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-rw-r--r--lib/am/configure.am6
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/am/configure.am b/lib/am/configure.am
index 6f39f7dbe..d159e1b55 100644
--- a/lib/am/configure.am
+++ b/lib/am/configure.am
@@ -83,7 +83,11 @@ endif %?TOPDIR_P%
esac;
## Avoid the "deleted header file" problem for the dependencies.
-?HAVE-MAKEFILE-IN-DEPS?%MAKEFILE-IN-DEPS%:
+## Add the trailing "$(am__empty)" to trick Automake into not spuriously
+## complaining about "duplicated targets" in case the %MAKEFILE-IN-DEPS%
+## list expands to a single target that is also declared in some
+## user-defined rule.
+?HAVE-MAKEFILE-IN-DEPS?%MAKEFILE-IN-DEPS% $(am__empty):
DIST_COMMON += %MAKEFILE-AM%