Hi Alex, On Thu, 11 Nov 2021, at 19:12, Axel Beckert wrote: > Andrej Shadura wrote: >> It is possible your package uses configure script with bash features not >> present in POSIX without explicitly declaring the need to bash shell; this >> currently works as configure scripts select bash, but when dash enables >> LINENO support,
> I'm sorry, but I don't get it: Why does _ENABLING_ a feature (which I > assume adds more compatibility with Bash) causes more issues than > without? > > Please explain what this change actually does or give pointers to > according documentation. Well, without LINENO support configure scripts judge dash is non-POSIX-compliant, and select bash instead, so bash syntax suddenly works despite #!/bin/sh at the top of the script. >> your configure script may start failing. > > According to your attached log it's clearly not the configure script. Yeah, I had a bug template but apparently I didn’t edit it properly. In your case the failure is happening elsewhere, not in the configure script — but it could have been related. >> [ 478s] cd build && make -j3 > ^^^ > > This is not helpful when trying to debug build failures. Please > refrain from using parallel building for such bug reports in the > future as it usually just hides the real issue. Thanks in advance. Sure — I just did the rebuild with the default settings. > I've rebuilt it with -j1 and can confirm that the configure script is > not the issue, but this part from your build log: <snip> > I'm not sure why the following patch fixes the issue, but it does so > at the expense of some more forks per build: I guess maybe the configure script sets the shell for the main makefile to /bin/dash (as opposed to /bin/bash), and then this gets passed onto this makefile as well. So I guess fixman is where the real issue is (written with bash in mind but sourced by dash). > It is also unclear to me what the relation of this patch to line > numbers or a variable called LINENO is. It’s just one of the parameters by which configure decides which shell to use. -- Cheers, Andrej
