Re: Internal make command Macro to identify linux/os distribution.

[Martin Sebor]

Gautam Shejwalkar wrote:
> Hi Dave,
>
> Thank you for your quick reply.
>
> Yes, I was referring to the distro. Actually based on the distro I want 
> to decide which rpm package needs to be installed. B'coz only in uname 
> -r we get the information on the distro. I am not sure if there are any 
> other commands available for checking the distro type.
> Any way the solution which you have mentioned is a good one.

The file /etc/*-release identifies the Linux distribution.
Here's a pretty extensive list:
    http://linuxmafia.com/faq/Admin/release-files.html

Martin

> Regards,
> -SG
>
> On Tue, Sep 9, 2008 at 3:59 PM, Dave Korn <address@hidden 
> <mailto:address@hidden>> wrote:
>
>     Gautam Shejwalkar wrote on 09 September 2008 08:52:
>
>      > Hi,
>      >
>      > Is there any internal command or macro available to identify on which
>      > Linux distribution the make is running. I know one way of finding
>     is to
>      > run 'unake -r' and then compare it with the know string. But if
>     there is
>      > any better way or solution which make provides it will great.
>
>      Nah, there's nothing built in.  A lot of makefiles don't even care what
>     system they're running on; in the GNU world, configure scripts
>     (specifically
>     config.guess) work it out and define variables on the make command-line
>     appropriately; and make is cross-system, so can't assume it's even
>     running on
>     Linux at all.
>
>      (BTW, you said 'distribution', which means Red hat or Ubuntu or
>     Debian or
>     whatever, but "uname -r" tells you which kernel version you're
>     running.  I
>     assume you really mean kernel version rather than distro, so you can
>     take care
>     of kernel build system and internal ABI differences.)
>
>      So just go ahead and take the simple solution: at the start of your
>     makefile
>
>     KERNELVERSION:=$(shell uname -r)
>
>     and then use make's string match functions to check what you need to
>     know.
>     Note that it's important to use ':=' instead of just plain '='
>     otherwise make
>     launches a fresh shell and re-runs the uname command every time you
>     refer to
>     $(KERNELVERSION)!
>
>
>
>        cheers,
>          DaveK
>     --
>     Can't think of a witty .sigline today....
>
>
>
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