-AC_ARG_WITH([log-level],
- [AS_HELP_STRING([--with-log-level=NUM],
- [0, none... 1, errors... 4, everything (default: 3)])],
- [log_level=$withval],
- [log_level=3])
+AC_ARG_ENABLE([link-sh],
+ [AS_HELP_STRING([--enable-link-sh],
+ [give the executable fewer direct dependencies])],
+ [link_sh=$enableval],
+ [link_sh=no])
+
+AC_ARG_ENABLE([clock_gettime],
+ [AS_HELP_STRING([--enable-clock_gettime],
+ [use clock_gettime() instead of SDL_GetTicks()])],
+ [clock_gettime=$enableval],
+ [clock_gettime=no])
+
+AC_ARG_ENABLE([threads],
+ [AS_HELP_STRING([--enable-threads],
+ [use threads for concurrency where appropriate])],
+ [threads=$enableval],
+ [threads=no])
+
+AC_ARG_ENABLE([hotloading],
+ [AS_HELP_STRING([--enable-hotloading],
+ [monitor assets and reload them when they change])],
+ [hotloading=$enableval],
+ [hotloading=no])
+
+AC_ARG_WITH([gtk],
+ [AS_HELP_STRING([--with-gtk],
+ [use gtk2 modal dialogs])],
+ [gtk=$withval],
+ [gtk=no])
+
+AC_ARG_WITH([qt4],
+ [AS_HELP_STRING([--with-qt4],
+ [use qt4 modal dialogs; overridden by --with-gtk])],
+ [qt4=$withval],
+ [qt4=no])