
fixes a problem with the opencv formula Closes Homebrew/homebrew#10291. Signed-off-by: Jack Nagel <jacknagel@gmail.com>
55 lines
1.7 KiB
Ruby
55 lines
1.7 KiB
Ruby
class Keg
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def fix_install_names
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dylibs.each do |dylib|
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bad_install_names_for dylib do |id, bad_names|
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dylib.ensure_writable do
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system "install_name_tool", "-id", id, dylib
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bad_names.each do |bad_name|
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new_name = bad_name
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new_name = Pathname.new(bad_name).basename unless (dylib.parent + new_name).exist?
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# this fixes some problems, maybe not all. opencv seems to have badnames of the type
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# "lib/libblah.dylib"
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if (dylib.parent + new_name).exist?
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system "install_name_tool", "-change", bad_name, "@loader_path/#{new_name}", dylib
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else
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opoo "Could not fix install names for #{dylib}"
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end
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end
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end
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end
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end
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end
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private
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OTOOL_RX = /\t(.*) \(compatibility version (\d+\.)*\d+, current version (\d+\.)*\d+\)/
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def bad_install_names_for dylib
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dylib = dylib.to_s
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ENV['HOMEBREW_DYLIB'] = dylib # solves all shell escaping problems
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install_names = `otool -L "$HOMEBREW_DYLIB"`.split "\n"
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install_names.shift # first line is fluff
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install_names.map!{ |s| OTOOL_RX =~ s && $1 }
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id = install_names.shift
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install_names.compact!
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install_names.reject!{ |fn| fn =~ /^@(loader|executable)_path/ }
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install_names.reject!{ |fn| fn[0,1] == '/' }
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# the shortpath ensures that library upgrades don’t break installed tools
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shortpath = HOMEBREW_PREFIX + Pathname.new(dylib).relative_path_from(self)
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id = if shortpath.exist? then shortpath else dylib end
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yield id, install_names
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end
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def dylibs
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if (lib = join 'lib').directory?
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lib.children.select{ |pn| pn.extname == '.dylib' and not pn.symlink? }
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else
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[]
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end
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end
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end
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