Add build documentation

docs/building.rst

@@ -0,0 +1,37 @@
+Building
+========
+
+Libmegapixels is build through Meson. the Cmake files present in the repository are
+only for IDE integration and does not install the binaries and required files.
+
+The libmegapixels library depends on libconfig and linux-headers only.
+
+The build steps for libmegapixels is just the normal Meson procedure for
+building and installing a library:
+
+.. code-block:: shell-session
+
+   $ git clone https://gitlab.com/megapixels-org/libmegapixels.git
+   Switch over to your favorite release branch after this
+   $ meson setup build
+   The Meson build system
+   Version: 1.3.1
+   ... etcetera
+   $ cd build
+   $ meson compile
+   compiler output here...
+   $ sudo meson install
+   Installing libmegapixels.so.1.0.0 to /usr/local/lib
+   Installing megapixels-findconfig to /usr/local/bin
+   Installing megapixels-getframe to /usr/local/bin
+   Installing /..snip.../include/libmegapixels.h to /usr/local/include
+   Installing /..snip.../libmegapixels.pc to /usr/local/lib/pkgconfig
+   Installing /..snip.../config/pine64,pinephone.conf to /usr/local/share/megapixels/config
+   Installing symlink pointing to libmegapixels.so.1.0.0 to /usr/local/lib/libmegapixels.so.1
+   Installing symlink pointing to libmegapixels.so.1 to /usr/local/lib/libmegapixels.so
+
+This will install the :code:`libmegapixels.so.1.0.0` library globally. This usually
+ends up in :code:`/usr/local/lib` which is not by default in the search path for
+libraries.
+
+This will also install the libmegapixels utilities and bundled config files.

docs/index.rst

@@ -14,5 +14,6 @@ media graph interface in Linux for ARM platforms with cameras.
    :maxdepth: 2
    :caption: Contents:
 
+   building
    overview
    faq