lib/52802: POSIX lgammal missing in -lm

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>Number:         52802
>Category:       lib
>Synopsis:       POSIX lgammal missing in -lm
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Dec 09 20:40:00 +0000 2017
>Originator:     Kamil Rytarowski
>Release:        NetBSD 8.99.8 amd64
>Organization:
TNF
>Environment:
NetBSD chieftec 8.99.8 NetBSD 8.99.8 (GENERIC) #1: Thu Dec  7 02:50:00 CET 2017  root@chieftec:/public/netbsd-root/sys/arch/amd64/compile/GENERIC amd64
>Description:
lgammal is missing in -lm as defined in POSIX.
>How-To-Repeat:
$ nm /usr/lib/libm.so|grep lgamma                                                                                            
00000000000126f5 T __ieee754_lgamma_r
0000000000011e89 T __ieee754_lgammaf_r
000000000000d8f9 T lgamma
000000000000d868 T lgamma_r
000000000000d7c7 T lgammaf
000000000000d72d T lgammaf_r
>Fix:
Implement lgammal.