* common.mk (mflags): pass make flags to sub-makes, for nmake
which cannot pass them by the environment variable.
* defs/gmake.mk (mflags): filter out -j option for sub-makes.
* template/exts.mk.tmpl (MFLAGS): extract MFLAGS from sub extmk
files for nmake.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57594 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* {cygwin,template}/GNUmakefile.in (MAKEFLAGS): remove -jN option
from MAKEFLAGS as well as MFLAGS.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55505 b2dd03c8-39d4-4d8f-98ff-823fe69b080e