Imported Upstream version 1.21

[tar] / lib / getdelim.c

diff --git a/lib/getdelim.c b/lib/getdelim.c
index 286a460f816d36818827d204ebbe9e631455acc6..4cd1c1171e6a7e6c0849281fe252d615a8215056 100644 (file)
--- a/lib/getdelim.c
+++ b/lib/getdelim.c
@@ -35,13 +35,18 @@
 #ifndef SSIZE_MAX
 # define SSIZE_MAX ((ssize_t) (SIZE_MAX / 2))
 #endif
-#if !HAVE_FLOCKFILE
+
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+# define getc_maybe_unlocked(fp)       getc(fp)
+#elif !HAVE_FLOCKFILE || !HAVE_FUNLOCKFILE || !HAVE_DECL_GETC_UNLOCKED
 # undef flockfile
-# define flockfile(x) ((void) 0)
-#endif
-#if !HAVE_FUNLOCKFILE
 # undef funlockfile
+# define flockfile(x) ((void) 0)
 # define funlockfile(x) ((void) 0)
+# define getc_maybe_unlocked(fp)       getc(fp)
+#else
+# define getc_maybe_unlocked(fp)       getc_unlocked(fp)
 #endif
 
 /* Read up to (and including) a DELIMITER from FP into *LINEPTR (and
@@ -81,7 +86,7 @@ getdelim (char **lineptr, size_t *n, int delimiter, FILE *fp)
     {
       int i;
 
-      i = getc (fp);
+      i = getc_maybe_unlocked (fp);
       if (i == EOF)
        {
          result = -1;