AC_INIT([freeglut library], [2.2.0], [freeglut-bugs@lists.sourceforge.net], [freeglut])
AM_INIT_AUTOMAKE
-AC_PREREQ([2.59])
+AC_PREREQ([2.58])
AC_CONFIG_SRCDIR([AUTHORS])
AC_CONFIG_HEADERS([config.h])
# Checks for library functions.
AC_PROG_GCC_TRADITIONAL
+AC_FUNC_VPRINTF
AC_CHECK_LIBM
AC_SUBST([LIBM])