The starpu_regression_display tool needs to parse FxT traces.

tools/Makefile.am

@@ -44,8 +44,10 @@ endif
 bin_PROGRAMS +=	starpu_perfmodel_display
 starpu_perfmodel_display_SOURCES = starpu_perfmodel_display.c
 
+if STARPU_USE_FXT
 bin_PROGRAMS +=	starpu_regression_display
 starpu_regression_display_SOURCES = starpu_regression_display.c
+endif
 
 bin_PROGRAMS += starpu_machine_display
 starpu_machine_display_SOURCES = starpu_machine_display.c