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-rw-r--r--configure.ac2
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index a9281dc3..0692209d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,6 +16,8 @@ OB_COMPILER_FLAGS
AC_C_CONST
AC_C_INLINE
+AC_PROG_MAKE_SET
+
if test "$CVS" = "yes"; then
AC_PATH_PROG([FLEX], [flex])
test "$FLEX" || AC_MSG_ERROR([flex not found])