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-rw-r--r--configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index d1fde9d5..b68468e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,7 +54,7 @@ AC_PROG_CC
AC_PROG_CXX
AC_LANG([C++])
ACX_USE_SYSTEM_EXTENSIONS
-AM_PROG_AR
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc
# test_util.cc takes forever to compile with GCC and optimization turned on.