eval and if-blocks incompatible on i386-pc-linux-gnu

[Arthur Carlson]

I am doing grid computing on two hosts, gavosrv1.mpe.mpg.de and 
siemens.babylon.cs.uni-potsdam.de. On both gavosrv1 and 
siemens.babylon.cs.uni-potsdam.de, GNU Make 3.80 is installed, but the 
behavior is different. Take the following makefile:

ifeq (true,true)


a:

@echo a


b:

@echo b


ifdef SWITCH

$(eval a : b)

endif


endif

On gavosrv1:

-bash-3.00$ make a

a

-bash-3.00$ make SWITCH=on a

b

a

On siemens.babylon.cs.uni-potsdam.de:

address@hidden:~/grid-modules/cf$ make a

a

address@hidden:~/grid-modules/cf$ make SWITCH=on a

makefile:10: *** missing `endif'. Stop.

That is, on siemens but not on gavosrv1, calling the eval function 
interferes with the conditional construct.

The behavior is the same if the statements are physically changed in the 
makefile, rather than using the SWITCH on the command line. If you want 
to be minimalist, you can also see the same problem in this makefile:

ifdef SWITCH

$(eval a : b)

endif

Running make --help, I noticed that gavosrv1 said "This program built 
for i686-redhat-linux-gnu", while siemens said "This program built for 
i386-pc-linux-gnu". I can't imagine where else this behavior could be 
coming from.

Have fun with it!
Art Carlson

--
Dr. Arthur Carlson
Max-Planck-Institut fuer extraterrestrische Physik
Giessenbachstrasse, 85748 Garching, Germany
Phone: (+49 89) 30000-3357
E-Mail: address@hidden