(Sorry I keep editing your posts, but surrounding the logs with [code] … [/code] makes them much more readable)
OK, that’s an unusual one. Though I do have some vague recollection of having had GCC version 6 installed with MSYS2 and having to revert to version 5…
If necessary I’ll try to reproduce tonight and give you more precise instructions (and update the documentation). But what I think you need to do is uninstall GCC version 6, find a package for GCC version 5, and install that.
-
To remove version 6:
pacman -R mingw-w64-x86_64-gcc -
To install version 5 will require a bit of searching around. You can try:
pacman -Ss gcc: That should give you a list of available packages that contain ‘gcc’ in the name. Look for something that has the version number (5) in the title, or anything that hasmsys2rather thanmingwat the start of the package name. If nothing there works, you could maybe trymingw-w64-x86_64-toolchaininstead ofmingw-w64-x86_64-gcc. You may have to update (or just erase) theCXXenvironment variable so that the newly installed program is found. TheCXX_ARGSvariable won’t be of any use to you: that’s there for compilers other thangcc.
Make sure you check @jdtournier’s instruction too. Note that this suggestion applies not only to which shell you use, but also that the shell shortcuts need to be updated following the update-core step in the instructions.