RE: Tricky suffix rule problem for Corba

[Paul D. Smith]

%% "CARTER-HITCHIN, David, FM" <address@hidden> writes:

  cdf> my fix is:

  cdf> IDL_HEADERS_TMP = $(subst .idl,.h,$(IDL_FILES))
  cdf> IDL_HEADERS = $(subst ../idl/,,$(IDL_HEADERS_TMP))

You really want to avoid subst, unless you absolutely need the specific
things it does.  It's far too unfocused a tool, and can cause lots of
confusion and hair-pulling down the road.

For example, consider if you had an entry in IDL_FILES like "my.idl.idl"
and what using subst would give you.  Almost always what you want is
$(patsubst ...) instead.

In this case you could use:

    IDL_HEADERS = $(patsubst %.idl,%.h,$(notdir $(IDL_FILES)))

There are other ways of course.

Also, you might consider using := here instead of = (if you can).  That
will potentially make your build faster as make can evaluate that value
just once instead of over and over.

  cdf> Other lists have overcome this problem (for RBS are not alone in
  cdf> this crime) by looking for "--LongSig" and strip off everything
  cdf> after that.  It would be easier for the maintainers of this list
  cdf> (or this list's software) to adopt this practice.

As long as you use a .sig introduction line in your email ("-- ") it's
fine.  If people are upset by long sigs, they can use a mail client that
hides them.

Cheers!

-- 
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 Paul D. Smith <address@hidden>          Find some GNU make tips at:
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 "Please remain calm...I may be mad, but I am a professional." --Mad Scientist