Add the 'subdir-objects' option in the automake makefile.

This rearranges the object files so that they each live alongside
their original source file, instead of all being in the same
directory. To my way of thinking this is a more or less neutral change
(perhaps marginally less tidy), but autotools is apparently beginning
to think it's the One True Way and 1.14 will give a warning if you
don't have it enabled.

[originally from svn r10142]

diff --git a/mkfiles.pl b/mkfiles.pl
index bb767c168313f0e905c9eeb8d6e0950676427130..563d83f688532f7466118e552948305b0090acfd 100755 (executable)
--- a/mkfiles.pl
+++ b/mkfiles.pl
@@ -1482,6 +1482,10 @@ if (defined $makefiles{'am'}) {
     "#\n# This file was created by `mkfiles.pl' from the `Recipe' file.\n".
     "# DO NOT EDIT THIS FILE DIRECTLY; edit Recipe or mkfiles.pl instead.\n\n";
 
+    # 2014-02-22: as of automake-1.14 we begin to get complained at if
+    # we don't use this option
+    print "AUTOMAKE_OPTIONS = subdir-objects\n\n";
+
     # Complete list of source and header files. Not used by the
     # auto-generated parts of this makefile, but Recipe might like to
     # have it available as a variable so that mandatory-rebuild things