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[ruby/fiddle] support for very old libffi

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Define `Fiddle::TYPE_VARIADIC` only when `ffi_prep_cif_var` is
available, otherwise skip the test for it.
This commit is contained in:
Nobuyoshi Nakada 2020-06-28 10:34:01 +09:00
parent 0703e01471
commit 48fb6299c6
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2 changed files with 5 additions and 0 deletions
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2
ext/fiddle/fiddle.c
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@ -227,11 +227,13 @@ Init_fiddle(void)
*/ */
rb_define_const(mFiddle, "TYPE_DOUBLE", INT2NUM(TYPE_DOUBLE)); rb_define_const(mFiddle, "TYPE_DOUBLE", INT2NUM(TYPE_DOUBLE));
#ifdef HAVE_FFI_PREP_CIF_VAR
/* Document-const: TYPE_VARIADIC /* Document-const: TYPE_VARIADIC
* *
* C type - ... * C type - ...
*/ */
rb_define_const(mFiddle, "TYPE_VARIADIC", INT2NUM(TYPE_VARIADIC)); rb_define_const(mFiddle, "TYPE_VARIADIC", INT2NUM(TYPE_VARIADIC));
#endif
/* Document-const: TYPE_SIZE_T /* Document-const: TYPE_SIZE_T
* *

3
test/fiddle/test_func.rb
View file

@ -81,6 +81,9 @@ module Fiddle
end end
def test_snprintf def test_snprintf
unless Fiddle.const_defined?("TYPE_VARIADIC")
skip "libffi doesn't support variadic arguments"
end
if Fiddle::WINDOWS if Fiddle::WINDOWS
snprintf_name = "_snprintf" snprintf_name = "_snprintf"
else else