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 header files.
AC_HEADER_STDC
-AC_CHECK_HEADERS([GL/gl.h GL/glu.h GL/glx.h])
+AC_CHECK_HEADERS([GL/gl.h GL/glu.h GL/glx.h fcntl.h limits.h sys/ioctl.h sys/param.h sys/time.h])
+AC_HEADER_TIME
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $X_CFLAGS"
CFLAGS="$save_CFLAGS"
# Checks for library functions.
+AC_PROG_GCC_TRADITIONAL
+AC_FUNC_VPRINTF
AC_CHECK_LIBM
AC_SUBST([LIBM])