google-gflags: move to aliases.nix

google-gflags were renamed to gflags in 2012:
https://github.com/gflags/gflags/#25-january-2012

gflags.name will be updated in staging.

pkgs/development/libraries/science/math/caffe2/default.nix

@@ -1,6 +1,6 @@
 { stdenv, lib, config, fetchFromGitHub
 , cmake
-, glog, google-gflags, gtest
+, glog, gflags, gtest
 , protobuf, snappy
 , python, future, six, python-protobuf, numpy, pydot
 , eigen
@@ -74,7 +74,7 @@ stdenv.mkDerivation rec {
   outputs = [ "bin" "out" ];
   propagatedBuildOutputs = [ ]; # otherwise propagates out -> bin cycle
 
-  buildInputs = [ glog google-gflags protobuf snappy eigen ]
+  buildInputs = [ glog gflags protobuf snappy eigen ]
     ++ lib.optional useCuda cudatoolkit
     ++ lib.optional useCudnn cudnn
     ++ lib.optional useOpenmp openmp

pkgs/development/libraries/science/math/or-tools/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, cmake, abseil-cpp, google-gflags, which
+{ stdenv, fetchFromGitHub, cmake, abseil-cpp, gflags, which
 , lsb-release, glog, protobuf, cbc, zlib
 , ensureNewerSourcesForZipFilesHook, python, swig
 , pythonProtobuf }:
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   configurePhase = ''
     cat <<EOF > Makefile.local
     UNIX_ABSL_DIR=${abseil-cpp}
-    UNIX_GFLAGS_DIR=${google-gflags}
+    UNIX_GFLAGS_DIR=${gflags}
     UNIX_GLOG_DIR=${glog}
     UNIX_PROTOBUF_DIR=${protobuf}
     UNIX_CBC_DIR=${cbc}
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
     python.pkgs.setuptools python.pkgs.wheel
   ];
   propagatedBuildInputs = [
-    abseil-cpp google-gflags glog protobuf cbc
+    abseil-cpp gflags glog protobuf cbc
     pythonProtobuf python.pkgs.six
   ];