HOWTO set the environment variable

[Xiong]

While i am building a project on F compiler platform, i have trouble in make.The note is as below
:make -k all
Please specify the target machine!
Either use on the make command line:
make MACHINE=target
or define the environment variable MACHINE by:
export MACHINE=target
target can be one of:
linux_pgi, linux_pgi_debug
linux_absoft, linux_absoft_debug
linux_lahey, linux_lahey_debug
ibm, ibm_debug
vpp, vpp_debug, vpp5000
hp, hp_debug, sun, sun_debug
epc, epc_debug, cray, cray_debug
linux_intel, linux_intel_debug

Where can i set the environment variable?

BTW: I am using Ubuntu 6.06LTS and the programming language is fortran.

Thanks!

[mlind]

Output text says it:

Either use on the make command line:
make MACHINE=target
or define the environment variable MACHINE by:
export MACHINE=target


if you use export, the variable is effective for current terminal session.

export MACHINE=target
make -k all


or you can define variable only for make instance

MACHINE=target make -k all