-CURRENT cross compilation hangs with fatal error: pass-instances.def: No such file or directory

[BERTRAND Joël <joel.bertrand%systella.fr@localhost>]

	Hello,

	I'm trying to build HEAD/201701040710Z from sources (as I'm looking for 
a fix to use agr over VPN). I crossbuild NetBSD/alpha on a Linux/amd64 
server with :

./build.sh -m alpha -U -x -O ../obj-alpha/ -T ../tools-alpha/ 
distribution kernel=GENERIC

and build process aborts with :

#    create  backend/alpha.d
CC=/export/home/bertrand/netbsd/netbsd-cross/current/src/../tools-alpha/bin/alpha--netbsd-c++ 
/export/home/bertrand/netbsd/netbsd-cross/current/src/../tools-alpha/bin/nbmkdep 
-f alpha.d.tmp  --      -I. 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/usr.bin/backend/../gcc/arch/alpha 
-DIN_GCC -DHAVE_CONFIG_H 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/. 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/../include 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/../libcpp/include 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/../libdecnumber 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/../libdecnumber/dpd 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/../libbacktrace 
-DTARGET_NAME=\"alpha--netbsd\" 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/libgcc 
-I/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/usr.bin/backend/../../lib/libgcc/libgcov/arch/alpha 
--sysroot=/export/home/bertrand/netbsd/netbsd-cross/current/src/../obj-alpha/destdir.alpha 
-DLOCALEDIR=\"/usr/share/locale\" -DNETBSD_NATIVE -I. 
-DENABLE_SHARED_LIBGCC 
/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/config/alpha/alpha.c 
&&  mv alpha.d.tmp alpha.d
In file included from 
/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/config/alpha/alpha.c:93:0:
/export/home/bertrand/netbsd/netbsd-cross/current/src/external/gpl3/gcc/dist/gcc/pass_manager.h:125:30: 
fatal error: pass-instances.def: No such file or directory
compilation terminated.
nbmkdep: compile failed.

	There is no pass-instances.def in src tree.

	I haven't tried to build NetBSD on my PWS500 itself as this compilation 
take a lot of time (two or three days...), I haven't tried also to 
crossbuild from a NetBSD server.

	I haven't found any solutio to fix this issue.

	Any idea ?

	Best regards,

	JKB