AC_ARG_ENABLE([rename_so],
[AC_HELP_STRING([--enable-rename-so],
[Specify whether so file is renamed or not])],
[enable_rename_so=$enableval],
[enable_rename_so=yes])
AC_ARG_ENABLE([rename_so],
[AC_HELP_STRING([--enable-rename-so],
[Specify whether so file is renamed or not])],
[enable_rename_so=$enableval],
[enable_rename_so=yes])