* gcov.c (canonicalize_name): Protect use of S_ISLNK.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181367 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 8 insertions, 3 deletions

diff --git a/gcc/gcov.c b/gcc/gcov.c
index dffb827bdf7..c5cc0efdf1a 100644
--- a/gcc/gcov.c
+++ b/gcc/gcov.c
@@ -1688,10 +1688,15 @@ canonicalize_name (const char *name)
 	{
 	  /* '..', we can only elide it and the previous directory, if
 	     we're not a symlink.  */
-	  struct stat buf;
-	  
+	  struct stat ATTRIBUTE_UNUSED buf;
+
 	  *ptr = 0;
-	  if (dd_base == ptr || stat (result, &buf) || S_ISLNK (buf.st_mode))
+	  if (dd_base == ptr
+#if defined (S_ISLNK)
+	      /* S_ISLNK is not POSIX.1-1996.  */
+	      || stat (result, &buf) || S_ISLNK (buf.st_mode)
+#endif
+	      )
 	    {
 	      /* Cannot elide, or unreadable or a symlink.  */
 	      dd_base = ptr + 2 + slash;