[issue6420] Fix warning in nismodule.c on OpenBSD

[Henry Precheur]

New submission from Henry Precheur <henry at precheur.org>:

On OpenBSD the file /usr/include/rpcsvc/ypclnt.h contains the following
declaration:

struct ypall_callback {
	/* return non-0 to stop getting called */
	int (*foreach)(unsigned long, char *, int, char *, int, void *);
	char *data;		/* opaque pointer for use of callback fn */
};

the 'foreach' function pointer's declaration in Modules/nismodule.c is
different:

gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -O3 -Wall
-Wstrict-prototypes -I. -I./Include -I/usr/local/include -IInclude
-I/home/henry/py3k -c /home/henry/py3k/Modules/nismodule.c -o
build/temp.openbsd-4.6-amd64-3.2/home/henry/py3k/Modules/nismodule.o
/home/henry/py3k/Modules/nismodule.c: In function `nis_cat':
/home/henry/py3k/Modules/nismodule.c:208: warning: assignment from
incompatible pointer type


The attached patch fixes this very important issue :)

----------
components: Build, Library (Lib)
files: patch-Modules_nismodule_c
messages: 90128
nosy: henry.precheur
severity: normal
status: open
title: Fix warning in nismodule.c on OpenBSD
versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2
Added file: http://bugs.python.org/file14450/patch-Modules_nismodule_c

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<http://bugs.python.org/issue6420>
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