dnl Process this file with autoconf to produce a configure script.
-AC_PREREQ(2.12.1)dnl
+AC_PREREQ(2.13)dnl
AC_INIT(Makefile.in)
AC_PROG_CC
AC_PROG_RANLIB
# Put a plausible default for CC_FOR_BUILD in Makefile.
-AC_C_CROSS
if test "x$cross_compiling" = "xno"; then
CC_FOR_BUILD='$(CC)'
else