Tim-Philipp Müller authored Dec 31, 2020 and Akira TAGOH committed Jan 08, 2021

fcformat.c:762:44: warning: expression which evaluates to zero treated as a null pointer constant of type 'FcChar8 *' (aka 'unsigned char *') [-Wnon-literal-null-conversion]
                if (!FcNameUnparseValue (buf, &l->value, '\0'))
                                                         ^~~~
fcformat.c:769:38: warning: expression which evaluates to zero treated as a null pointer constant of type 'FcChar8 *' (aka 'unsigned char *') [-Wnon-literal-null-conversion]
            FcNameUnparseValueList (buf, l, '\0');
                                            ^~~~