/usr/bin/ld: cannot find -l-lpthread

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http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20131227T055300Z.diff.html.gz

make[1]: Entering directory
/extdisk/chkbuild/chkbuild/tmp/build/<buildtime>/ruby' compiling ./enc/encdb.c linking encoding encdb.so /usr/bin/ld: cannot find -l-lpthread collect2: error: ld returned 1 exit status make[1]: *** [.ext/i686-linux/enc/encdb.so] Error 1 make[1]: Leaving directory /extdisk/chkbuild/chkbuild/tmp/build//ruby’
make: *** [enc] Error 2
exit 2

boron
$B$@$1$H$$$&E@$r:,5r$H$9$k!“3NG’$7$F$$$J$$4*$H$7$F$O!”(Benable-shared
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