Differences

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--- programming:make [2021/02/04 14:43] – peter
+++ programming:make [2021/02/04 16:34] (current) – peter
@@ Line 5: / Line 5: @@
 ----
-[[Programming:Make|Make]]
+[[Programming:Make:Basic Make Example|Basic Make Example]]
-----
+[[Programming:Make:Custom Rules|Custom Rules]]
-===== Basic Example =====
+[[Programming:Make:Fake Target|Fake Target]]
-==== Create a C program ====
-<file c hello.c>
-#include <stdio.h>
-int main()
-{
-  printf("Hello World");
-  return 0;
-}
-</file>
 ----
-==== Create a Makefile ====
-<file bash Makefile>
-hello: hello.c
-</file>
-----
-==== Run Make ====
-<code bash>
-make
-</code>
-returns:
-<code bash>
-cc     hello.c   -o hello
-</code>
-<WRAP info>
-**NOTE:**  This compiles the C program.
-Most distributions will have cc pointing to the default C compiler.
-</WRAP>
-----
-==== Run Make Again ====
-<code bash>
-make
-</code>
-returns:
-<code bash>
-make: 'hello' is up to date.
-</code>
-<WRAP info>
-**NOTE:**  As nothing has changed, there is no need for Make to recompile the C program.
-To have the program be recompiled:
-  * Run **touch hello.c**, or
-  * Delete the compiled program, **rm hello**, or
-  * Modify the C program and run make again.
-</WRAP>
-----
-===== Enhanced Make =====
-Use variables within the Makefile:
-<file bash Makefile>
-CC=gcc
-CFLAGS=-g
-hello : hello.c
-</file>
-returns:
-<code bash>
-gcc -g    hello.c   -o hello
-</code>
-----
-===== Add further options to the Makefile =====
-<code bash>
-CC=gcc
-CFLAGS=-g
-# Comment next line to turn off optimization
-CFLAGS+=-O
-hello : hello.c
-</code>
-<WRAP info>
-**NOTE:  The implicit rule being used is:
-<code bash>
-$(CC) $(CFLAGS) $(CPPFLAGS) hello.c -o hello
-</code>
-</WRAP>