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* configure.in: Detect declaration for canonicalize_file_name.

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* utils.c (canonicalize_file_name): Declare, if needed.
        (gdb_realpath): Prefer realpath if available and usable.
        * config.in, configure: Rebuild.
This commit is contained in:
Richard Henderson
2002-03-15 00:44:49 +00:00
parent bd2b03193d
commit a4db0f0748
5 changed files with 467 additions and 413 deletions
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27
gdb/utils.c
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@@ -81,6 +81,11 @@ extern PTR realloc ();
#ifdef NEED_DECLARATION_FREE
extern void free ();
#endif
/* Actually, we'll never have the decl, since we don't define _GNU_SOURCE. */
#if defined(HAVE_CANONICALIZE_FILE_NAME) \
&& defined(NEED_DECLARATION_CANONICALIZE_FILE_NAME)
extern char *canonicalize_file_name (const char *);
#endif
#undef XMALLOC
#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
@@ -2532,20 +2537,24 @@ string_to_core_addr (const char *my_string)
char *
gdb_realpath (const char *filename)
{
#ifdef HAVE_CANONICALIZE_FILE_NAME
return canonicalize_file_name (filename);
#elif defined (HAVE_REALPATH)
#if defined (PATH_MAX)
#if defined(HAVE_REALPATH)
# if defined (PATH_MAX)
char buf[PATH_MAX];
#elif defined (MAXPATHLEN)
# define USE_REALPATH
# elif defined (MAXPATHLEN)
char buf[MAXPATHLEN];
#elif defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
# define USE_REALPATH
# elif defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
char *buf = alloca ((size_t)pathconf ("/", _PC_PATH_MAX));
#else
#error "Neither PATH_MAX nor MAXPATHLEN defined"
#endif
# define USE_REALPATH
# endif
#endif /* HAVE_REALPATH */
#if defined(USE_REALPATH)
char *rp = realpath (filename, buf);
return xstrdup (rp ? rp : filename);
#elif defined(HAVE_CANONICALIZE_FILE_NAME)
return canonicalize_file_name (filename);
#else
return xstrdup (filename);
#endif