PERFORCE change 170676 for review

[Rene Ladan]

http://p4web.freebsd.org/chv.cgi?CH=170676

Change 170676 by rene at rene_self on 2009/11/16 20:34:47

	[porters-handbook/clang]:
	* Clang/GCC use the gnu99/gnu89 standard, not c99/c89 [1]
	* Improve text when to try USE_CSTD=gnu89
	Submitted by:	rdivacky [1], ed [2]

Affected files ...

.. //depot/projects/docproj_nl/en_US.ISO8859-1/books/porters-handbook/book.sgml#53 edit

Differences ...

==== //depot/projects/docproj_nl/en_US.ISO8859-1/books/porters-handbook/book.sgml#53 (text+ko) ====

@@ -13633,11 +13633,13 @@
 	  </listitem>
 
 	  <listitem>
-	    <para>Clang uses the C99 standard by default, while GCC uses the C89
-	      standard by default.  Therefore, if there are any errors related
-	      to missing or already defined functions, try to add
-	      <literal>USE_CSTD=gnu89</literal> to the port
-	      <filename>Makefile</filename>.</para>
+	    <para>Clang uses the gnu99 standard by default, while GCC uses the
+	      gnu89 standard by default.  Therefore, if there are any linker
+	      errors caused by the different semantics of
+	      <literal>inline</literal>, compiler errors caused by the use of
+	      reserved C99 keywords (i.e. restrict) or calls to unimplemented
+	      ISO C99 math routines try to add <literal>USE_CSTD=gnu89</literal>
+	      to the port <filename>Makefile</filename>.</para>
 	  </listitem>
 
 	  <listitem>