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Formerly remake.c.~34~

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This commit is contained in:
Roland McGrath 1992-08-27 23:29:25 +00:00
parent a301f9327a
commit 5aa595c99b
1 changed files with 40 additions and 36 deletions
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76
remake.c
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@ -37,7 +37,8 @@ static unsigned int files_remade = 0;
static int update_file (), update_file_1 (), check_dep (), touch_file ();
static void remake_file ();
static time_t name_mtime (), library_file_mtime ();
static time_t name_mtime ();
static int library_search ();
extern time_t f_mtime ();
/* Remake all the goals in the `struct dep' chain GOALS. Return -1 if nothing
@ -858,26 +859,24 @@ f_mtime (file, search)
{
/* If name_mtime failed, search VPATH. */
char *name = file->name;
if (vpath_search (&name))
if (vpath_search (&name)
/* Last resort, is it a library (-lxxx)? */
|| (name[0] == '-' && name[1] == 'l'
&& library_search (&name)))
{
rename_file (file, name);
check_renamed (file);
return file_mtime (file);
}
else
/* Last resort, is it a library (-lxxx)? */
if (name[0] == '-' && name[1] == 'l')
mtime = library_file_mtime (&name[2]);
}
}
/* Store the mtime into all the entries for this file. */
while (file != 0)
do
{
file->last_mtime = mtime;
file = file->prev;
}
} while (file != 0);
return mtime;
}
@ -898,40 +897,45 @@ name_mtime (name)
}
/* Return the mtime of a library file specified as -lLIBNAME,
searching for a suitable library file in the system library directories
and the VPATH directories. */
/* Search for a library file specified as -lLIBNAME, searching for a
suitable library file in the system library directories and the VPATH
directories. */
static time_t
library_file_mtime (lib)
char *lib;
static int
library_search (lib)
char **lib;
{
time_t mtime;
char *name;
static char *dirs[] =
{
"/usr/lib",
"/lib",
LIBDIR, /* Defined by configuration. */
0
};
name = concat ("/usr/lib/lib", lib, ".a");
mtime = name_mtime (name);
if (mtime == (time_t) -1)
mtime = name_mtime (name + 4);
if (mtime == (time_t) -1)
char *libname = &(*lib)[2];
char *buf = xmalloc (sizeof (LIBDIR) + 8 + strlen (libname) + 4 + 2 + 1);
char **dp;
for (dp = dirs; *dp != 0; ++dp)
{
char *local = concat ("/usr/local/lib/lib", lib, ".a");
mtime = name_mtime (local);
free (local);
}
if (mtime == (time_t) -1)
mtime = name_mtime (name + 9);
if (mtime == (time_t) -1)
{
char *newname = name + 9;
if (vpath_search (&newname))
sprintf (buf, "%s/lib%s.a", *dp, libname);
if (name_mtime (buf) != (time_t) -1)
{
mtime = name_mtime (newname);
free (newname);
*lib = buf;
return 1;
}
}
free (name);
sprintf (buf, "lib%s.a", libname);
libname = buf;
if (vpath_search (&libname))
{
free (buf);
*lib = libname;
return 1;
}
return mtime;
free (buf);
return 0;
}