Cyclic dependency

[Aleksej S. <as...@in...>]

  Hello!

Make works on acyclic graphs, it doesn't like cycles.
I don't know historical background on this, this is empirical fact.
(Maybe make may be changed, but this will take some time.)

--- src/makemake.in.orig	2009-09-24 21:52:12.000000000 +0400
+++ src/makemake.in	2009-09-25 16:55:42.000000000 +0400
@@ -3305,7 +3305,10 @@
 MODULE_CONFIGURES=`find ${SRCTOPDIR_}modules -name configure`
 BUILD_AUX_ALL=`grep '$ac_aux_dir/' ${MODULE_CONFIGURES} | sed 's,.*$ac_aux_dir/\([a-z.-]*\).*,\1,' | sort -u`
 BUILD_AUX=''
-link_dep "build-aux" "${SRCDIR}build-aux"
+# Danger! If SRCDIR is empty, you confuse make with cycle in dependency graph:
+if test -n "${SRCDIR}"; then
+  link_dep "build-aux" "${SRCDIR}build-aux"
+fi
 for f in ${BUILD_AUX_ALL}; do
   test -r ${SRCDIR}build-aux/$f && BUILD_AUX="${BUILD_AUX} $f"
 done


-- 
HE CE3OH...