[luatex] Problem building 0.50.0 (and trunk)

[Reinhard Kotucha]

On 7 January 2010 Karl Berry wrote:

 >             if which bash >/dev/null
 > 
 > I doubt "which" is sufficiently portable, given that we're already
 > talking about systems that don't have /bin/bash.

Are assignments prefixed by "export" portable?

Isn't it more portable to write

   FOO=bar
   export FOO

instead of 

   export FOO=bar

?

Regards,
  Reinhard

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