On 02/16/2017 08:07 AM, Chuck Atkins wrote:
> That being said, I do think we should revisit the use of O3 by default
> given the safety issues surounding it.
The following is just my opinion:
In my experience if O3 fails it is a bug in the compiler, which should
be fixed and somebody has to find
On 2017-02-16 10:07-0500 Chuck Atkins wrote:
Hi YC,
cmake version on fedora 25: 3.6.2
Fedora is specifically patching CMake in the RPM spec file to reduce the
gcc flag from O3 to O2 so it's the distributuion's packaging making that
change, not CMake itself. If you download and build the
INFO
"${CMAKE_C_FLAGS_RELWITHDEBINFO}")
string(REPLACE "${flag_orig}" "${flag_dest}" CMAKE_CXX_FLAGS_RELWITHDEBINFO
"${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
endmacro()
Best regards,
YC
----- Mail original -----
De: "Chuck Atkins" <chuck.atk...@kit
Hi YC,
> cmake version on fedora 25: 3.6.2
>
Fedora is specifically patching CMake in the RPM spec file to reduce the
gcc flag from O3 to O2 so it's the distributuion's packaging making that
change, not CMake itself. If you download and build the source from
cmake.org then you'll get O3 as
uot;<CMAKE_${lang}_COMPILER>
-S -o ")
So, as you can see, on Fedora 25, there are no -O3 flags by default.
YC
- Mail original -
De: "Dan Liew" <d...@su-root.co.uk>
À: "ycollette nospam" <ycollette.nos...@free.fr>
Cc: "cmake" <
Hi,
On 16 February 2017 at 09:06, wrote:
> Hello,
>
> My question is related to CMAKE_*_FLAGS.
> I've got a project under linux fedora 24 and, in release mode, this project
> compiles with the -O2 flag.
> But when I switched to other platform (ubuntu, fedora 16 - I
Hello,
My question is related to CMAKE_*_FLAGS.
I've got a project under linux fedora 24 and, in release mode, this project
compiles with the -O2 flag.
But when I switched to other platform (ubuntu, fedora 16 - I now this one is
quite old but I need to compile on this platform), this default