Re: how to remove spaces from a list?

[Paul D. Smith]

%% gk <address@hidden> writes:

  g> I need to process a list and have the resultant strings have no
  g> white space between them.  I have looked at all the make text
  g> functions and foreach, patsubst both return white-space separated
  g> result lists Is there a way to force $(subst ...) to accept a space
  g> as the first parameter?  This doesn't work because subst ignores
  g> leading white space before the first parameter: $(subst ,,$(myText))

A very important trick: how to set a variable equal to a space:

  # $E is an empty variable
  # $S is a variable containing exactly one space as its value

  E :=
  S := $E $E

Now you can use this with subst since the variable is not expanded
before the function arguments are parsed:

  $(subst $S,,$(myText))


Have fun!

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 Paul D. Smith <address@hidden>          Find some GNU make tips at:
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