[kf5-kross/f20] Use make install/fast

[Daniel Vrátil]

commit 96ad054fef981ed6a5693e53989a5daeffd6a09c
Author: Dan Vrátil <dvratil at redhat.com>
Date:   Wed Feb 11 16:33:26 2015 +0100

    Use make install/fast

 kf5-kross.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/kf5-kross.spec b/kf5-kross.spec
index 1e3db6d..fdc0ab8 100644
--- a/kf5-kross.spec
+++ b/kf5-kross.spec
@@ -91,7 +91,7 @@ popd
 make %{?_smp_mflags} -C %{_target_platform}
 
 %install
-%make_install -C %{_target_platform}
+make install/fast DESTDIR=%{buildroot} -C %{_target_platform}
 %find_lang kross5_qt --with-qt --all-name