diff --git a/examples/gif2webp.c b/examples/gif2webp.c
index 04c93735..2ac0510c 100644
--- a/examples/gif2webp.c
+++ b/examples/gif2webp.c
@@ -7,6 +7,15 @@
 //
 //  simple tool to convert animated GIFs to WebP
 //
+// Getting the prerequisites:
+// Debian-like linux:
+//   sudo apt-get install libgif-dev
+// MacPorts
+//   sudo port install giflib
+//
+// Compiling:
+//   gcc -o gif2webp gif2webp.c -O3 -lwebpmux -lwebp -lgif -lpthread -lm
+//
 // Authors: Skal (pascal.massimino@gmail.com)
 //          Urvang (urvang@google.com)