setools: fix build with Python 3.9

The Py_UNICODE_COPY, Py_UNICODE_FILL, PyUnicode_WSTR_LENGTH,
PyUnicode_FromUnicode(), PyUnicode_AsUnicode(), _PyUnicode_AsUnicode,
and PyUnicode_AsUnicodeAndSize() are marked as deprecated in Python 3.9.
(See: https://docs.python.org/3/whatsnew/3.9.html). But the current
python3-cython (0.29.21) hasn't adapt it yet.
Append '-Wno-deprecated-declarations' in CFLAGS as a workaround to fix
the build issue.

Fixes:
In file included from
/build/tmp-glibc/work/corei7-64-wrs-linux/setools/4.3.0-r0/recipe-sysroot/usr/include/python3.9/unicodeobject.h:1026,
    from /build/tmp-glibc/work/corei7-64-wrs-linux/setools/4.3.0-r0/recipe-sysroot/usr/include/python3.9/Python.h:97,
    from setools/policyrep.c:49:
/build/tmp-glibc/work/corei7-64-wrs-linux/setools/4.3.0-r0/recipe-sysroot/usr/include/python3.9/cpython/unicodeobject.h:446:26:
note: declared here
  446 | static inline Py_ssize_t _PyUnicode_get_wstr_length(PyObject *op) {
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
setools/policyrep.c:97302:3: error: 'PyUnicode_AsUnicode' is deprecated [-Werror=deprecated-declarations]

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Joe MacDonald <joe@deserted.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/recipes-security/setools/setools_4.3.0.bb b/recipes-security/setools/setools_4.3.0.bb
index 8fdeeb0..0f166c8 100644
--- a/recipes-security/setools/setools_4.3.0.bb
+++ b/recipes-security/setools/setools_4.3.0.bb
@@ -30,6 +30,8 @@ RDEPENDS_${PN} += "python3-networkx python3-decorator python3-setuptools \
 
 RDEPENDS_${PN}_class-native = ""
 
+CFLAGS_append = " -Wno-deprecated-declarations"
+
 RPROVIDES_${PN} += "${PN}-console"
 
 inherit setuptools3