Hi,
just compile with debugging symbols (ROOTBUILD = debug), then it should
work. At least it did it for me (after a small conversation with Fons).
The problem is for such a comparison, compile root with gcc also with
debugging information, otherwise icc will loose for sure.
Greetings,
Marc
André David wrote:
>Hi all,
>
>I was trying to see if icc is really faster than gcc when producing
>code, and what best than ROOT to check that?
>
>So I got the ROOT source, expecting I'd had to hack through the
>makefiles, when *grin* Makefile.linuxicc was there ready to use.
>
>So, ./configure linuxicc, gmake and *shrug* I got to something I believe
>is a cint problem:
>
>Generating dictionary eg/src/G__EG.cxx...
>utils/src/rootcint_tmp -f eg/src/G__EG.cxx -c eg/inc/TAttParticle.h
>eg/inc/TDatabasePDG.h eg/inc/TDecayChannel.h eg/inc/TGenerator.h
>eg/inc/TParticle.h eg/inc/TParticleClassPDG.h eg/inc/TParticlePDG.h
>eg/inc/TPrimary.h eg/inc/LinkDef.h
>Error: class,struct,union or type TRotation: not defined
>FILE:include/TRotation.h LINE:144
>Error: class,struct,union or type TRotation: not defined
>FILE:include/TRotation.h LINE:144
>Error: class,struct,union or type [] not defined
>FILE:include/TRotation.h LINE:144
>Note: File "eg/inc/TParticleClassPDG.h" already loaded
>Note: File "eg/inc/TParticlePDG.h" already loaded
>Warning: Error occured during reading source files
>Warning: Error occured during dictionary source generation
>!!!Removing eg/src/G__EG.cxx eg/src/G__EG.h !!!
>utils/src/rootcint_tmp: error loading headers...
>gmake: *** [eg/src/G__EG.cxx] Error 1
>
>Just, before checking inside include/TRotation.h lets see what gcc does.
>So, to be sure the directory is clean, I removed the root directory,
>untarred the thing again (call me paranoid) and ./configure linux,
>gmake. This goes without a hitch. So this got me wondering...
>
>FILE:include/TRotation.h LINE:144 reads:
>
>TRotation::TRotationRow TRotation::operator [] (int i) const {
>
>So, I changed it to read
>
>(TRotation::TRotationRow) (TRotation::operator [] (int i)) const {
>
>and gmake again. The error does not go away. It becomes simply:
>
>Error: class,struct,union or type TRotation: not defined
>FILE:include/TRotation.h LINE:145
>Warning: Unknown type TRotation::TRotationRow in function argument
>FILE:include/TRotation.h LINE:145
>
>Now this I do not understand. TRotation::TRotationRow is defined as a
>public nested class of TRotation. I just do not understand how gcc goes
>about this "problem", since the complaining party is
>utils/src/rootcint_tmp. Could it be a problem on the compilation of
>utils/src/rootcint_tmp? I have tried to get rootcint compiled with
>gcc/g++ but then I get linkage problems (known to icc).
>
>Can anyone comment on this problem, or in general: Has anyone got ROOT
>to compile with icc?
>
>Thanks,
>
>Andre
>
--
Dr. Marc Hemberger
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