codeblocks-ep/help/html/programmerHelp/make/Archive-Suffix-Rules.html at master · maifeeulasad/codeblocks-ep · GitHub

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Node:<a name="Archive%20Suffix%20Rules">Archive Suffix Rules</a>,
Previous:<a rel="previous" accesskey="p" href="Archive-Pitfalls.html#Archive%20Pitfalls">Archive Pitfalls</a>,
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<h3 class="section">Suffix Rules for Archive Files</h3>

   <p>You can write a special kind of suffix rule for dealing with archive
files.  See <a href="Suffix-Rules.html#Suffix%20Rules">Suffix Rules</a>, for a full explanation of suffix rules.
Archive suffix rules are obsolete in GNU <code>make</code>, because pattern
rules for archives are a more general mechanism (see <a href="Archive-Update.html#Archive%20Update">Archive Update</a>).  But they are retained for compatibility with other
<code>make</code>s.

   <p>To write a suffix rule for archives, you simply write a suffix rule
using the target suffix <code>.a</code> (the usual suffix for archive files).
For example, here is the old-fashioned suffix rule to update a library
archive from C source files:

<pre class="example">     .c.a:
             $(CC) $(CFLAGS) $(CPPFLAGS) -c $&lt; -o $*.o
             $(AR) r $@ $*.o
             $(RM) $*.o
     </pre>

<p>This works just as if you had written the pattern rule:

<pre class="example">     (%.o): %.c
             $(CC) $(CFLAGS) $(CPPFLAGS) -c $&lt; -o $*.o
             $(AR) r $@ $*.o
             $(RM) $*.o
     </pre>

   <p>In fact, this is just what <code>make</code> does when it sees a suffix rule
with <code>.a</code> as the target suffix.  Any double-suffix rule
<code>.</code><var>x</var><code>.a</code> is converted to a pattern rule with the target
pattern <code>(%.o)</code> and a prerequisite pattern of <code>%.</code><var>x</var><code></code>.

   <p>Since you might want to use <code>.a</code> as the suffix for some other kind
of file, <code>make</code> also converts archive suffix rules to pattern rules
in the normal way (see <a href="Suffix-Rules.html#Suffix%20Rules">Suffix Rules</a>).  Thus a double-suffix rule
<code>.</code><var>x</var><code>.a</code> produces two pattern rules: <code>(%.o):
%.</code><var>x</var><code></code> and <code>%.a: %.</code><var>x</var><code></code>.

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