-AC_ARG_ENABLE([gps], AS_HELP_STRING([--enable-gps], [Build with gpsd support]),
- [PKG_CHECK_MODULES(GPSD, libgps >= 3.0)
- AC_DEFINE([HAVE_GPSD], [], [Have GPSD support])
- AC_SUBST(HAVE_GPSD, [TRUE])]
-)
-AM_CONDITIONAL([HAVE_GPSD], test "$HAVE_GPSD" = "TRUE")
+AC_ARG_ENABLE([gps],
+ AS_HELP_STRING([--enable-gps], [Build with gpsd support]))
+AS_IF([test "$enable_gps" = "yes"],
+ [PKG_CHECK_MODULES(GPSD, libgps >= 3.0)])
+AM_CONDITIONAL([HAVE_GPSD], test "x$enable_gps" = "xyes")