fromFlags
The mcp.remap.* pair, or null when the flags don't describe a usable bundle. Half a pair, or a symbol dir with no MC_SYMBOLS in it, is rejected rather than half-honored, so the caller falls through to the auto-cache.
The mcp.remap.* pair, or null when the flags don't describe a usable bundle. Half a pair, or a symbol dir with no MC_SYMBOLS in it, is rejected rather than half-honored, so the caller falls through to the auto-cache.