armel build failure (custom assembler)

Binary package hint: crafty

http://launchpadlibrarian.net/52497892/buildlog_ubuntu-maverick-armel.crafty_23.2-1_FAILEDTOBUILD.txt.gz

In file included from crafty.c:14:
thread.c: In function 'ThreadStop':
lock.h:63: error: impossible constraint in 'asm'
lock.h:63: error: impossible constraint in 'asm'
lock.h:63: error: impossible constraint in 'asm'
lock.h:63: error: impossible constraint in 'asm'
lock.h:63: error: impossible constraint in 'asm'
lock.h:63: error: impossible constraint in 'asm'
lock.h:63: error: impossible constraint in 'asm'
lock.h:63: error: impossible constraint in 'asm'
lock.h:63: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
lock.h:80: error: impossible constraint in 'asm'
In file included from crafty.c:13:
search.c: In function 'Search':
search.c:18: warning: 'first_tried' may be used uninitialized in this function
make[3]: *** [crafty.o] Error 1
make[3]: Leaving directory `/build/buildd/crafty-23.2'
make[2]: *** [crafty-make] Error 2
make[2]: Leaving directory `/build/buildd/crafty-23.2'
make[1]: *** [linux-generic] Error 2