Extend m4 as it is not guaranteed to be pulled by other dependencies.
Call toochain commands with explicit path, and simplify PATH as a
result.

you can extend component/numpy/openblas.cfg to build numpy with OpenBLAS.

This reverts commit d48851e9.

Turns out, "logger" command (with which this tool was developped) is not
actually using libc's syslog API, so is not representative of proper
syslog usage. Also, syslog API happens to be extremely painful to hook
(500 lines of libc code to fork because of direct internal accesses,
constants and static globals).
Syslog hooking will happen someday, just not this way.

slapos.core.git moved to lab.nexedi.cn and repository on git.erp5.org
made readonly. Update all referenced to old repository location:

    http://git.erp5.org/repos/slapos.core.git

->

    https://lab.nexedi.cn/nexedi/slapos.core.git

/reviewed-by trustme

/reviewed-by: TrustMe

* lab/master:
  Add Ivan's certificate.
  use slapos.cookbook 1.0.9

Add Ivan's certificate.

Please accept so I can start upload to schacache for Wendelin release.

See merge request !16

update cloudooo configuration as well.

also set RPATH appropriately.