ArchLinux == (AUR) fgrun 1.6.2-2 == build errors

-- The C compiler identification is GNU 4.7.2
-- The CXX compiler identification is GNU 4.7.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- version is 1 dot 6 dot 2
-- ignoring: \\.svn;Makefile.am;~$;
-- Boost version: 1.52.0
-- Found ZLIB: /usr/lib64/libz.so (found version "1.2.7")
-- Looking for XOpenDisplay in /usr/lib64/libX11.so;/usr/lib64/libXext.so
-- Looking for XOpenDisplay in /usr/lib64/libX11.so;/usr/lib64/libXext.so - found
-- Looking for gethostbyname
-- Looking for gethostbyname - found
-- Looking for connect
-- Looking for connect - found
-- Looking for remove
-- Looking for remove - found
-- Looking for shmat
-- Looking for shmat - found
-- Looking for IceConnectionNumber in ICE
-- Looking for IceConnectionNumber in ICE - found
-- Found X11: /usr/lib64/libX11.so
-- Found OpenGL: /usr/lib64/libGL.so
-- Found FLTK: /usr/lib64/libfltk_images.so;/usr/lib64/libfltk_forms.so;/usr/lib64/libfltk_gl.so;/usr/lib64/libGL.so;/usr/lib64/libfltk.so
-- Found osgText: /usr/lib64/libosgText.so
-- Found osgDB: /usr/lib64/libosgDB.so
-- Found osgParticle: /usr/lib64/libosgParticle.so
-- Found osgUtil: /usr/lib64/libosgUtil.so
-- Found osgViewer: /usr/lib64/libosgViewer.so
-- Found osgGA: /usr/lib64/libosgGA.so
-- Found osg: /usr/lib64/libosg.so
-- Found OpenThreads: /usr/lib64/libOpenThreads.so
-- Found OpenSceneGraph: /usr/lib64/libosgText.so;/usr/lib64/libosgDB.so;/usr/lib64/libosgParticle.so;/usr/lib64/libosgUtil.so;/usr/lib64/libosgViewer.so;/usr/lib64/libosgGA.so;/usr/lib64/libosg.so;/usr/lib64/libOpenThreads.so (found suitable version "3.0.1", minimum required is "2.8.1")
-- SimGear include directory: /usr/include
-- found SimGear version: 2.10.0 (needed 2.8.0)
CMake Error at CMakeModules/FindSimGear.cmake:118 (message):
  You have installed a mismatching SimGear version 2.10.0 instead of 2.8.0 as
  required by FlightGear.  When using multiple SimGear installations, please
  use 'SIMGEAR_DIR' to select the SimGear library location to be used.
Call Stack (most recent call first):
  CMakeLists.txt:90 (find_package)