build: enhance string comparisons
authorVíctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
Fri, 29 Jan 2016 10:14:34 +0000 (11:14 +0100)
committerVíctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
Tue, 2 Feb 2016 15:03:33 +0000 (16:03 +0100)
commitaf87f9056eb00a9da5ead566dd0585578a87d041
treee018c917f8008dda7f7223b36da47bedc78e5fff
parent1de5e4bcb01dacfdbb6b36b8839d4b636ba24976
build: enhance string comparisons

Add a 'x' as a prefix in string comparisons to watch out for edge cases where
the string is empty or undefined.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
configure.ac