Build configurations shouldn't be done in svn controlled files, so I

finally created a solution to avoid that: Header files that contain
configuration settings (and nothing else) go to build/config_headers.
To change settings, create a directory build/user_config_headers (which
is ignored by svn), copy the respective header there and modify it at
your leisure. Currently only tracing_config.h has been moved to the new
location, but more files will follow eventually. It is also recommended
to move optional macro definitions in Jamfile (as for BFS) to a config
header instead; the build system will then automatically rebuild on
changes.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24611 a95241bf-73f2-0310-859d-f6bbb57e9c96

build/jam/OverriddenJamRules

@@ -69,7 +69,8 @@ rule Object
 		# yacc, lex, etc) are located in $(LOCATE_TARGET), possibly
 		# different from $(SEARCH_SOURCE).
 
-		headers = $(SEARCH_SOURCE) $(SUBDIRHDRS) $(HDRS) ;
+		headers = $(HAIKU_CONFIG_HEADERS) $(SEARCH_SOURCE) $(SUBDIRHDRS)
+			$(HDRS) ;
 		sysHeaders = $(SUBDIRSYSHDRS) $(SYSHDRS) ;
 		defines = $(DEFINES) ;