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Spell/Files/EXPORTS

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EXPORTS

This file is used to provide persistent variables of a spell to another spell.

For example here's EXPORTS file from "xorg-server" spell: 

XORG_SERVER_OPTS

which is used later in DEPENDS of "x11vnc" spell: 

persistent_read xorg-server XORG_SERVER_OPTS XORG_SERVER_OPTS &&

if list_find "$XORG_SERVER_OPTS" "--enable-record"; then
  config_query_option X11VNC_OPTS \
                      "Enable xrecord extension support?" y \
                      "--with-xrecord" \
                      "--without-xrecord"
fi

Note: since the variables are read from within a spell's tablet, don't forget to add a REPAIR^all^EXPORTS file if needed.