toolchain/57200: cc and cxx symlinks are not present on llvm systems

[caleb.heydon%gmail.com@localhost]

>Number:         57200
>Category:       toolchain
>Synopsis:       cc and cxx symlinks are not present on llvm systems
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jan 27 20:20:01 +0000 2023
>Originator:     Caleb Heydon
>Release:        NetBSD-release-10
>Organization:
>Environment:
NetBSD arm64 10.0_BETA NetBSD 10.0_BETA (GENERIC64) #0: Thu Jan 26 22:42:30 EST 2023 caleb@fedora:/home/caleb/obj/sys/arch/evbarm/compile/GENERIC64 evbarm

>Description:
When compiling an llvm system, the cc and cxx symlinks are not present.

>How-To-Repeat:
Compile an llvm system with the following mk.conf:

MKGCC=no
MKLLVM=yes
HAVE_LLVM=yes
PKGSRC_COMPILER=clang
CLANGBASE=/usr

cc and cxx will not be present.

>Fix:
Modify the build process to create cc and cxx symlinks when using llvm.