X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=configure.ac;h=e56fee9a188399f01a9643912ca48fa12887718f;hb=03e85f8934e2a1b68970d762a53c6bd890dd65fc;hp=a16380f13a347b352689da360be8a8a8a088ebc2;hpb=14beeeeb51aae9812d6d6cad134ef2921fcb5062;p=subdirmk.git

diff --git a/configure.ac b/configure.ac
index a16380f..e56fee9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -35,14 +35,21 @@ AC_SUBST(INCLUDES)
 m4_define([SUBDIRSMK_SUBDIRS],
 [m4_map_args_w([$1],[_SUBDIRSMK_SUBDIR(],[/)])])dnl
 
-AC_CONFIG_COMMANDS([subdirsmk],[],
-['$srcdir'/build-aux/subdirmk-setup --srcdir '$srcdir' $subdirsmk_subdirs])
+AC_CONFIG_FILES([subdirs.mk:subdirs.mk.tmp Subdir.mk:Subdir.mk.tmp],[],
+[
+subdirsmk_need_prep=false
+AS_IF([\$ac_need_defaults],
+[subdirsmk_need_prep=true],[
+AS_CASE([" \$ac_config_targets "],[*" subdirs.mk "*],
+[subdirsmk_need_prep=true])])
+AS_IF([\$subdirsmk_need_prep],[
+ echo 'running subdirmk-setup'
+ '$srcdir'/build-aux/subdirmk-setup --srcdir '$srcdir' $subdirsmk_subdirs
+])])
 
 m4_define([_SUBDIRSMK_SUBDIR],
 [subdirsmk_subdirs="$subdirsmk_subdirs '$1'"
 AC_CONFIG_FILES([$1Subdir.mk:$1Subdir.mk.tmp])])dnl
-dnl 
-dnl [AC_CONFIG_COMMANDS([$1Subdir.mk],)
 
 SUBDIRSMK_SUBDIRS([lib lib/t src])