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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 6b5b0fa..3009293 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,7 +36,7 @@ JAYLINK_CFLAGS="-Wall -Wextra -Werror -fvisibility=hidden"
# Checks for programs.
AC_PROG_CC
# AC_PROG_CC_C99 is dropped in Autoconf >= 2.70 and done in AC_PROG_CC.
-+m4_version_prereq([2.70],[],[AC_PROG_CC_C99])
+m4_version_prereq([2.70],[],[AC_PROG_CC_C99])
# Automake >= 1.12 requires AM_PROG_AR when using options -Wall and -Werror.
# To be compatible with older versions of Automake use AM_PROG_AR if it's