edit CentOS 6 setup instructions

README.md

@@ -92,7 +92,7 @@ appreciated.  Technical details on how to send messages to Dory are provided
 [here](doc/sending_messages.md).  Support for [running Dory inside a Docker
 container](Docker) is also available.  Dory requires at least version 0.8 of
 Kafka, and has been tested on versions 0.8, 0.9, and 0.10.  It runs on Linux,
-and has been tested on CentOS versions 7 and 6.5, and Ubuntu versions 16.04
+and has been tested on CentOS versions 7 and 6.8, and Ubuntu versions 16.04
 LTS, 15.04 LTS, 14.04.1 LTS, and 13.10.
 
 Dory is the successor to [Bruce](https://github.com/ifwe/bruce), and is
@@ -108,7 +108,7 @@ things you would like to see in future versions of Dory, please add them
 
 To get Dory working, you need to set up a build environment.  Currently,
 instructions are available for [CentOS 7](doc/centos_7_env.md),
-[CentOS 6.5](doc/centos_6_5_env.md),
+[CentOS 6.8](doc/centos_6_8_env.md),
 [Ubuntu (16.04 LTS, 15.04 LTS, 14.04.1 LTS, and 13.10)](doc/ubuntu_env.md),
 and [Debian 8](doc/debian_8_env.md).
 

doc/build_install.md

@@ -4,7 +4,7 @@ Once you have finished [setting up your build environment](../README.md#setting-
 you are ready to build Dory.  If you are building on CentOS 6, remember to set
 your `PATH` and `LD_LIBRARY_PATH` environment variables and activate your
 Python virtualenv environment before building, as detailed
-[here](centos_6_5_env.md).  The first step is to clone Dory's Git repository:
+[here](centos_6_8_env.md).  The first step is to clone Dory's Git repository:
 
 ```
 git clone https://github.com/dspeterson/dory.git
@@ -59,7 +59,7 @@ For CentOS 6, the steps are identical except that instead of
 The `--import_path` option tells the SCons build configuration to use the PATH
 environment variable setting from the external environment.  This is needed
 so that your customized PATH setting (as described
-[here](centos_6_5_env.md#building-and-installing-gcc-482)) is seen and the
+[here](centos_6_8_env.md#building-and-installing-gcc-482)) is seen and the
 newer version of gcc is used.  After performing the above steps, the path to
 the newly built Dory executable is now `out/release/dory/dory`.  If you omit
 `--release` above, you will create a debug build of Dory and the location of
@@ -124,7 +124,7 @@ rpm -Uvh out/pkg/rpm/dory-1.0.6.38.g66c5a2d-1.el6.x86_64.rpm
 
 Otherwise, you can copy the Dory executable to a location of your choice, such
 as `/usr/bin`.  If you are running on CentOS 6, remember that the gcc482 RPM
-package described [here](centos_6_5_env.md#building-and-installing-gcc-482)
+package described [here](centos_6_8_env.md#building-and-installing-gcc-482)
 must be installed, and `LD_LIBRARY_PATH` must contain `/opt/gcc/lib64` in the
 shell that you execute Dory from.  If you built your RPM package using the
 `rpm_noconfig` option described above, or you built Dory directly using SCons,

doc/centos_6_5_env.md → doc/centos_6_8_env.md

@@ -1,8 +1,8 @@
-## Setting Up a CentOS 6.5 Build Environment
+## Setting Up a CentOS 6.8 Build Environment
 
 Dory is implemented in C++, and makes extensive use of C++11 features.
 Therefore, it must be built using a more recent version of gcc than what CentOS
-6.5 provides.  Likewise, a newer version of Python is required to support
+6.8 provides.  Likewise, a newer version of Python is required to support
 Dory's SCons-based Python build scripts.  Some RPM packages are also needed,
 which may be installed as follows:
 
@@ -110,9 +110,9 @@ Now proceed to
 
 -----
 
-centos_6_5_env.md: Copyright 2014 if(we), Inc.
+centos_6_8_env.md: Copyright 2014 if(we), Inc.
 
-centos_6_5_env.md is licensed under a Creative Commons Attribution-ShareAlike
+centos_6_8_env.md is licensed under a Creative Commons Attribution-ShareAlike
 4.0 International License.
 
 You should have received a copy of the license along with this work. If not,