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cms-gem-daq-project / gem-light-dqm

GEM light DQM code
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DQM doesn't build on cosmicstandtif #9

Closed jsturdy closed 8 years ago

jsturdy commented 8 years ago

Due to the hardcoded dependence on gcc 4.9.3, the DQM code was not building on cosmicstandtif I installed 4.9.3 and it failed due to some include errors We need to ensure that the environment on each machine is set up identically, but I don't know what's missing at the moment

mexanick commented 8 years ago

This is the error: In file included from /usr/include/errno.h:36:0, from /usr/local/gcc/4.9.3/include/c++/4.9.3/cerrno:41, from /usr/local/gcc/4.9.3/include/c++/4.9.3/ext/string_conversions.h:44, from /usr/local/gcc/4.9.3/include/c++/4.9.3/bits/basic_string.h:2849, from /usr/local/gcc/4.9.3/include/c++/4.9.3/string:52, from /usr/local/gcc/4.9.3/include/c++/4.9.3/bits/locale_classes.h:40, from /usr/local/gcc/4.9.3/include/c++/4.9.3/bits/ios_base.h:41, from /usr/local/gcc/4.9.3/include/c++/4.9.3/iomanip:40, from /home/mdalchen/cms-gem-daq-project/gem-light-dqm/dqm-root/../../gem-light-dqm/dqm-root/src/common/histogramLayeringExample.cxx:1: /usr/include/bits/errno.h:25:26: fatal error: /usr/local/gcc/4.9.3/lib/gcc/x86_64-unknown-linux-gnu/4.9.3/include-fixed/linux/errno.h: Permission denied

include <linux/errno.h>

It relates to the way how gcc is installed. I can see two issues:

  1. Permissions for /usr/local/gcc/4.9.3/lib/gcc/x86_64-unknown-linux-gnu/4.9.3/include-fixed/linux: ls -altrh /usr/local/gcc/4.9.3/lib/gcc/x86_64-unknown-linux-gnu/4.9.3/include-fixed/ drwxr-x---. 2 root root 4.0K Sep 6 13:49 linux
  2. The file errno.h under the folder above is actually missed.

So I don't think we should consider this as a bug. I think first we need to fix the permissions (at 904 it looks like drwxr-xr-x. 2 root root 4.0K Jun 13 09:23 linux Jared, could you please fix this as system administrator for that machine?

jsturdy commented 8 years ago

Yeah, that was it... However, the file itself is not there (nor on gem904daq01), which was why I was a bit confused. However, when changing the permissions, it now works fine...

mexanick commented 8 years ago

I think it now looks for it in a next include location. And before the crash was not like "I can't find file" but "I can't look at the place one told me to look"