Ruby

Avoid using @ in macro substitution that confuses FreeBSD make

making mjit_config.h
make: Unknown modifier ' '
make: Unclosed variable specification (expecting ')') for "Q" (value "") modifier
/bin/sh: Syntax error: end of file unexpected (expecting "}")
*** Error code 2

Stop.

The at sign probably conflicts the :@temp@string@ modifier syntax
supported by FreeBSD make.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62414 b2dd03c8-39d4-4d8f-98ff-823fe69b080e