Problem during root installation

ROOT
1

Hello,

I’m trying to install root from source. This message happens during the installation

ad -DUSE_ROOT_ERROR -MMD -MP -o math/mathcore/src/MixMaxEngine.o -c /home/kritsadak/Documents/root-6.05.02/math/mathcore/src/MixMaxEngine.cxx
/home/kritsadak/Documents/root-6.05.02/math/mathcore/src/mixmax.h: Assembler messages:
/home/kritsadak/Documents/root-6.05.02/math/mathcore/src/mixmax.h:197: Error: unsupported instruction `cvtsi2sd’
make: *** [math/mathcore/src/MixMaxEngine.o] Error 1

Then, the installation stops. I install root-6.05.02 on Ubuntu 14.04 LTS 32 bit on VMware player. Could you help me solve the problem.

Thanks for your help.

2

Hello,

thanks for posting this.
This is probably due to an issue with the inline assembly used by the generator.
We are looking into this.

Cheers,
Danilo

3

Hi,

this has been fixed now in the head of ROOT.
Thanks again for reporting.

Danilo

4

Sorry for not being specific enough: if you want to patch your sources and continue your compilation you can apply this commit to your sources:
root.cern.ch/gitweb?p=root.git; … 37a5bf5672

Cheers,
Danilo

5

Hello,

I apologize for the silly question, but I do have the same problem as Kittiman.
What does it mean that I can [quote] apply this commit to your sources[/quote]?
What should I do in practice?

Thank you
Cheers
Paola

6

Thank you. The problem is solved.

7

I replaced the old mixmax.h coming with source with the corrected mixmax.h from the link. Then, recompile the source and it works.

8

Thank you very much for the explanation :slight_smile:

Cheers
Paola