faq/git: Remove old autotools document

Instead point to the new "build from source using meson" document

Part-of: <gstreamer/gst-docs!90>

markdown/frequently-asked-questions/git.md

 # Building GStreamer from git
 
-## Is there a way to test or develop against GStreamer from git without interfering with my system GStreamer installed from packages?
+Refer to the [Building GStreamer from
+source](installing/building-from-source-using-meson.md) Documentation.
 
-Yes! You have two options: you can either run GStreamer in an
-uninstalled setup (see [How do I develop against an uninstalled
-GStreamer copy?](#developing-uninstalled-gstreamer)), or you can use
-GNOME's jhbuild.
-
-## How do I check out GStreamer from git?
-
-GStreamer and its various official modules are hosted on Freedesktop.org. For
-starters, you will likely be interested in the core `gstreamer` module and the
-basic base functionality provided by the `gst-plugins-base` and
-`gst-plugins-good` modules. Additionally, and in case you want more
-comprehensive media format support, you might want to check out the
-`gst-plugins-ugly`, `gst-plugins-bad` and `gst-libav` modules.
-
-You can use the following command to download the latest source code for the
-base modules:
-
-```
-for module in gstreamer gst-plugins-base gst-plugins-good; do
-  git clone https://gitlab.freedesktop.org/gstreamer/$module ;
-done
-```
-
-This will create three directories in your current directory: `gstreamer`,
-`gst-plugins-base`, and `gst-plugins-good`. If you want to get another module,
-use the above `git clone` command line and replace `$module` with the name of
-the module. Then you will need to go into each directory and run `./autogen.sh`,
-this will, among other things, checkout the `common` module underneath each
-module checkout.
-
-You can get a list of active modules and their description from the
-[modules page](http://gstreamer.freedesktop.org/modules/).
-
-## How do I get developer access to GStreamer git?
-
-If you want to gain developer access to the GStreamer source-code repositories,
-you need to either send a request to the development lists, or directly ask one
-of the maintainers. We usually only consider requests by developers who have
-been active for some time and have shown to be competent GStreamer contributors.
-
-## I ran autogen.sh, but it failed with aclocal errors. What's wrong?
-
-```
-+ running aclocal -I m4 -I common/m4 ...
-aclocal: configure.ac: 8: macro `AM_DISABLE_STATIC' not found in library
-aclocal: configure.ac: 17: macro `AM_PROG_LIBTOOL' not found in library
-aclocal failed
-```
-
-What's wrong?
-
-`aclocal` is unable to find two macros installed by `libtool` in a
-file called `libtool.m4`. Normally, this would indicate that you don't have
-`libtool`, but that would mean `autogen.sh` should have failed on not finding
-`libtool`.
-
-It is more likely that you installed `automake` (which provides `aclocal`)
-and `libtool` in different prefixes. You can check this by examining in
-what prefix `aclocal` and `libtool` are installed.
-
-You can do three things to fix this :
-
-1.  install `automake` in the same prefix as `libtool`
-
-2.  force use of the `automake` installed in the same prefix as `libtool` by
-    using the `--with-automake` option
-
-3.  figure out what prefix `libtool` has been installed to and point
-    `aclocal` to the right location by running
-
-```
-    export ACLOCAL_FLAGS="-I $(prefix)/share/aclocal"
-```
-    where you need to replace `$(prefix)` with the one where `libtool` was
-    installed to.
-
-## Why is "-Wall -Werror" being used?
-
-`-Wall` is being used because it finds a lot of possible problems
-with code. Not all of them are necessarily a problem, but it's better to
-have the compiler report some false positives and find a work-around
-than spending days chasing a bug the compiler was already hinting to.
-
-`-Werror` is turned off for actual releases. It's turned on by default
-for git and prereleases so that people actually notice and fix problems
-found by `-Wall`. We want people to actively hit and report or fix them.
-
-If for any reason you want to bypass these flags and you are certain
-it's the right thing to do, you can run:
-
-```
-make ERROR_CFLAGS=""
-```
-
-to clear these error checking `CFLAGS`.