ifndef indentation issue

[geoberle]

tabbed conditionals seem to be unsupported in make (or at least the make version i have locally). when using tabs to indent the ifndef for AKSCONFIG i get the following error.

AKSCONFIG=abc make sv-cluster

Makefile:41: *** "Must set AKSCONFIG". Stop

in order to not start an argument about "tabs vs spaces" and about "how many spaces", i removed the tabs. the makefile syntax seems to be fine with it.

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[mjlshen]

Ah trying to fix this in #112 - it's not intended to be all the way to the left