pkg/54991: Cannot compile PostgreSQL 11 on -current with dtrace option

[rares.aioanei%gmail.com@localhost]

>Number:         54991
>Category:       pkg
>Synopsis:       Cannot compile PostgreSQL 11 on -current with dtrace option
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Feb 20 15:05:00 +0000 2020
>Originator:     Rares Aioanei
>Release:        HEAD / 20th of February 2020
>Organization:
>Environment:
NetBSD localhost 9.99.47 NetBSD 9.99.47 (GENERIC) #0: Wed Feb 19 21:49:48 UTC 2020  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64

>Description:
When trying to compile psql 11 with dtrace and llvm options, I get this : 

==========================================================================
=> Tool dependency bison>=1.0: found bison-3.4.2
=> Tool dependency gmake>=3.81: found gmake-4.2.1nb1
=> Build dependency cwrappers>=20150314: found cwrappers-20180325
=> Full dependency postgresql11-client>=11.7: NOT found
=> Verifying reinstall for ../../databases/postgresql11-client
=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Building for postgresql11-client-11.7
/usr/pkg/bin/gmake -C ../../src/backend generated-headers
gmake[1]: Entering directory '/home/arares/pkgsrc/databases/postgresql11-client/work/postgresql-11.7/src/backend'
/usr/pkg/bin/gmake -C catalog distprep generated-header-symlinks
gmake[2]: Entering directory '/home/arares/pkgsrc/databases/postgresql11-client/work/postgresql-11.7/src/backend/catalog'
gmake[2]: Nothing to be done for 'distprep'.
gmake[2]: Nothing to be done for 'generated-header-symlinks'.
gmake[2]: Leaving directory '/home/arares/pkgsrc/databases/postgresql11-client/work/postgresql-11.7/src/backend/catalog'
/usr/pkg/bin/gmake -C utils distprep generated-header-symlinks
gmake[2]: Entering directory '/home/arares/pkgsrc/databases/postgresql11-client/work/postgresql-11.7/src/backend/utils'
gmake[2]: Nothing to be done for 'distprep'.
/usr/sbin/dtrace -C -h -s probes.d -o probes.h.tmp
dtrace: failed to compile script probes.d: "/usr/lib/dtrace/psinfo.d", line 46: failed to copy type of 'pr_arglen': Type information is in parent and unavailable
gmake[2]: *** [Makefile:57: probes.h] Error 1
gmake[2]: Leaving directory '/home/arares/pkgsrc/databases/postgresql11-client/work/postgresql-11.7/src/backend/utils'
gmake[1]: *** [Makefile:151: submake-utils-headers] Error 2
gmake[1]: Leaving directory '/home/arares/pkgsrc/databases/postgresql11-client/work/postgresql-11.7/src/backend'
gmake: *** [../../src/Makefile.global:370: submake-generated-headers] Error 2
*** Error code 2

Stop.
make[2]: stopped in /home/arares/pkgsrc/databases/postgresql11-client
*** Error code 1

Stop.
make[1]: stopped in /home/arares/pkgsrc/databases/postgresql11-client
*** Error code 1

Stop.
make: stopped in /home/arares/pkgsrc/databases/postgresql11

>How-To-Repeat:

>Fix: