>>> Emerging : portage://dev-cpp/folly-2023.06.19.00-r1:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ useflag portage://dev-cpp/glog-0.6.0-r1 (gflags)

 └─step  2─┤ download  portage://app-arch/lz4-1.10.0-r1
             │           └─ file ─┤ 378.04 Kb  	 lz4-1.10.0.tar.gz
             │ download  portage://app-arch/snappy-1.2.2-r1
             │           └─ file ─┤ 1.06 Mb  	 snappy-1.2.2.tar.gz
             │ download  portage://app-text/doxygen-1.16.1
             │           └─ file ─┤ 8.55 Mb  	 doxygen-1.16.1.src.tar.gz
             │ download  portage://dev-build/b2-5.5.3
             │           └─ file ─┤ 1.17 Mb  	 b2-5.5.3.tar.gz
             │ download  portage://dev-cpp/folly-2023.06.19.00-r1
             │           └─ file ─┤ 3.67 Mb  	 folly-v2023.06.19.00.tar.gz
             │ download  portage://dev-cpp/gflags-2.2.2-r1
             │           └─ file ─┤ 96.39 Kb  	 gflags-2.2.2.tar.gz
             │ download  portage://dev-cpp/glog-0.6.0-r1
             │           └─ file ─┤ 188.74 Kb  	 glog-0.6.0.tar.gz
             │ download  portage://dev-lang/python-3.15.0
             │           └─ file ─┤ 34.04 Mb  	 Python-3.15.0.tar.xz
             │                    │ 4.52 Kb  	 python-gentoo-patches-3.15.0.tar.xz
             │ download  portage://dev-libs/boost-1.91.0-r2
             │           └─ file ─┤ 195.10 Mb  	 boost_1_91_0.tar.bz2
             │ download  portage://dev-libs/double-conversion-3.4.0
             │           └─ file ─┤ 6.71 Mb  	 double-conversion-3.4.0.tar.gz
             │ download  portage://dev-libs/libaio-0.3.113_p8
             │           └─ file ─┤ 48.81 Kb  	 libaio-0.3.113.tar.gz
             │                    │ 24.65 Kb  	 libaio_0.3.113-8.debian.tar.xz
             │ download  portage://dev-libs/libfmt-10.2.1-r2
             │           └─ file ─┤ 834.63 Kb  	 libfmt-10.2.1.tar.gz
             │ download  portage://dev-libs/spdlog-1.17.0
             │           └─ file ─┤ 275.20 Kb  	 spdlog-1.17.0.tar.gz
             │ download  portage://sys-libs/liburing-2.15
             │           └─ file ─┤ 537.30 Kb  	 liburing-2.15.tar.gz

 └─step  3─┤ install   portage://dev-cpp/gflags-2.2.2-r1
             │           └─ conf ─┤ USE = "-static-libs -test"
             │                    │ SLOT = "0/2.2"
             │ install   portage://app-arch/lz4-1.10.0-r1
             │           └─ conf ─┤ USE = "-static-libs -test"
             │                    │ SLOT = "0/1.10.0-meson"
             │ install   portage://app-arch/snappy-1.2.2-r1
             │           └─ conf ─┤ USE = "-test"
             │                    │ CPU_FLAGS_X86 = "avx avx2"
             │                    │ SLOT = "0/1.1"
             │ install   portage://dev-libs/double-conversion-3.4.0
             │           └─ conf ─┤ USE = "-test"
             │                    │ SLOT = "0/3"
             │ install   portage://dev-libs/libaio-0.3.113_p8
             │           └─ conf ─┤ USE = "-static-libs -test"
             │ install   portage://sys-libs/liburing-2.15
             │           └─ conf ─┤ USE = "-examples -static-libs -test"
             │                    │ SLOT = "0/2"
             │ install   portage://dev-lang/python-3.15.0
             │           └─ conf ─┤ USE = "gdbm* ncurses pgo* readline sqlite* ssl ensurepip (-jit) -bluetooth -build% -debug -examples -libedit
             │                    │          -tail-call-interp -test -tk -valgrind -verify-sig"
             │                    │ LLVM_SLOT = "21%*"
             │                    │ SLOT = "3.15"
             │ downgrade portage://dev-libs/libfmt-10.2.1-r2 (replaces pkg://dev-libs/libfmt-12.1.0)
             │           └─ conf ─┤ USE = "-test"
             │                    │ SLOT = "0/10.2.1"

 └─step  4─┤ install   portage://dev-build/b2-5.5.3
             │           └─ conf ─┤ USE = "-examples"
             │ run       portage://dev-cpp/gflags-2.2.2-r1
             │ run       portage://app-arch/lz4-1.10.0-r1
             │ run       portage://app-arch/snappy-1.2.2-r1
             │ run       portage://dev-libs/double-conversion-3.4.0
             │ run       portage://dev-libs/libaio-0.3.113_p8
             │ run       portage://sys-libs/liburing-2.15
             │ update    portage://dev-libs/spdlog-1.17.0 (replaces pkg://dev-libs/spdlog-1.17.0) (abi-rebuild: dev-libs/libfmt)
             │           └─ conf ─┤ USE = "-test"
             │                    │ SLOT = "0/1.17"

 └─step  5─┤ update    portage://app-text/doxygen-1.16.1 (replaces pkg://app-text/doxygen-1.16.1) (abi-rebuild: dev-libs/libfmt)
             │           └─ conf ─┤ USE = "-clang -debug -doc -dot -doxysearch -gui -test"
             │                    │ LLVM_SLOT = "22* -18 -19 -20 -21*"

 └─step  6─┤ install   portage://dev-cpp/glog-0.6.0-r1 (USE modified)
             │           └─ conf ─┤ USE = "libunwind gflags -llvm-libunwind -test"
             │                    │ SLOT = "0/1"
             │ install   portage://dev-libs/boost-1.91.0-r2
             │           └─ conf ─┤ USE = "bzip2 nls python* zlib context stacktrace -debug -doc -icu -lzma -mpi -numpy -test -test-full -tools -zstd"
             │                    │ PYTHON_TARGETS = "python3_14 -python3_12 -python3_13"
             │                    │ SLOT = "0/1.91.0"

 └─step  7─┤ run       portage://dev-cpp/glog-0.6.0-r1 (USE modified)
             │ run       portage://dev-libs/boost-1.91.0-r2

 └─step  8─┤ install   portage://dev-cpp/folly-2023.06.19.00-r1
             │           └─ conf ─┤ USE = "-llvm-libunwind -test"
             │                    │ SLOT = "0/2023.06.19.00"

 └─step  9─┤ run     portage://dev-cpp/folly-2023.06.19.00-r1

Total: 38 actions (1 useflag, 14 downloads, 11 installs, 2 updates, 1 downgrade, 9 runs), grouped into 9 steps.
       252.63 Mb to be downloaded.


>>> Assumptions taken during proving & planning:

  USE flag change (1 package):
  Add to /etc/portage/package.use:
    dev-cpp/glog gflags