Re: [microblaze-uclinux] Adding regular open source progams to Petalinux - 'configure'

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi John,

John Mcgrath wrote:

> I’m looking into adding some useful programs to my petalinux setup –
> like php support for example.
> 
> As I’m sure you know, most open source programs come with a neat
> ‘configure’ program which auto-detects what the system has/supports,
> mainly by running various tests with gcc.
> 
> This then generates the makefile(s) which are used to compile the program.

[snip]

This is easy, take a look for example at petalinux-dist/user/ethtool

The general idea is a toplevel MAkefile that creates a bulid directory,
and calls ./configure with the appropriate cross-compilation settings.

The toplevel makefile also adds romfs: target so we know how to copy the
resulting executable into the root filesystem.

It's easiest when the target app supports so-called VPATH builds,
meaning that you can create a build subdir, cd into in, and do
../configure.  This way there's no clash between the uClinux makefile
that calls configure, and the makefile that is itself generated by
configure.

This sounds complicated, but re-read it and it will make sense! :)

Regards,

John
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