Added a instruction file for compilation.

diff --git a/COMPILING b/COMPILING
new file mode 100644 (file)
index 0000000..005bd21
--- /dev/null
+++ b/COMPILING
@@ -0,0 +1,6 @@
+With GNU/Linux :
+cmake . && make
+
+With Mac OS :
+Use the XCode project.
+You need to first build the debug and then the release or it won't work.