Move info about lack of depencency checking in Makefiles to developer's faq.q

doc/FAQ_DEV

@@ -1,7 +1,7 @@
 
           Developer's Frequently Asked Questions (FAQ) for PostgreSQL
                                        
-   Last updated: Sat Apr 23 14:57:40 EDT 2005
+   Last updated: Sat Apr 23 16:52:14 EDT 2005
    
    Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
    
@@ -173,6 +173,11 @@ General Questions
    There have been a number of discussions about other testing frameworks
    and some developers are exploring these ideas.
    
+   Keep in mind the Makefiles do not have the proper dependencies for
+   include files. You have to do a make clean and then another make. If
+   you are using GCC you can use the --enable-depend option of configure
+   to have the compiler compute the dependencies automatically.
+   
   1.9) What tools are available for developers?
   
    First, all the files in the src/tools directory are designed for

doc/src/FAQ/FAQ_DEV.html

@@ -13,7 +13,7 @@
     <H1>Developer's Frequently Asked Questions (FAQ) for
     PostgreSQL</H1>
 
-    <P>Last updated: Sat Apr 23 14:57:40 EDT 2005</P>
+    <P>Last updated: Sat Apr 23 16:52:14 EDT 2005</P>
 
     <P>Current maintainer: Bruce Momjian (<A href=
     "mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
@@ -232,6 +232,12 @@
     <P>There have been a number of discussions about other testing
     frameworks and some developers are exploring these ideas.</P>
 
+    <P>Keep in mind the <I>Makefiles</I> do not have the proper
+    dependencies for include files. You have to do a <I>make clean</I>
+    and then another <I>make</I>. If you are using <SMALL>GCC</SMALL>
+    you can use the <I>--enable-depend</I> option of <I>configure</I>
+    to have the compiler compute the dependencies automatically.</P>
+
     <H3><A name="1.9">1.9</A>) What tools are available for
     developers?</H3>