Conditionals

[Barry D Benowitz]

Maybe some one can stop me from going crazy. Maybe not.

I'm trying to test the contents of a variable, using ifeq, and I am not 
getting the appropriate results. Here is what I am doing:

linux :=  linux
hp := hp
target_arch :=#Make sure its empty
ifndef target_arch                                              #Is target_arch 
SET
target_arch := $(findstring $(linux),  $(dir_tokens) )   # See  if its linux
endif
ifndef target_arch                                              #Is TARGET_ARCH 
SET
target_arch := $(findstring $(hp),  $(dir_tokens) )  #See if it hp
endif

#target arch is set the way I think it should be: either linux or hp based on 
#the  directory
#now I test it:

ifeq ($(strip $(target_arch) ),$(strip $(hp) ) )
result1 := true
endif

# Linux specific stuff
ifeq ($(strip $(target_arch) ),$(strip $(linux) ) )
result2 := true
endif 

neither result1 nor result2 are set. What am I doing wrong.

Here is the version of make.
$ make -v
GNU Make version 3.79.1, by Richard Stallman and Roland McGrath.