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Detect OS version when running on RHEL/CentOS 5.x

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These versions only have /etc/redhat-release, not any of the newer
files.
This commit is contained in:
Roland Kaufmann 2013-09-11 22:49:00 +02:00 committed by Bård Skaflestad
parent a41b5e140e
commit 90723230b0
1 changed files with 3 additions and 0 deletions
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3
cmake/Modules/UseSystemInfo.cmake
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@ -39,6 +39,7 @@ function (distro_name varname)
file (GLOB has_os_release /etc/os-release)
file (GLOB has_lsb_release /etc/lsb-release)
file (GLOB has_sys_release /etc/system-release)
file (GLOB has_redhat_release /etc/redhat-release)
set (_descr)
# start with /etc/os-release,
# see <http://0pointer.de/blog/projects/os-release.html>
@ -52,6 +53,8 @@ function (distro_name varname)
if (NOT _descr)
if (NOT has_sys_release STREQUAL "")
file (READ /etc/system-release _descr)
elseif (NOT has_redhat_release STREQUAL "")
file (READ /etc/redhat-release _descr)
else (NOT has_sys_release STREQUAL "")
# no yet known release file found
set (_descr "unknown")