How to run a compiled C program?

[Georg-Johann Lay]

The avr backend auto-generates a part of the texi documentation by means 
  of a small C program. The relevant part of t-avr reads:

s-avr-mmcu-texi: gen-avr-mmcu-texi$(build_exeext)
	$(RUN_GEN) $< | sed -e 's:\r::g' > avr-mmcu.texi


There was a problem report that the executable cannot be found.

When I wrote that I checked other uses of RUN_GEN (which is empty) in 
$(builddir)/gcc/Makefile that do calls like $(RUN_GEN) build/...

What is the correct way to call the executable? Add ./ like so?

s-avr-mmcu-texi: gen-avr-mmcu-texi$(build_exeext)
	$(RUN_GEN) ./$< | sed -e 's:\r::g' > avr-mmcu.texi

Thanks for hints.

Johann