Difficulties to compile with Debian 11 x86_64

[Lecrapouille]

Hi! Strangely typing make does not make work: I got this error Set the HOSTTYPE environment variable to be one of the entries in config.mk I add to comment all the default: rule and call x86_64 then it woked

default: x86_64
#  archit=x86_64
#	@if [ $${HOSTTYPE-bob} != bob ] ; then \
#		archit=$$HOSTTYPE ; \
#	elif [ $${hosttype-bob} != bob ] ; then \
#		archit=$$hosttype ; \
#	else  \
#		archit=unknown ; \
#	fi ; \
#	if [ $(archit) != unknown ] ; then \
#		echo Making for $(archit) ; \
#		$(MAKE) $(archit) ; \
#	else \
#		echo "Could not figure out host architecture." ; \
#		echo "Set the HOSTTYPE environment variable to be one of the entries in config.mk" ; \
#	fi ;