On Sun, 2020-04-05 at 15:51 +0200, Carlo B. via Cygwin wrote: > I wanted to report that I received a reply on the issue that I had opened > here: > > https://todo.sr.ht/~kaniini/pkgconf/10#comment-7894
Thanks for following up. > The report has been closed and I got this reply: > > "You should use a symlink instead of a wrapper script when using the > personality feature." > > I hope that somebody has understood what he means (posix is not > exactly my primary platform) and it could be useful for fixing the > issue. Yes, that gave me the information I needed. There is actually code within pkgconf to automatically load $PREFIX.personality when called as $PREFIX-pkg-config. This requires a packaging change on our end, which I'm incorporating into the latest release. > Il giorno gio 26 mar 2020 alle ore 14:07 Carlo B. > <carlo.bram...@gmail.com> ha scritto: > > Hello, > > I implemented the solution to this problem as a patch to > > pkgconf.cygport as requested. > > I attached small patch to this email, which resolved the troubles with > > CMake and Meson. > > I hope that you will find it useful and some developers will gently > > apply the correction to fix the issue. > > > > Thank you very much for your time and your support. > > Sincerely, > > > > Carlo Bramini. > > > > Il giorno sab 22 feb 2020 alle ore 18:47 Jon Turney > > <jon.tur...@dronecode.org.uk> ha scritto: > > > On 20/02/2020 11:06, Carlo B. wrote: > > > [...] > > > > x86_64-w64-mingw32-pkg-config are emulated with a shell script, for > > > > example the one for i686 is: > > > > > > > > #!/bin/sh > > > > exec pkgconf --personality=i686-w64-mingw32 $@ > > > > > > > > But while this solution mostly works when you exec it from the command > > > > line, it makes impossible to detect the presence of the tool from > > > > meson and cmake build systems. > > > > If you try to do this on the bash prompt, you get: > > > > > > > > $ i686-w64-mingw32-pkg-config --version > > > > pkgconf: --version specified with other options or module names, > > > > assuming --modversion. > > > > Please specify at least one package name on the command line. > > > > > > > > and this is exactly what happens with those build systems (and perhaps > > > > others, I don't know): it tries to call pkg-config with "--version" > > > > and it executes the above script that calls pkgconf. But sadly, the > > > > presence of the "--personality" option makes the process to fail, > > > > because the "--version" is currently allowed only when no other > > > > options are added. > > > > And, for this reason, meson and cmake fail the detection of the tool. > > > > > > > > I have also filed an issue here for pkgconf: > > > > https://todo.sr.ht/~kaniini/pkgconf/10 > > > > because the solution is actually to ignore the presence of the > > > > "--personality" option when the "--version" is written, but > > > > unfortunately I have not received any feedback. > > > > > > > > So, I'm also writing here, with the hope that you could find a solution. > > > [...] > > > > > > Thanks for reporting this issue. > > > > > > I guess the alternative to fixing pkgconf would be to modify those > > > wrapper scripts to detect when the parameters are just '--version' (or > > > equivalent) and not use --personality in that case? > > > > > > These wrapper scripts are specific to cygwin (generated by the cygport, > > > see [1]) > > > > > > It's possible other distros have more sophisticated wrapper scripts, > > > which avoid this problem? > > > > > > If you do write or discover some improved wrapper scripts, a patch to > > > [1] to update them would be appreciated. > > > > > > [1] > > > https://cygwin.com/git-cygwin-packages/?p=git/cygwin-packages/pkgconf.git;a=blob;f=pkgconf.cygport#l84 -- Yaakov -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
