Alexandre Julliard : configure: Use AS_VAR_IF to test variables where appropriate.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2a741324fea748efd8f9b734bda0d030d54c2755
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=2a741324fea748efd8f9b734bda0d030d54c2755

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Thu Jan 30 12:22:08 2014 +0100

configure: Use AS_VAR_IF to test variables where appropriate.

---

 aclocal.m4 |   47 +++----
 configure  |  436 ++++++++++++++++++++++++++++++------------------------------
 2 files changed, 240 insertions(+), 243 deletions(-)

Diff:   http://source.winehq.org/git/wine.git/?a=commitdiff;h=2a741324fea748efd8f9b734bda0d030d54c2755