AC_PROG_CC
# set CFLAGS and CXXFLAGS
-user_CFLAGS="${CFLAGS} -D_IOLIB=2 -D_FILE_OFFSET_BITS=64"
+user_CFLAGS="${CFLAGS} -D_IOLIB=2 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE"
generic_CFLAGS="-Wall -L."
AC_ARG_ENABLE(norazf, [ --disable-razf disable razf support],