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Also: The caveats reference an old and closed issue. Remove them.
Signed-off-by: Adam Vandenberg <flangy@gmail.com>
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Signed-off-by: Adam Vandenberg <flangy@gmail.com>
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Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
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* Can use libtiff
* Uses internal jasper instead of HOMEBREW one
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For serious.
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Fixes #113.
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brewkit.rb changes ENV destructively, so lets not do that everytime a formula
is required. Now it's possible for other tools to require a formula
description without worrying about side-effects.
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Closes #56
If jpeg7 is already installed when you try to install ghostscript there is a
compilation error.
The answer is to move the included jpeg6 source directory out of the way,
download jpeg7, and create a link to the jpeg7 source inside of the
ghostscript source... ghostscript is none the wiser.
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Relevent to issue #56
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Specify dependencies in your formula's deps function. You can return an Array,
String or Hash, eg:
def deps
{ :optional => 'libogg', :required => %w[flac sdl], :recommended => 'cmake' }
end
Note currently the Hash is flattened and qualifications are ignored. If you
only return an Array or String, the qualification is assumed to be :required.
Other packaging systems have problems when it comes to packages requiring a
specific version of a package, or some patches that may not work well with
other software. With Homebrew we have some options:
1. If the formula is vanilla but an older version we can cherry-pick the old
version and install it in the Cellar in parallel, but just not symlink it
into /usr/local while forcing the formula that depends on it to link to
that one and not any other versions of it.
2. If the dependency requires patches then we shouldn't install this for use
by any other tools, (I guess this needs to be decided on a per-situation
basis). It can be installed into the parent formula's prefix, and not
symlinked into /usr/local. In this case the dependency's Formula
derivation should be saved in the parent formula's file (check git or
flac for an example of this).
Both the above can be done currently with hacks, so I'll flesh out a proper
way sometime this week.
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