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merge from gcc

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This commit is contained in:
DJ Delorie
2012-01-03 16:02:36 +00:00
parent 6e68186627
commit dd28faae1a
2 changed files with 29 additions and 5 deletions
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23
libiberty/make-relative-prefix.c
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@@ -1,6 +1,6 @@
/* Relative (relocatable) prefix support.
Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001, 2002, 2006 Free Software Foundation, Inc.
1999, 2000, 2001, 2002, 2006, 2012 Free Software Foundation, Inc.
This file is part of libiberty.
@@ -58,6 +58,9 @@ relative prefix can be found, return @code{NULL}.
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#include <string.h>
@@ -248,7 +251,11 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
if (prefixlen < 2)
prefixlen = 2;
nstore = (char *) alloca (prefixlen + strlen (progname) + 1);
nstore = (char *) alloca (prefixlen + strlen (progname) + 1
#ifdef HAVE_HOST_EXECUTABLE_SUFFIX
+ strlen (HOST_EXECUTABLE_SUFFIX)
#endif
);
startp = endp = temp;
while (1)
@@ -263,7 +270,7 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
}
else
{
strncpy (nstore, startp, endp - startp);
memcpy (nstore, startp, endp - startp);
if (! IS_DIR_SEPARATOR (endp[-1]))
{
nstore[endp - startp] = DIR_SEPARATOR;
@@ -279,8 +286,14 @@ make_relative_prefix_1 (const char *progname, const char *bin_prefix,
#endif
)
{
progname = nstore;
break;
#if defined (HAVE_SYS_STAT_H) && defined (S_ISREG)
struct stat st;
if (stat (nstore, &st) >= 0 && S_ISREG (st.st_mode))
#endif
{
progname = nstore;
break;
}
}
if (*endp == 0)