Trivial macro not expanded in kernel spec file %build

[Panu Matilainen]

On 06/07/2011 05:23 PM, Martin Langhoff wrote:
> I am hacking on a slighly modified kernel spec file for an OLPC arm
> test kernel. While chasing strange build errors, I find that
> %{image_install_path} isn't always being expanded.
>
> The resulting build script looks like
>
>     http://fpaste.org/LQwR/#82
>
> where %{image_install_path}, defined earlier as 'boot' hasn't been expanded.
>
> Any debugging hints?

Hard to say without the entire spec, but one typical cause of "sometimes 
works sometimes doesn't" issues with macros are %define's inside macro 
{} blocks, which "work" until the first parametrized macro is called, 
and after that it doesn't (due to an ancient flaw in the macro engine). 
Replacing the %define inside {} with %global helps in this case.

Another possibility that comes to mind is funny side-effects from 
BuildArch which can cause similar effects, but this time use of %global 
being the problem: https://bugzilla.redhat.com/show_bug.cgi?id=593363

	- Panu -