[PATCH 1/3] libselinux: add a const to suppress a build warning with Python 3.7

[Nicolas Iooss]

On systems using Python 3.7, when compiling libselinux Python wrappers
(with "make install-pywrap"), the following warning is reported by gcc:

    audit2why.c: In function ‘analyze’:
    audit2why.c:364:11: warning: assignment discards ‘const’ qualifier
    from pointer target type [-Wdiscarded-qualifiers]
       permstr = _PyUnicode_AsString( strObj );
               ^

Make permstr "const char *" in order to suppress this warning.

Signed-off-by: Nicolas Iooss <nicolas.io...@m4x.org>
---
 libselinux/src/audit2why.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libselinux/src/audit2why.c b/libselinux/src/audit2why.c
index 0331fdfd8df9..5a1e69a8269b 100644
--- a/libselinux/src/audit2why.c
+++ b/libselinux/src/audit2why.c
@@ -354,7 +354,7 @@ static PyObject *analyze(PyObject *self 
__attribute__((unused)) , PyObject *args
        /* iterate over items of the list, grabbing strings, and parsing
           for numbers */
        for (i=0; i<numlines; i++){
-               char *permstr;
+               const char *permstr;
 
                /* grab the string object from the next element of the list */
                strObj = PyList_GetItem(listObj, i); /* Can't fail */
-- 
2.18.0


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