Flowdock
method

have_library

Importance_1
have_library(lib, func = nil, headers = nil, &b) public

Returns whether or not the given entry point func can be found within lib. If func is nil, the ‘main()’ entry point is used by default. If found, it adds the library to list of libraries to be used when linking your extension.

If headers are provided, it will include those header files as the header files it looks in when searching for func.

The real name of the library to be linked can be altered by ‘–with-FOOlib’ configuration option.

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