X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fftello.c;h=3edc0fb963e16e4e4ba63fa52e89fb0a38f7a596;hb=6c1b57f5d397d3d8c3212fc3f4c91faf64bf0654;hp=7054dd5b2a1dcfa4692d137cbd6a1ffc926a4324;hpb=cec93e99d19f54c8f310b8290bab9014891530e3;p=gnulib.git

diff --git a/lib/ftello.c b/lib/ftello.c
index 7054dd5b2..3edc0fb96 100644
--- a/lib/ftello.c
+++ b/lib/ftello.c
@@ -20,14 +20,24 @@
 /* Specification.  */
 #include <stdio.h>
 
+/* Get lseek.  */
+#include <unistd.h>
+
 #undef ftello
 #if !HAVE_FTELLO
+# undef ftell
 # define ftello ftell
 #endif
 
 off_t
 rpl_ftello (FILE *fp)
 {
+#if LSEEK_PIPE_BROKEN
+  /* mingw gives bogus answers rather than failure on non-seekable files.  */
+  if (lseek (fileno (fp), 0, SEEK_CUR) == -1)
+    return -1;
+#endif
+
 #if defined __SL64 && defined __SCLE /* Cygwin */
   if ((fp->_flags & __SL64) == 0)
     {