBS-sp#76.

We will table this idea for now. I will close this issue.