because it has no internet access, like when fetching the repository
(modules.list file) of 3rd party modules.
Previously I had..
url_start_async(request);
synchronous_http_request_in_progress = 1;
.. which worked fine for the "cannot connect case", like port blocked
or timeout connecting. But if DNS fails then the step of setting
synchronous_http_request_in_progress = -1 (so failed) already happens
during the url_start_async(request); call, and then the line after it
sets 'synchronous_http_request_in_progress = 1;' so we miss that it
failed and wait in the I/O loop forever.
Simply swapping the two lines of code fixes this.
The other change is that when running the ModuleManager in "make" we should
ignore the exit code. I probably broke that while refactoring and adding
non-zero exit codes in de modulemanager past few months for this release.
This gets rid of src/buildmod and unifies the process a little, which
i need later.
We still compile the 3rd party modules unconditionally and twice (during
both make and make install). Which is a quirk that is in there since U6
and maybe U5 already :D. That's because we don't check if header files
have changed. There was previously a "is the .c file newer than the .so"
in there, though, that is gone now. Anyway, that's something for later.
Another quirk is that we do not halt compile if a 3rd party module fails
to compile. Which was sortof intentional at one point but.. is not ideal,
so will probably changed as well.
Anyway, that's not why i am doing all this stuff right now...
Also, check for GNU make (which can be either 'make' or 'gmake')
early in ./Config and print out an error to install prerequisites
from https://www.unrealircd.org/docs/Installing_from_source
This also replaces 'make' with ${MAKE} (and such) everywhere.