basic problem with eval

[Xavier Marichal]

Hi!
sorry to annoy everyone with such a stupid problem, but I definitely 
don't understand the way eval works...
The example of the gnumake manual (section 8.8) does provide a strange 
output with my version of gmake (3.79.1):
I receive:
$ make -f Makefile_eval
gcc     -o server
gcc.exe: no input files
make: *** [server] Error 1

while I would have expected at least to see an attempt at generating 
server.o at first...

I did therefore try a simpler example:

TEST := 0

define refine_test
   TEST := 1
endef

default:
   @ECHO BEFORE $(TEST)
   $(eval $(call refine_test))
   @ECHO AFTER $(TEST)

but surprisingly enough, I receive the feedback:
BEFORE 0
AFTER 0

while I'd have expected
BEFORE 0
AFTER 1

There must be something obvious that I miss, but can of not figure out 
what...

Thanks for any hint.
Xavier