[Libreoffice] make dev-install hangs

In this morning's clean build, make dev-install hangs at the following:

Multiprocessing build is finished
Maximal number of processes run: 1
make[1]: Leaving directory `/home/kyoshida/libo/master'
make[1]: Entering directory `/home/kyoshida/libo/master'
/home/kyoshida/libo/master/desktop/Library_spl.mk:53: 
[ WARN   ] !!!
[ WARN   ] !!! desktop/source/migration/migration is linked in by Library/libsofficeapp.so 
Library/libspllo.so
[ WARN   ] !!!
/home/kyoshida/libo/master/desktop/Library_unopkgapp.mk:58: 
[ WARN   ] !!!
[ WARN   ] !!! desktop/source/app/lockfile is linked in by Library/libsofficeapp.so 
Library/libunopkgapp.so
[ WARN   ] !!!
/home/kyoshida/libo/master/desktop/Executable_soffice.bin.mk:48: 
[ WARN   ] !!!
[ WARN   ] !!! desktop/source/app/main is linked in by Library/libsofficeapp.so 
Executable/soffice.bin
[ WARN   ] !!!
/home/kyoshida/libo/master/sax/Library_fastsax.mk:56: 
[ WARN   ] !!!
[ WARN   ] !!! sax/source/expatwrap/xml2utf is linked in by Library/expwrap.uno.so 
Library/fastsax.uno.so
[ WARN   ] !!!
/home/kyoshida/libo/master/vcl/StaticLibrary_vclmain.mk:49: 
[ WARN   ] !!!
[ WARN   ] !!! vcl/source/salmain/salmain is linked in by Library/libvcllo.so 
StaticLibrary/libvclmain.a
[ WARN   ] !!!

I didn't have this problem at yesterday's clean build & make dev-install
combo.  Does it ring a bell to anyone?

Regards,

Kohei

-- 
Kohei Yoshida, LibreOffice hacker, Calc