more compilation fixes on Mac OS X with llvm/gcc.
more compilation fixes on Mac OS X with llvm/gcc.

luisbarrancos/appleseed,Aakash1312/appleseed,Vertexwahn/appleseed,dictoon/appleseed,docwhite/appleseed,gospodnetic/appleseed,aytekaman/appleseed,pjessesco/appleseed,Vertexwahn/appleseed,Aakash1312/appleseed,docwhite/appleseed,glebmish/appleseed,aiivashchenko/appleseed,luisbarrancos/appleseed,est77/appleseed,Biart95/appleseed,pjessesco/appleseed,dictoon/appleseed,dictoon/appleseed,Biart95/appleseed,Aakash1312/appleseed,dictoon/appleseed,luisbarrancos/appleseed,Biart95/appleseed,est77/appleseed,aiivashchenko/appleseed,aytekaman/appleseed,aytekaman/appleseed,appleseedhq/appleseed,luisbarrancos/appleseed,aytekaman/appleseed,gospodnetic/appleseed,glebmish/appleseed,est77/appleseed,luisbarrancos/appleseed,aytekaman/appleseed,Aakash1312/appleseed,docwhite/appleseed,aiivashchenko/appleseed,gospodnetic/appleseed,Biart95/appleseed,Biart95/appleseed,gospodnetic/appleseed,pjessesco/appleseed,est77/appleseed,appleseedhq/appleseed,est77/appleseed,glebmish/appleseed,Vertexwahn/appleseed,gospodnetic/appleseed,docwhite/appleseed,dictoon/appleseed,pjessesco/appleseed,docwhite/appleseed,glebmish/appleseed,Vertexwahn/appleseed,appleseedhq/appleseed,Aakash1312/appleseed,aiivashchenko/appleseed,appleseedhq/appleseed,aiivashchenko/appleseed,Vertexwahn/appleseed,pjessesco/appleseed,appleseedhq/appleseed,glebmish/appleseed