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-rw-r--r--configure.ac5
1 files changed, 4 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 29d913f4..4c62d2dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,7 +16,8 @@ AC_CONFIG_LIBOBJ_DIR([.])
AC_CANONICAL_TARGET
dnl automake options are in Makefile.am
-AC_PREREQ(2.59)
+AC_PREREQ(2.60)
+dnl 2.60 required for AC_USE_SYSTEM_EXTENSIONS
AM_INIT_AUTOMAKE
dnl autobuild support, see <http://josefsson.org/autobuild/>
@@ -41,6 +42,8 @@ AC_PROG_INSTALL
AC_PROG_CPP dnl Later checks need this.
AC_PROG_RANLIB
AM_PROG_CC_C_O
+AC_USE_SYSTEM_EXTENSIONS
+
AC_AIX
AC_ISC_POSIX
AC_MINIX