[librsvg: 8/9] COMPILING.md: Basic compilation instructions

[Federico Mena Quintero <federico src gnome org>]

commit b75c20fb3137af9610ff48d0d31ab45e008893ff
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Feb 22 12:39:58 2018 -0600

    COMPILING.md: Basic compilation instructions

 COMPILING.md | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
---
diff --git a/COMPILING.md b/COMPILING.md
index aefefcbd..a755b2ba 100644
--- a/COMPILING.md
+++ b/COMPILING.md
@@ -16,6 +16,7 @@ There are generic compilation/installation instructions in the
 explains librsvg's peculiarities.
 
 * [Installing dependencies for building](#installing-dependencies-for-building)
+* [Basic compilation instructions](#basic-compilation-instructions)
 * [Verbosity](#verbosity)
 * [Debug or release builds](#debug-or-release-builds)
 * [Cross-compilation](#cross-compilation)
@@ -99,6 +100,28 @@ libxml2-devel libcroco-devel cairo-devel \
 pango-devel gdk-pixbuf-devel
 ```
 
+# Basic compilation instructions
+
+If you are compiling a tarball:
+
+```sh
+./configure
+make
+make install
+```
+
+See the [`INSTALL`][install] file for details on options you can pass
+to the `configure` script to select where to install the compiled
+library.
+
+If you are compiling from a git checkout:
+
+```sh
+./autogen.sh
+make
+make install
+```
+
 # Verbosity
 
 By default the compilation process is quiet, and it just tells you