XFAIL the gtk test, so that sympy tests pass even without python-libxml2
XFAIL the gtk test, so that sympy tests pass even without python-libxml2

yashsharan/sympy,cccfran/sympy,liangjiaxing/sympy,iamutkarshtiwari/sympy,cswiercz/sympy,Shaswat27/sympy,atsao72/sympy,garvitr/sympy,Davidjohnwilson/sympy,meghana1995/sympy,VaibhavAgarwalVA/sympy,Titan-C/sympy,wanglongqi/sympy,mcdaniel67/sympy,yukoba/sympy,Gadal/sympy,chaffra/sympy,saurabhjn76/sympy,atreyv/sympy,liangjiaxing/sympy,atsao72/sympy,moble/sympy,Curious72/sympy,jbaayen/sympy,kumarkrishna/sympy,maniteja123/sympy,Gadal/sympy,MechCoder/sympy,sampadsaha5/sympy,toolforger/sympy,jaimahajan1997/sympy,grevutiu-gabriel/sympy,oliverlee/sympy,cswiercz/sympy,lindsayad/sympy,sahilshekhawat/sympy,asm666/sympy,abloomston/sympy,chaffra/sympy,saurabhjn76/sympy,ahhda/sympy,drufat/sympy,ahhda/sympy,Arafatk/sympy,Curious72/sympy,lidavidm/sympy,pernici/sympy,tovrstra/sympy,shipci/sympy,mattpap/sympy-polys,postvakje/sympy,jamesblunt/sympy,VaibhavAgarwalVA/sympy,MridulS/sympy,jbbskinny/sympy,kaushik94/sympy,toolforger/sympy,rahuldan/sympy,meghana1995/sympy,hrashk/sympy,rahuldan/sympy,hargup/sympy,AkademieOlympia/sympy,hazelnusse/sympy-old,lindsayad/sympy,asm666/sympy,dqnykamp/sympy,Davidjohnwilson/sympy,ChristinaZografou/sympy,atsao72/sympy,jamesblunt/sympy,maniteja123/sympy,jaimahajan1997/sympy,iamutkarshtiwari/sympy,beni55/sympy,garvitr/sympy,dqnykamp/sympy,bukzor/sympy,beni55/sympy,hrashk/sympy,yukoba/sympy,lidavidm/sympy,chaffra/sympy,madan96/sympy,ga7g08/sympy,Arafatk/sympy,minrk/sympy,sahmed95/sympy,vipulroxx/sympy,asm666/sympy,madan96/sympy,fperez/sympy,Curious72/sympy,souravsingh/sympy,skirpichev/omg,garvitr/sympy,jamesblunt/sympy,rahuldan/sympy,cccfran/sympy,wyom/sympy,Designist/sympy,abhiii5459/sympy,ryanGT/sympy,Shaswat27/sympy,MechCoder/sympy,mcdaniel67/sympy,shikil/sympy,abloomston/sympy,sahilshekhawat/sympy,Mitchkoens/sympy,emon10005/sympy,kaushik94/sympy,pandeyadarsh/sympy,shikil/sympy,drufat/sympy,srjoglekar246/sympy,wyom/sympy,debugger22/sympy,sampadsaha5/sympy,moble/sympy,abloomston/sympy,hargup/sympy,kumarkrishna/sympy,madan96/sympy,bukzor/sympy,farhaanbukhsh/sympy,mafiya69/sympy,souravsingh/sympy,aktech/sympy,skidzo/sympy,sunny94/temp,mafiya69/sympy,AkademieOlympia/sympy,ChristinaZografou/sympy,pbrady/sympy,bukzor/sympy,jerli/sympy,ahhda/sympy,wyom/sympy,sampadsaha5/sympy,kmacinnis/sympy,AunShiLord/sympy,flacjacket/sympy,ga7g08/sympy,aktech/sympy,emon10005/sympy,AunShiLord/sympy,shipci/sympy,wanglongqi/sympy,mcdaniel67/sympy,debugger22/sympy,amitjamadagni/sympy,hrashk/sympy,Davidjohnwilson/sympy,jbbskinny/sympy,beni55/sympy,debugger22/sympy,sahmed95/sympy,atreyv/sympy,Vishluck/sympy,pbrady/sympy,amitjamadagni/sympy,iamutkarshtiwari/sympy,kaichogami/sympy,postvakje/sympy,MridulS/sympy,oliverlee/sympy,Sumith1896/sympy,Vishluck/sympy,Sumith1896/sympy,diofant/diofant,AkademieOlympia/sympy,AunShiLord/sympy,Titan-C/sympy,sunny94/temp,hargup/sympy,yashsharan/sympy,yukoba/sympy,jerli/sympy,vipulroxx/sympy,kaichogami/sympy,moble/sympy,saurabhjn76/sympy,Titan-C/sympy,kaichogami/sympy,lidavidm/sympy,Sumith1896/sympy,liangjiaxing/sympy,skidzo/sympy,kevalds51/sympy,hazelnusse/sympy-old,ChristinaZografou/sympy,sunny94/temp,grevutiu-gabriel/sympy,oliverlee/sympy,wanglongqi/sympy,kmacinnis/sympy,pandeyadarsh/sympy,abhiii5459/sympy,Mitchkoens/sympy,cccfran/sympy,ga7g08/sympy,shikil/sympy,yashsharan/sympy,dqnykamp/sympy,MechCoder/sympy,sahilshekhawat/sympy,aktech/sympy,Mitchkoens/sympy,emon10005/sympy,abhiii5459/sympy,Shaswat27/sympy,lindsayad/sympy,minrk/sympy,maniteja123/sympy,jaimahajan1997/sympy,MridulS/sympy,mafiya69/sympy,kevalds51/sympy,kaushik94/sympy,cswiercz/sympy,postvakje/sympy,grevutiu-gabriel/sympy,Arafatk/sympy,Vishluck/sympy,Designist/sympy,sahmed95/sympy,skidzo/sympy,kmacinnis/sympy,kumarkrishna/sympy,jerli/sympy,vipulroxx/sympy,pandeyadarsh/sympy,jbbskinny/sympy,pbrady/sympy,kevalds51/sympy,shipci/sympy,KevinGoodsell/sympy,VaibhavAgarwalVA/sympy,souravsingh/sympy,farhaanbukhsh/sympy,farhaanbukhsh/sympy,Gadal/sympy,drufat/sympy,toolforger/sympy,meghana1995/sympy,Designist/sympy,atreyv/sympy