have_type(type, headers = nil, opt = "", &b)
Instance Public methods
Returns whether or not the static type type
is defined. You
may optionally pass additional headers
to check against in
addition to the common header files.
You may also pass additional flags to opt
which are then
passed along to the compiler.
If found, a macro is passed as a preprocessor constant to the compiler
using the type name, in uppercase, prepended with HAVE_TYPE_
.
For example, if have_type('foo')
returned true, then
the HAVE_TYPE_FOO
preprocessor macro would be passed to the
compiler.
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