On 12-01-06 10:33 AM, Mathieu Desnoyers wrote:
* Alexandre Montplaisir ([email protected]) wrote:
Use portable shell macros wherever possible.
Does it bring limitations as to what is the oldest
autoconf/automake/libtool versions we require ?
These are used in lttng-tools too. In both projects the README mentions:
- GNU autotools (automake >=1.10, autoconf >=2.50, autoheader >=2.50)
so it shouldn't be affected.
AS_IF, AS_ECHO and company will be useful if we want to port URCU to
Cygwin and/or MinGW.
Change the mfence check to actually check for the assembly function,
instead of relying on the architecture's name.
This check won't work as expected, because you can compile fine for a
target and have the mfence instruction in your code, the problem will
only show up at runtime.
Due to cross-compilation support, we cannot use this kind of check.
How is it different from the "amb" check that's already there? If I
understand correctly, we want to know if a feature if available on the
target, so that the library is compiled to use those instructions.
Like I mentioned in the other email, shouldn't we use target_cpu for
these cases then?
Thanks,
Mathieu
--
Alexandre Montplaisir
DORSAL lab,
École Polytechnique de Montréal
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