[Nix-dev] linux/version.h

[Lluís Batlle]

That kind of check will not work, for example, cross-compiling.

Usually, the tests for header files are done using the C preprocessor
(gcc -E  - autoconf already finds it), giving it a source file
mentioning the header file. This kind of test would work in nix.

Maybe this will help as a message to the upstream developers?

2010/4/10  <maggesi at math.unifi.it>:
> Hi,
>
> I'm trying to update the nix expression for dmtcp (os-specific/linux/dmtcp).
> The new release of dmtcp has a configure script that check for the presence
> of linux/version.h in /usr/include and thus fails.
>
> More precisely, the test is generated by the following snippet in
> configure.ac:
>
> #if /usr/include/linux/version.h is missing, give up on configuring.
> AC_CHECK_HEADERS(linux/version.h,
>  [if ! readlink -e -q  /usr/include/linux/version.h > /dev/null; then
>   AC_MSG_ERROR(
>    [/usr/include/version.h not found: consider adding linux-libc-dev pkg])
>   fi],
>  [AC_MSG_ERROR(
>    [/usr/include/linux/version.h not found: consider adding linux-libc-dev
> pkg]
>   )])
>
>
> So my question is: what is the best way to solve this kind of problems?
> I suppose that I can circumvent the problem with some string replacement
> in the resulting configure script.
> However, if it is cheap enough, I would prefer that I can submit to
> mainstream developers.
>
> Thanks.
> Marco
>
>
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