Ahn Ki-yung wrote:

>SunOS 5.8
>Reading specs from /usr/local/lib/gcc-lib/sparc-sun-solaris2.8/2.95.3/specs
>gcc version 2.95.3 20010315 (release) 
>In the posix related libaries there are two forign call definition.
>
>foreign import ccall unsafe "getpwuid_r"
>  c_getpwuid_r :: CUid -> Ptr CPasswd ->
>            CString -> CSize -> Ptr (Ptr CPasswd) -> IO CInt 
>
>foreign import ccall unsafe "getpwnam_r"
>  c_getpwnam_r :: CString -> Ptr CPasswd ->
>            CString -> CSize -> Ptr (Ptr CPasswd) -> IO CInt
>
>But the gcc says there are too many argument.
>There are two ways to go around.
>I change the foriegn call definition "getpwuid_r" ==> "__posix_getpwuid_r"
>I change the foriegn call definition "getpwnam_r" ==> "__posix_getpwnam_r"
>
>Another way is to tweak preprocessor macro definition.
>I believe this is possible but I don't how to tweak it.
>My <pwd.h> file is like this.
>
>GHC implementors and porters should be awared of this.
>
>p.s. Compiling GHC project took almost whole day long :-(
>     Bootstraping from 4.08.2 and stage1, stange 2 ... :-(
>
>  
>


-- 
Ahn Ki-yung


/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */

/*      THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T     */
/*      The copyright notice above does not evidence any        */
/*      actual or intended publication of such source code.     */

/*
 * Copyright (c) 1996, by Sun Microsystems, Inc.
 * All rights reserved.
 */

#ifndef _PWD_H
#define _PWD_H

#pragma ident   "@(#)pwd.h      1.19    96/03/12 SMI"   /* SVr4.0 1.3.1.9 */

#include <sys/feature_tests.h>

#include <sys/types.h>

#if defined(__EXTENSIONS__) || \
        (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))
#include <stdio.h>
#endif

#ifdef  __cplusplus
extern "C" {
#endif

struct passwd {
        char    *pw_name;
        char    *pw_passwd;
        uid_t   pw_uid;
        gid_t   pw_gid;
        char    *pw_age;
        char    *pw_comment;
        char    *pw_gecos;
        char    *pw_dir;
        char    *pw_shell;
};

#if defined(__EXTENSIONS__) || \
        (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))
struct comment {
        char    *c_dept;
        char    *c_name;
        char    *c_acct;
        char    *c_bin;
};
#endif /* defined(__EXTENSIONS__) || (!defined(_POSIX_C_SOURCE) && ... */

#if defined(__STDC__)

extern struct passwd *getpwuid(uid_t);          /* MT-unsafe */
extern struct passwd *getpwnam(const char *);   /* MT-unsafe */

#if defined(__EXTENSIONS__) || \
        (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))
extern struct passwd *getpwent_r(struct passwd *, char *, int);
extern struct passwd *fgetpwent_r(FILE *, struct passwd *, char *, int);
extern struct passwd *fgetpwent(FILE *);        /* MT-unsafe */
extern int putpwent(const struct passwd *, FILE *);
#endif /* defined(__EXTENSIONS__) || !defined(_POSIX_C_SOURCE) ... */

#if defined(__EXTENSIONS__) || \
        (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
        defined(_XPG4_2)
extern void endpwent(void);
extern struct passwd *getpwent(void);           /* MT-unsafe */
extern void setpwent(void);
#endif /* defined(__EXTENSIONS__) || (!defined(_POSIX_C_SOURCE) && ... */

#else  /* (__STDC__) */

extern struct passwd *getpwuid();               /* MT-unsafe */
extern struct passwd *getpwnam();               /* MT-unsafe */

#if defined(__EXTENSIONS__) || \
        (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))
extern struct passwd *getpwent_r();
extern struct passwd *fgetpwent_r();

extern struct passwd *fgetpwent();              /* MT-unsafe */
extern int putpwent();
#endif /* defined(__EXTENSIONS__) || (!defined(_POSIX_C_SOURCE) && ... */

#if defined(__EXTENSIONS__) || \
        (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
        defined(_XPG4_2)
extern void endpwent();
extern struct passwd *getpwent();               /* MT-unsafe */
extern void setpwent();
#endif /* defined(__EXTENSIONS__) || (!defined(_POSIX_C_SOURCE) && ... */

