Add some words on installation.

Rename INSTALL script to install.mk.

diff --git a/INSTALL b/INSTALL
old mode 100755 (executable)
new mode 100644 (file)
index f9e6a8e..6652778
--- a/INSTALL
+++ b/INSTALL
@@ -1,28 +1,11 @@
-#!/usr/bin/make -f
+The only dependencies are Qt4 development files.  On Debian and
+Ubuntu, install the packages libqt4-dev and qt4-qmake.
 
-#DEST = $(HOME)/CoursInfo/Algo_S1/tp/graph
-DEST = $(HOME)/public_html/enseignement/Permanent/AlgoProg/tp/graph
+To use this library, just copy the two files DrawingWindow.h and
+DrawingWindow.cpp in your project, and build your program.  See the
+examples to find how to use qmake for the build process.
 
-SRC = DrawingWindow.h DrawingWindow.cpp
-SRC += exemple.cpp exemple.pro
-#SRC += index.html
-
-.PHONY: help generate install install_www
-
-help:
-       @echo "Usage: ./INSTALL generate | install | install_www"
-
-generate:
-       rm -fr html/
-       doxygen Doxyfile
-       sed -i '/^pre\.fragment {/,/}/{/font-size/d}' html/doxygen.css
-
-install: generate
-       rm -fr $(DEST)
-       install -m 755 -d $(DEST)
-       install -m 644 $(SRC) $(DEST)
-       install -m 644 html/* $(DEST)
-       install -m 644 htaccess $(DEST)/.htaccess
-
-install_www: install
-       update-www
+To generate the documentation, use doxygen with the command:
+        doxygen Doxyfile
+or simply run
+        make -f install.mk generate

diff --git a/install.mk b/install.mk
new file mode 100755 (executable)
index 0000000..f9e6a8e
--- /dev/null
+++ b/install.mk
@@ -0,0 +1,28 @@
+#!/usr/bin/make -f
+
+#DEST = $(HOME)/CoursInfo/Algo_S1/tp/graph
+DEST = $(HOME)/public_html/enseignement/Permanent/AlgoProg/tp/graph
+
+SRC = DrawingWindow.h DrawingWindow.cpp
+SRC += exemple.cpp exemple.pro
+#SRC += index.html
+
+.PHONY: help generate install install_www
+
+help:
+       @echo "Usage: ./INSTALL generate | install | install_www"
+
+generate:
+       rm -fr html/
+       doxygen Doxyfile
+       sed -i '/^pre\.fragment {/,/}/{/font-size/d}' html/doxygen.css
+
+install: generate
+       rm -fr $(DEST)
+       install -m 755 -d $(DEST)
+       install -m 644 $(SRC) $(DEST)
+       install -m 644 html/* $(DEST)
+       install -m 644 htaccess $(DEST)/.htaccess
+
+install_www: install
+       update-www