method
have_library
ruby latest stable - Class:
Object
Method deprecated or moved
This method is deprecated or moved on the latest stable version. The last existing version (v1_9_3_392) is shown here.
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.
# File lib/mkmf.rb, line 837
def have_library(lib, func = nil, headers = nil, &b)
func = "main" if !func or func.empty?
lib = with_config(lib+'lib', lib)
checking_for checking_message("#{func}()", LIBARG%lib) do
if COMMON_LIBS.include?(lib)
true
else
libs = append_library($libs, lib)
if try_func(func, libs, headers, &b)
$libs = libs
true
else
false
end
end
end
end