#endif /* (__STDC__) */

/*
 * getpwuid_r() & getpwnam_r() prototypes are defined here.
 */

/*
 * Previous releases of Solaris, starting at 2.3, provided definitions of
 * various functions as specified in POSIX.1c, Draft 6.  For some of these
 * functions, the final POSIX 1003.1c standard had a different number of
 * arguments and return values.
 *
 * The following segment of this header provides support for the standard
 * interfaces while supporting applications written under earlier
 * releases.  The application defines appropriate values of the feature
 * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate
 * whether it was written to expect the Draft 6 or standard versions of
 * these interfaces, before including this header.  This header then
 * provides a mapping from the source version of the interface to an
 * appropriate binary interface.  Such mappings permit an application
 * to be built from libraries and objects which have mixed expectations
 * of the definitions of these functions.
 *
 * For applications using the Draft 6 definitions, the binary symbol is
 * the same as the source symbol, and no explicit mapping is needed.  For
 * the standard interface, the function func() is mapped to the binary
 * symbol _posix_func().  The preferred mechanism for the remapping is a
 * compiler #pragma.  If the compiler does not provide such a #pragma, the
 * header file defines a static function func() which calls the
 * _posix_func() version; this is required if the application needs to
 * take the address of func().
 *
 * NOTE: Support for the Draft 6 definitions is provided for compatibility
 * only.  New applications/libraries should use the standard definitions.
 */

#if     defined(__EXTENSIONS__) || \
        (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \
        (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)

#if     defined(__STDC__)

#if     (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)

#ifdef __PRAGMA_REDEFINE_EXTNAME
extern int getpwuid_r(uid_t, struct passwd *, char *, int, struct passwd **);
extern int getpwnam_r(const char *, struct passwd *, char *,
                                                        int, struct passwd **);
#pragma redefine_extname getpwuid_r __posix_getpwuid_r
#pragma redefine_extname getpwnam_r __posix_getpwnam_r
#else  /* __PRAGMA_REDEFINE_EXTNAME */

static int
getpwuid_r(uid_t __uid, struct passwd *__pwd, char *__buf, int __len,
                                                        struct passwd **__res)
{
        extern int __posix_getpwuid_r(uid_t, struct passwd *, char *, int,
                                                        struct passwd **);
        return (__posix_getpwuid_r(__uid, __pwd, __buf, __len, __res));
}
static int
getpwnam_r(const char *__cb, struct passwd *__pwd, char *__buf, int __len,
                                                        struct passwd **__res)
{
        extern int __posix_getpwnam_r(const char *, struct passwd *, char *,
                                                        int, struct passwd **);
        return (__posix_getpwnam_r(__cb, __pwd, __buf, __len, __res));
}
#endif /* __PRAGMA_REDEFINE_EXTNAME */

#else  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */

extern struct passwd *getpwuid_r(uid_t, struct passwd *, char *, int);
extern struct passwd *getpwnam_r(const char *, struct passwd *, char *, int);

#endif  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */

#else  /* __STDC__ */

#if     (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)

#ifdef __PRAGMA_REDEFINE_EXTNAME
extern int getpwuid_r();
extern int getpwnam_r();
#pragma redefine_extname getpwuid_r __posix_getpwuid_r
#pragma redefine_extname getpwnam_r __posix_getpwnam_r
#else  /* __PRAGMA_REDEFINE_EXTNAME */

static int
getpwuid_r(__uid, __pwd, __buf, __len, __res)
        uid_t __uid;
        struct passwd *__pwd;
        char *__buf;
        int __len;
        struct passwd **__res;
{
        extern int __posix_getpwuid_r();
        return (__posix_getpwuid_r(__uid, __pwd, __buf, __len, __res));
}
static int
getpwnam_r(__cb, __pwd, __buf, __len, __res)
        char *__cb;
        struct passwd *__pwd;
        char *__buf;
        int __len;
        struct passwd **__res;
{
        extern int __posix_getpwnam_r();
        return (__posix_getpwnam_r(__cb, __pwd, __buf, __len, __res));
}
#endif /* __PRAGMA_REDEFINE_EXTNAME */

#else  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */

extern struct passwd *getpwuid_r();
extern struct passwd *getpwnam_r();

#endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */

#endif /* __STDC__ */

#endif /* defined(__EXTENSIONS__) || (__STDC__ == 0 ... */

#ifdef  __cplusplus
}
#endif

#endif /* _PWD_H */

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