* environ.cc (struct parse_thing): Add transparent_exe option.

	* fhandler_disk_file.cc (fhandler_disk_file::link): Accomodate
	transparent_exe option.  Add .exe suffix for links to executable files,
	if transparent_exe is set.
	* fhandler_process.cc (fhandler_process::fill_filebuf): Remove .exe
	suffix if transparent_exe option is set.
	* path.cc (symlink_worker): Accomodate transparent_exe option.
	(realpath): Don't tack on .exe suffix if transparent_exe is set.
	* syscalls.cc (transparent_exe): New global variable.
	(unlink): Accomodate transparent_exe option.
	(open): Ditto.
	(link): Ditto.
	(rename): Ditto. Maybe add .exe suffix when renaming executable files.
	(pathconf): Accomodate transparent_exe option.
	* winsup.h: Declare transparent_exe.

1 files changed, 10 insertions, 11 deletions

diff --git a/winsup/cygwin/fhandler_process.cc b/winsup/cygwin/fhandler_process.cc
index cb0b80520..28fd28c39 100644
--- a/winsup/cygwin/fhandler_process.cc
+++ b/winsup/cygwin/fhandler_process.cc
@@ -451,19 +451,18 @@ fhandler_process::fill_filebuf ()
 	else
 	  {
 	    mount_table->conv_to_posix_path (p->progname, filebuf, 1);
-#if 0
-	    /* Temporarily disabled.  The link will have a suffix so that
-	       an open(2) call will succeed on /proc/$PID/exe now.  This
-	       might become unnecessary if open(2) handles the .exe suffix
-	       at one point. */
-	    int len = strlen (filebuf);
-	    if (len > 4)
+	    /* If transparent_exe isn't set, the link keeps its suffix so that
+	       an open(2) call will succeed on /proc/$PID/exe. */
+	    if (transparent_exe)
 	      {
-		char *s = filebuf + len - 4;
-		if (strcasematch (s, ".exe"))
-		  *s = 0;
+		int len = strlen (filebuf);
+		if (len > 4)
+		  {
+		    char *s = filebuf + len - 4;
+		    if (strcasematch (s, ".exe"))
+		      *s = 0;
+		  }
 	      }
-#endif
 	  }
 	filesize = strlen (filebuf);
 	break;