Initial work to support out-of-tree builds
```
./autogen.sh
mkdir build
cd build
../configure
make
make check
```
IMPORTANT: `autogen.sh` doesn't call `configure` automatically anymore!!
You have to do: `./autogen.sh && ./configure --$OPTIONS`.
A little bit annoying but the pattern `autogen && configure && make` is
very common on Linux.
Known issues:
* `make doc` doesn't work in out-of-tree builds, yet
* Windows/MinGW/DPDK (out-of-tree) builds have not been tested, so it is unlikely they work
See: #2992
For some reansons, the installation of golang-1.16 fails on ubuntu 24.04
(note that ubuntu-latest now is pointing to ubuntu-24.04).
It seems that everything is fine if we use the already installed version
of golang
Add a simple job with macos-14 on M1.
https://github.blog/changelog/2024-01-30-github-actions-introducing-the-new-m1-macos-runner-available-to-open-source/)
There are some issues with external dependencies (they are installed but
autoconf script doens;t find them) so keep it simple.
On macos-13 it seems that:
* there is no `realpath` program (even if coreutils has been
installed...)
* most of the filesystem is read only (we can't write on /usr/lib).
So I change
```
make install DESTDIR=$(realpath _install)
ls -alhHR _install
```
to
```
DESTDIR=/tmp/ndpi make install
ls -alhHR /tmp/ndpi
```
for all the jobs
Fix a warning on GitHub logs:
```
Node.js 16 actions are deprecated. Please update the following actions
to use Node.js 20: actions/checkout@v3. For more information see:
https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.
```
Move from PCRE to PCRE2. PCRE is EOL and won't receive any security
updates anymore. Convert to PCRE2 by converting any function PCRE2 new
API.
Also update every entry in github workflows and README to point to the
new configure flag. (--with-pcre2)
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
