configure: Add sanity checking for environment variables
authorDavid Bremner <david@tethera.net>
Tue, 19 May 2015 20:48:24 +0000 (22:48 +0200)
committerDavid Bremner <david@tethera.net>
Sat, 23 May 2015 18:28:06 +0000 (20:28 +0200)
commitccd7c0b0e6222ca41670eb9a29cc1f9346dad772
treea5b1157dac6519a7209f7a12ac137700168e16ef
parentc5ef2dc448659110adc8ab324ae166683d21988f
configure: Add sanity checking for environment variables

Passing in environment variables incompatible with the compiler may
cause other parts of the configure script to fail in hard to
understand ways, so we abort early.
configure