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-rw-r--r--readline/readline/configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/readline/readline/configure.ac b/readline/readline/configure.ac
index 9ea2a6b..6a9d77f 100644
--- a/readline/readline/configure.ac
+++ b/readline/readline/configure.ac
@@ -27,7 +27,7 @@ m4_include([../../config/override.m4])
AC_INIT(readline, 8.1, bug-readline@gnu.org)
dnl make sure we are using a recent autoconf version
-AC_PREREQ(2.50)
+AC_PREREQ([2.50])
AC_CONFIG_SRCDIR(readline.h)
dnl GDB LOCAL