Error when trying to cross compile distribution

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

        Hello,

        I'm trying to cross compile -current with:
./build.sh -U -m sparc distribution

        Host is linux/amd64, target is netbsd/sparc.

        All tools and obj were created but ./build.sh distribution hangs with:

ln -sf libsqlite3.so.1.2 libsqlite3.so.1.tmp
mv -f libsqlite3.so.1.tmp libsqlite3.so.1
ln -sf libsqlite3.so.1.2 libsqlite3.so.tmp
mv -f libsqlite3.so.tmp libsqlite3.so
In file included from <stdin>:1:0:
/opt/home/bertrand/netbsd/src/external/public-domain/sqlite/lib/../dist/sqlite3.h:35:67: 
fatal error: stdarg.h: No such file or directory
 #include <stdarg.h>     /* Needed for the definition of va_list */
                                                                   ^
compilation terminated.
sed: 1: "s/@VERSION@/#": unterminated substitute in regular expression

*** Failed target:  sqlite3.pc
*** Failed command: (V=$( (echo '#include <sqlite3.h>'; echo 
SQLITE_VERSION) | 
/opt/home/bertrand/netbsd/src/obj/tooldir.Linux-3.12-1-amd64-x86_64/bin/sparc--netbsdelf-gcc 
-E 
-I/opt/home/bertrand/netbsd/src/external/public-domain/sqlite/lib/../dist - 
| tail -1 | tr -d '"') && 
/opt/home/bertrand/netbsd/src/obj/tooldir.Linux-3.12-1-amd64-x86_64/bin/nbsed 
-e s/@VERSION@/$V/ < 
/opt/home/bertrand/netbsd/src/external/public-domain/sqlite/lib/sqlite3.pc.in 
> sqlite3.pc)
*** Error code 1

	I have checked on releng.netbsd.org that my tree can be built without 
known error.

        What is my mistake ?

        Best regards,

        JKB