2.9. Placing arbitrary artifacts in the system using the make install command

Procédure

1. Add the install section to the Makefile:

   Makefile

   cello:
   	gcc -g -o cello cello.c
   
   clean:
   	rm cello
   
   install:
   	mkdir -p $(DESTDIR)/usr/bin
   	install -m 0755 cello $(DESTDIR)/usr/bin/cello

   Note that the lines under cello:, clean:, and install: must begin with a tab space.

   Note

   The $(DESTDIR) variable is a GNU make built-in and is commonly used to specify installation to a directory different than the root directory.

   Now you can use Makefile not only to build software, but also to install it to the target system.

2. Build and install the cello.c program:

   $ make
   gcc -g -o cello cello.c
   
   $ sudo make install
   install -m 0755 cello /usr/bin/cello

   As a result, cello is now located in the directory that is listed in the $PATH variable.

3. Execute cello from any directory without specifying its full path:

   $ cd ~
   
   $ cello
   Hello World