Hi, my Makefile.in looks like this: === Makefile.in ============== ## ... @stdrules@ =============================== where "stdrules" is a AC_SUBST_FILE() variable, ie. my configure.in (yes, should be configure.ac - I know) contains something like stdrules="scripts/stdrules.mk" AC_SUBST_FILE(stdrules) The idea of "stdrules" is to provide all standard rules in a automatic way, ie. I don't want to touch N Make- files just because I made a small typo. So for example, "scripts/stdrules.mk" shall contain a rule to regenerate "Makefile" if corresponding Makefile.in has changed: ========= scripts/stdrules.mk ====================== #subdir = @????@ Makefile : @abs_top_srcdir@/$(subdir)/Makefile.in @echo "*** remake $(subdir)/Makefile" @cd @abs_builddir@ && /bin/sh ./config.status $(subdir)/Makefile ==================================================== To get this to work, substitution of autoconf vars need to take place (and as a side issue here - I like config.status to compute the value for $(subdir) ). And I like to apologize that I'm not using "automake" The solution I found then later myself is the same as Olaf (thanks) sent me today: --- autoconfig.ac --- common_mk=common.mk AC_SUBST_FILE(common_mk) AC_CONFIG_FILES([common.mk:common.in]) ----------------------- This works fine but one has to make sure that "common.mk" gets generated before any other (Make)files using "common.mk". In other words, "common.mk" needs to be the very first listed in AC_CONFIG_FILES ( or the last if autoconf one day change creation order). So this solution works but appears a bit hackish.. Another solution is to create "common.mk" on the fly while running "configure". For instance: --- autoconfig.ac --- common_mk=common.mk AC_SUBST_FILE(common_mk) cat >> common.mk << EOF common rules go here .. EOF ----------------------- This works also but unfortunatly lot's of interesting values are not fully computed. For example, the value of $exec_prefix appears to be always NONE. No idear why it has not it's final value while my code gets executed. Regards, Wolfgang. _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf