Re: [NTG-context] Build for Alpine Linux

On Wed, 2018-04-11 at 20:08 +0000, Brian Hunt wrote:

So here's what I've got for a TODO so far to get ConTeXt working on Alpine Linux with musl (subject to item #6, mtx-context.lua not being found):

1. Add the musl test to first-setup.sh 2. Add the same musl test to tex/setuptex 3. Add texlua (and texluac?) to   a. the setup rsync bin/ directories   b. the tex/texmf-linuxmusl(|-ppc|-64) 4. Update mtxrun

Here's code that ought to work for detecting musl in mtxrun.  Around line 3721 of the mtxrun add:

    if find(architecture,"x86_64",1,true) then       platform="linux-64"     elseif find(architecture,"ppc",1,true) then       platform="linux-ppc"     else       platform="linux"     end +   if resultof("ldd --version 2>&1"):find("musl") ~= nil then +     platform = platform:gsub("linux", "linuxmusl") +   end 

5. Note that in tex/setuptex, there's evidently no way to get the current script so one has to explicitly provide the TeX directory (appears to be a BusyBox bug).

Standard POSIX sh has no way to reliably detect sourced invocation of a script. BusyBox uses POSIX sh underneath and thus suffers from the same limitation. See StackOverflow for detail: https://stackoverflow.com/questions/29832037

6. `context` is unable to locate `mtx-context.lua`.  Some tracker output sheds some light:   i. context --trackers=resolvers.expansions is identical   ii. context --trackers=resolvers.details,resolvers.details differs, with the output attached.  Note that to keep the comparison short I removed lines that differed only because `linux` had been changed to `linuxmusl`.

Will keep plugging away to see if I can determine why `mtx-context.lua` cannot be found on Alpine Linux.

Thanks for reading.

Brian

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