gcc is now PIE on latest linux (ubuntu) about bmk

[olejr]

Also, without this "fix", compilation of MaxIDE "work", but it's not runnable as in getting coredumps.
Happens on clean install of ubuntu 18.04 (or newer). Linux Mint 19 (based of ubuntu 18.04)
Installed Ubuntu/Mint in a VM, updated. downloaded latest release v0.99.3.31.
Recompiled modules, recompiled maxide. Try to run the new binary, coredump.

[woollybah]

There are repercussions to turning on this functionality. For example, any static libraries (like wxMax) would need to be built specifically with this option in order to be able to link against the application.

I got -pie -fpie working with a CC option of -fpie too, so I think I'll go with that. I've only tested some basic apps and MaxIDE so far, but it seems to be okay.

I think I'll enable it by default, but have a command-line option to disable it (-no-pie), just in case. And probably then another option in MaxIDE...

[markcwm]

Great, thanks Brucey. Yes static libraries would be too much trouble to recompile especially wxMax, glad you got it working with a CC option, seems like the way to go.

[GWRon]

There are repercussions to turning on this functionality. For example, any static libraries (like wxMax) would need to be built specifically with this option in order to be able to link against the application.

I got -pie -fpie working with a CC option of -fpie too, so I think I'll go with that. I've only tested some basic apps and MaxIDE so far, but it seems to be okay.

I think I'll enable it by default, but have a command-line option to disable it (-no-pie), just in case. And probably then another option in MaxIDE...

Where to put the option to - is this an "developer option" ?

[woollybah]

The actual issue with double-clicking a PIE executable in a file manager is to do with the file manager itself, not the fact that the binary has been compiled with -fpie etc.

The Nautilus developers (for example) seem to expect a UI application to be installed and have a .desktop file which the file manager would use to indicate that the application needed to run when double-clicked.

[GWRon]

That is interesting. Thunar (xfce desktop) allows double clicking on "chmod +x"-ed files. For the fpie-compiled files the context menu-information screen doesn't allow to check the "allow to execute" checkbox (is hidden for these files). Yet you might be right with the limitation being on the file manager side. Wonder why there is no update (for my mint 18.03 based install). Seems not backport worthy or the devs do not like the fpie-introduced requirements/needed changes.

[GWRon]

@ no-pie option
I asked where we should put this "Use -pie" (or how to call it) option to. I would create a commit/Pull Request then but am not sure how to name it - and where to put it. Maybe there is even a system call we could use to check if we should check that option or not (kind of a "version check") ?