Downgrading: clang x86_64 3.3-0.6.rc3.fc19 fedora 17 M clang-analyzer x86_64 3.3-0.6.rc3.fc19 fedora 75 k clang-devel x86_64 3.3-0.6.rc3.fc19 fedora 1.1 M clang-doc noarch 3.3-0.6.rc3.fc19 fedora 337 k cpp x86_64 4.8.1-1.fc19 fedora 5.9 M gcc x86_64 4.8.1-1.fc19 fedora 16 M gcc-base-debuginfo x86_64 4.8.1-1.fc19 fedora-debuginfo 2.7 M gcc-c++ x86_64 4.8.1-1.fc19 fedora 7.1 M gcc-debuginfo x86_64 4.8.1-1.fc19 fedora-debuginfo 218 M gcc-gfortran x86_64 4.8.1-1.fc19 fedora 6.6 M libgfortran x86_64 4.8.1-1.fc19 fedora 271 k libgomp i686 4.8.1-1.fc19 fedora 97 k libgomp x86_64 4.8.1-1.fc19 fedora 94 k libquadmath x86_64 4.8.1-1.fc19 fedora 164 k libquadmath-devel x86_64 4.8.1-1.fc19 fedora 27 k libstdc++ i686 4.8.1-1.fc19 fedora 289 k libstdc++ x86_64 4.8.1-1.fc19 fedora 276 k libstdc++-devel x86_64 4.8.1-1.fc19 fedora 1.5 M libtool x86_64 2.4.2-16.fc19 fedora 588 k llvm x86_64 3.3-0.6.rc3.fc19 fedora 1.2 M llvm-debuginfo x86_64 3.3-0.6.rc3.fc19 fedora-debuginfo 113 M llvm-devel x86_64 3.3-0.6.rc3.fc19 fedora 1.4 M llvm-doc noarch 3.3-0.6.rc3.fc19 fedora 99 k llvm-libs x86_64 3.3-0.6.rc3.fc19 fedora 6.7 M On pbdsl3: yum downgrade gcc* cpp libtool cpp clang* libstdc++* libgomp llvm* libquadmath* libgfortran On pbdsl4: yum --exclude=gcc*,gcc-c++*,cpp*,clang*,libtool,llvm*,libstdc++*,libquadmath*,libgfortran,libgomp upgrade