swig: fix gcc8 warnings for cast between incompatible function types

We got an error when building setools in meta-selinux:
setools/policyrep/qpol_wrap.c:1819:23:
error: cast between incompatible function types from 'PyObject * (*)(PyObject *)'
{aka 'struct _object * (*)(struct _object *)'} to 'PyObject * (*)(PyObject *, PyObject *)'
{aka 'struct _object * (*)(struct _object *, struct _object *)'} [-Werror=cast-function-type]
{(char *)"disown", (PyCFunction)SwigPyObject_disown, METH_NOARGS, (char *)"releases ownership of the pointer"},

This is a swig issue. See: https://github.com/swig/swig/issues/1259
Backport a patch from upstream to fix it.

(From OE-Core rev: f0f8ee668de34ad30ca16f5300966a3470018940)

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-devtools/swig/swig_3.0.12.bb b/meta/recipes-devtools/swig/swig_3.0.12.bb
index 429840bde1..fe9d0747f2 100644
--- a/meta/recipes-devtools/swig/swig_3.0.12.bb
+++ b/meta/recipes-devtools/swig/swig_3.0.12.bb
@@ -4,6 +4,7 @@ SRC_URI += "file://0001-Use-proc-self-exe-for-swig-swiglib-on-non-Win32-plat.pat
             file://0001-configure-use-pkg-config-for-pcre-detection.patch \
             file://0001-Add-Node-7.x-aka-V8-5.2-support.patch \
             file://swig-3.0.12-Coverity-fix-issue-reported-for-SWIG_Python_FixMetho.patch \
+            file://Python-Fix-new-GCC8-warnings-in-generated-code.patch \
            "
 SRC_URI[md5sum] = "82133dfa7bba75ff9ad98a7046be687c"
 SRC_URI[sha256sum] = "7cf9f447ae7ed1c51722efc45e7f14418d15d7a1e143ac9f09a668999f4fc94d"