[PATCH] collect2 -fpreprocessed bug

[John David Anglin]

This change fixes PR 35665.  The constructor file generated by
collect2 is wrapped in

#ifdef __cplusplus
...
#endif

This causes a problem since collect2 inherits the options passed to
the driver (gfortran in the PR).  When -fpreprocessed is used, preprocessing
is not done and we end up with garbage in the c file.

collect2 uses "-x c" for the c compilation, so the language is always
C.  Thus, it appears unnecessary to add defines to make the file C++
compatible.

Ok for trunk?

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

2008-03-31  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR driver/35665
	* collect2.c (write_c_file): Don't wrap in "#ifdef __cplusplus".

Index: collect2.c
===================================================================
--- collect2.c	(revision 133160)
+++ collect2.c	(working copy)
@@ -2043,14 +2043,12 @@
 static void
 write_c_file (FILE *stream, const char *name)
 {
-  fprintf (stream, "#ifdef __cplusplus\nextern \"C\" {\n#endif\n");
 #ifndef LD_INIT_SWITCH
   if (! shared_obj)
     write_c_file_glob (stream, name);
   else
 #endif
     write_c_file_stat (stream, name);
-  fprintf (stream, "#ifdef __cplusplus\n}\n#endif\n");
 }
 
 #ifdef COLLECT_EXPORT_LIST