5.3.0 :: el7 pip install fails

[adriansev]

I'm trying to pip install xrootd on el7 but i get this:

Some dependencies are missing:
devtoolset-7 package is missing

but actually is already loaded:

[Monday 26.07.21 21:22] adrian@issaf : ~  $
which gcc
/opt/rh/devtoolset-7/root/usr/bin/gcc
[Monday 26.07.21 21:23] adrian@issaf : ~  $
gcc --version
gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

any idea about this?
Thanks a lot!
Adrian

[simonmichal]

@adriansev : that's what I'm doing to determine if devtoolset-7 is available:

xrootd/packaging/wheel/setup.py

Lines 64 to 70 in 3be51d9

	def has_devtoolset():
	"""check if devtoolset-7 is installed"""
	import subprocess
	args = ( "/usr/bin/rpm", "-q", "devtoolset-7" )
	popen = subprocess.Popen(args, stdout=subprocess.PIPE)
	rc = popen.wait()
	return rc == 0

(the check is only for RHEL7)

Could you try running: /usr/bin/rpm -q ?

[adriansev]

@simonmichal well, there are different things:

[Tuesday 27.07.21 15:55] adrian@issaf : ~  $ 
/usr/bin/rpm -q devtoolset
package devtoolset is not installed

[Tuesday 27.07.21 15:58] adrian@issaf : ~  $
rpm -qa | grep devtoolset-7-gcc*
devtoolset-7-gcc-plugin-devel-7.3.1-5.16.el7.x86_64
devtoolset-7-gcc-gdb-plugin-7.3.1-5.16.el7.x86_64
devtoolset-7-gcc-gfortran-7.3.1-5.16.el7.x86_64
devtoolset-7-gcc-c++-7.3.1-5.16.el7.x86_64
devtoolset-7-gcc-7.3.1-5.16.el7.x86_64

i usually do not install everything .. only what i need .. so i would say that is better to check only for what is needed ...
even better would be just to check for the version of the gcc, as gcc can come from other sources (like a cvmfs distributed software that is not devtoolset)

[simonmichal]

@adriansev : OK, that makes sense, let me experiment a bit so I can find a proper solution!

[simonmichal]

@adriansev : I just pushed 2 patches to master that address this problem: first of all the install script will check if the compiler selected by cmake has full C++14 support, (secondly) if not the script will require devtoolset-7-gcc-c++ to be installed.

Hope this solves the problem (we want to tag 5.3.1 by tomorrow).

[adriansev]

@simonmichal seems to work : built, loaded and reported as 20210729-bdf3ceb and tested a small copy, all green

[simonmichal]

@adriansev : perfect, thanks a lot for testing it so quickly :-)

I will close this issue and go ahead with the release.