toolchain/48833: build.sh don't work inside the directory "/common".

[netbsd%izyk.ru@localhost]

>Number:         48833
>Category:       toolchain
>Synopsis:       build.sh don't work inside the directory "/common".
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri May 23 07:25:01 +0000 2014
>Originator:     Ilia
>Release:        NetBSD 6.99.40
>Organization:
izyk
>Environment:
NetBSD 6.99.40 (GENERIC) #0: Tue May  6 04:20:54 UTC 2014  
builds%b2.netbsd.org@localhost:/home/builds/ab/HEAD/amd64/201405060250Z-obj/home/builds/ab/HEAD/src/sys/arch/amd64/compile/GENERIC
 amd64
>Description:
If build system with this command:
./build.sh -m amd64 -U -j4 -N0 -T /common/orig/amd64/B140522125912/tools -O 
/common/orig/amd64/B140522125912/obj release

build errors:

[...]

In file included from /common/orig/src/external/bsd/nvi/dist/regex/regex.h:46:0,
                 from 
/common/orig/src/external/bsd/nvi/dist/common/../common/common.h:31,
                 from /common/orig/src/external/bsd/nvi/dist/common/api.c:36:
./common_extern.h:85:26: error: unknown type name 'CL_PRIVATE'
 int cl_omesg __P((SCR *, CL_PRIVATE *, int));
                          ^
/common/orig/src/external/bsd/nvi/usr.bin/nvi/port.h:28:21: note: in definition 
of macro '__P'
 #define __P(protos) protos  /* ANSI C prototypes */
                     ^
./common_extern.h:234:25: error: unknown type name 'VCS'
 int cs_init __P((SCR *, VCS *));

[...]
>How-To-Repeat:
Put the source tree inside "/common" and try build the system.

For instance:
cd /common/orig/src

./build.sh -m amd64 -U -j4 -N0 -T /common/orig/amd64/tools -O 
/common/orig/amd64/obj release

>Fix: