lgamma_r
--------

LSB specification:
 https://refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-lgamma-r.html

Documentation:

  * Special Functions (libc),

  * man lgamma_r.

Gnulib module: ---

Portability problems fixed by Gnulib:

Portability problems not fixed by Gnulib:

  * This function is missing on some platforms: Mac OS X 10.5 x86, Minix 3.1.8, IRIX 6.5, mingw, MSVC 14.