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Using Multiple and Alternate Libraries
Mike Nicholaides edited this page Mar 10, 2022
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8 revisions
Passed an argument list of library names ffi_lib will try and load all the libraries or fail.
require 'ffi'
module MultiLibrary
extend FFI::Library
ffi_lib 'one', 'two', 'three'
end
Passed an array of library names ffi_lib will use the first library it successfully loads or fail if none can be loaded.
require 'ffi'
module NCurses
extend FFI::Library
ffi_lib ['ncurses', 'libncurses.so.5', 'XCurses']
end
Unless libraries one, two, and three and one of either var1 or var2 can all be loaded the ffi_lib method will fail.
require 'ffi'
module MultiLibrary
extend FFI::Library
ffi_lib 'one', 'two', 'three', ['var1', 'var2']
end