allow autoconf 2.59

diff --git a/configure.ac b/configure.ac
index 0e2bf8cd94aa6afe54af2f65a58640efc9c5dd4b..c88759628a73a0a3401d2f896534b03b86ea89ac 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -3,6 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT(pgbouncer, 1.2.cvs)
 AC_CONFIG_SRCDIR(src/janitor.c)
 AC_CONFIG_HEADER(include/config.h)
+AC_PREREQ([2.59])
 
 dnl Checks for programs.
 AC_PROG_CC
@@ -79,12 +80,16 @@ AC_CHECK_HEADERS([sys/ucred.h], [], [], [
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_C_INLINE
 AC_C_BIGENDIAN
+AC_SYS_LARGEFILE
 AC_TYPE_PID_T
 AC_TYPE_SIZE_T
+
+dnl autoconfigure based on autoconf abilities
+m4_ifdef([AC_TYPE_UINT8_T], [
 AC_TYPE_UINT8_T
 AC_TYPE_UINT32_T
 AC_TYPE_UINT64_T
-AC_SYS_LARGEFILE
+])
 
 dnl Checks for library functions.
 AC_CHECK_FUNCS(strlcpy strlcat getpeereid getpeerucred)