libraries/lvtk: Fixed build with boost-1.59.

Signed-off-by: David Spencer <baildon.research@googlemail.com>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

libraries/lvtk/lvtk.SlackBuild

@@ -55,10 +55,11 @@ find -L . \
  \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
   -o -perm 511 \) -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
- -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
 CFLAGS="$SLKCFLAGS" \
-CXXFLAGS="$SLKCFLAGS" \
+CXXFLAGS="$SLKCFLAGS -std=c++11" \
+LDFLAGS="-lboost_system" \
 ./waf configure \
 	--prefix=/usr \
 	--libdir=/usr/lib$LIBDIRSUFFIX \