backport build system: warn if kernel headers aren't there
authorJohannes Berg <johannes.berg@intel.com>
Mon, 15 Apr 2013 18:30:29 +0000 (20:30 +0200)
committerJohannes Berg <johannes.berg@intel.com>
Mon, 15 Apr 2013 18:33:16 +0000 (20:33 +0200)
commit90dcd0a18133c2d580826e8649103e1f33b00bfe
tree0bcf1d99d4d16963aa22bed568bf1cdb3354aa64
parent130354792bff05fd4c4561a1897c557e0d044828
backport build system: warn if kernel headers aren't there

When the kernel build system/configuration isn't present, warn
verbosely instead of later failing with crypting errors.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
backport/Makefile