On my machine cxxflags for variant=release is -O3 by default.
I need to change it to -O2.
Please advise how to proceed.
I am fine with defining a new variant as well, if someone could advise me on that.
views:
45answers:
2
A:
I think your best bet is to create a new variant, like this:
variant o2release : <cxxflags>-O2 <debug-symbols>off <inlining>full <runtime-debugging>off define=NDEBUG
usta
2010-09-03 15:34:03
Thanks. I had access to the feature.jam file and I was able to change O3 to O2 for optimization in gcc. That worked as well.
Humble Debugger
2010-09-03 17:19:09
Yep, that's also an option when local modification is OK for you :)
usta
2010-09-03 17:42:10
A:
Just use:
<variant>release:<cxxflags>-O2
as requirements on top-level project. Options specified with cxxflags are passed to gcc after all the other options, so -O3 will be overridden.
Vladimir Prus
2010-09-04 09:05:13