GHC doesn't respect -optl and -optc in a couple of places

A legitimate use of -optl and -optc is to pass options that should always be passed to gcc, such as -B<something> if we're invoking gcc against a particular set of libraries. For this to work, we have to ensure that -optl and -optc options are always passed.

In joinObjectFiles, we don't add the options from -optl. I suspect that we don't want to just add them, because we also put the -l options in this list, so we should separate the two.

In mkExtraObj, we don't add the options from -optc.

Probably we should refactor things so that these options are automatically added by SysTools.runCc and friends, being careful about option ordering.

Trac metadata

Trac field	Value
Version	7.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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