Bug 517

From tcltk:
errno.h now has
	# define ENOTSUP EOPNOTSUPP
which resulted in duplicate case.

All programs that use pam

/usr/include/security/_pam_macros.h has
	extern char *strdup(const char *s);
which, since glibc21 implements many string functions as macros,
fails to compile.

From e2fsprogs, linux/major.h

Old:
	#define	SCSI_DISK_MAJOR	8
New:
	#define	SCSI_DISK0_MAJOR 8

If accessing struct exit_status after #include <utmp.h>, you
must add -D_GNU_SOURCE to expose the structure elements.

smtp.c:1008: warning: preprocessing directive not recognized within
macro arg

triggered by this code:

sm_reply.length =
        strlen (strcpy (sm_reply.text, sm_wfp == NULL ? "no socket
opened"
            : sm_alarmed ? "write to socket timed out"
#ifdef MPOP
            : sm_ispool ? "error writing to spool file"
#endif
            : "error writing to socket"));

The routine _cleanup (runs actions scheduled by atexit) is
now static in the shared libc.

Accessing fds_bits (the int32 array of bits used by FD_SET and
friends) is not possible unless specifying XPG4 compatibility
explicitly. Meanwhile the FD_* access works just fine.

<limits.h> needs to be explicitly included.

C files formerly making stdio declarations as constants such as:

FILE *foo = {stdin}, *bar = {stdout};

no longer work and should be declared as variables:

FILE *foo;
FILE *bar;

main(){
foo = stdin;
bar = stdout;
}

Things that will no longer work (that did) if they are defined or
declared.

Any mem thing:
#define mem*


strpbrk:
extern char *strpbrk();     register char CONST *s1;
    register char CONST *s2;
{
    register int n = strlen(s2);

    if (! *s2)
        return (char *) s1;

    while (*s1) {
        if (! strncmp(s2,s1,n))
            return (char *) s1;
        s1++;
    }
    return((char *) 0);
}

rewrites of string maniupulation such as:

That was supposed to be---

strpbrk:
extern char *strpbrk();     register char CONST *s1;


rewrites of string maniupulation such as:

char * strstr(s1, s2)
    register char CONST *s1;
    register char CONST *s2;
{
    register int n = strlen(s2);

    if (! *s2)
        return (char *) s1;
    while (*s1) {
        if (! strncmp(s2,s1,n))
            return (char *) s1;
        s1++;
    }
    return((char *) 0);
}

You need to add -D_GNU_SOURCE to get WTMPX_FILE defined.

I believe we have more or less figured out all these issues.  If
people have additional things to add, reopen the 'bug'.

*** Bug 2244 has been marked as a duplicate of this bug. ***

I am not certain this error is due to glibc or not.  I am
having extreme difficulty compiling (meaning I cannot
compile at all) a number of useful applications which worked
flawlessly under the last distribution of redhat I used.  In
particular, ssh, version 1.x.x or 2.x.x will not compile at
all, nor will the binary RPMS for ssh that I have found work
properly.