CVSROOT: /sources/m4
Module name: m4
Changes by: Eric Blake <ericb> 07/04/10 14:39:41
Index: HACKING
===================================================================
RCS file: /sources/m4/m4/HACKING,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -b -r1.9 -r1.10
--- HACKING 1 Dec 2006 16:38:32 -0000 1.9
+++ HACKING 10 Apr 2007 14:39:40 -0000 1.10
@@ -38,6 +38,14 @@
environment or the -G option was passed on the command line):
http://www.opengroup.org/onlinepubs/009695399/utilities/m4.html
+* Except for third-party files (libtool, gnulib, ...), all .c files
+ should #include <config.h> before anything else (since there are some
+ #defines in config.h that potentially impact system headers, such as
+ when the user does ./configure --disable-assert). This means that no
+ .h files need to #include <config.h>. However, users compiling
+ external modules should be able to compile without <config.h>, since
+ <config.h> is specific to the M4 build and is not installable.
+
3. Bootstrapping
================
