Comment 8 for bug 1618803

Workaround until 16.10's tcsh is rebuilt with the sysmalloc fix: build your own fixed AMD64 .deb:

a) Pull the Fedora Rawhide src rpm from
https://www.rpmfind.net/linux/RPM/fedora/devel/rawhide/src/t/tcsh-6.19.00-15.fc26.src.html
wget ftp://fr2.rpmfind.net/linux/fedora/linux/development/rawhide/Everything/source/tree/Packages/t/tcsh-6.19.00-15.fc26.src.rpm

b) extract the contents of the src rpm:
rpm2cpio tcsh-6.19.00-15.fc26.src.rpm > a1.cpio
mkdir t ; cd t
cpio -dmiv < ../a1.cpio
cd ..

c) Pull the current Ubuntu yakkety 16.10 beta tcsh source from packages.ubuntu.com
wget http://archive.ubuntu.com/ubuntu/pool/universe/t/tcsh/tcsh_6.18.01-5.dsc http://archive.ubuntu.com/ubuntu/pool/universe/t/tcsh/tcsh_6.18.01.orig.tar.gz http://archive.ubuntu.com/ubuntu/pool/universe/t/tcsh/tcsh_6.18.01-5.diff.gz

d) Rebuild tcsh with patches from Fedora
mkdir t2 ; cd t2
dpkg-source -x ../tcsh_6.18.01-5.dsc
cd tcsh-6.18.01/
patch -p1 < ../../t/tcsh-6.19.00-024-use-sysmalloc.patch
patch -p1 < ../../t/tcsh-6.19.00-014-do-not-use-union-wait.patch
dpkg-buildpackage -rfakeroot -uc -b
cd ..
sudo dpkg -i tcsh_6.18.01-5_amd64.deb

Works for me, no more tcsh crashes when pressing TAB.

Note that I had to apply the do-not-use-union-wait patch as well. Without it, I can't get the current Ubuntu 16.10 tcsh source to build on 16.10 at all, which is odd. Is the AMD64 .deb on the ubuntu servers not built on 16.10, or is there some other explanation for why it doesn't experience the "sh.proc.c:155:16: error: storage size of ‘w’ isn’t known" that results without do-not-use-union-wait.patch?

Dan