cpphash.c (save_expansion): Clear PREV_WHITE on tokens immediately following a paste operator.

	* cpphash.c (save_expansion): Clear PREV_WHITE on tokens
	immediately following a paste operator.
	* cppinit.c (sort_options): New function (only for HOST_EBCDIC).
	(cpp_reader_init): Call it, if HOST_EBCDIC.
	(cpp_handle_options): Do not sort option list here.
	(handle_option): Rename to cpp_handle_option and export.
	* cpplex.c (cpp_scan_buffer_nooutput, cpp_scan_buffer): Use
	_cpp_get_token directly.
	(cpp_scan_line): Return 0 at EOF, 1 otherwise.
	* cpplib.c (cpp_push_buffer): Don't set new->lineno to 1.
	* cpplib.h: Prototype cpp_handle_option.  Update prototype of
	cpp_scan_line.

From-SVN: r35052

1 files changed, 7 insertions, 0 deletions

diff --git a/gcc/cpphash.c b/gcc/cpphash.c
index 8c4be52..b7f3944 100644
--- a/gcc/cpphash.c
+++ b/gcc/cpphash.c
@@ -576,6 +576,11 @@ save_expansion (pfile, info)
 	    dest->flags = token[-1].flags | STRINGIFY_ARG;
 	  else
 	    dest->flags = token->flags;  /* Particularly PREV_WHITE.  */
+	  /* Turn off PREV_WHITE if we immediately follow a paste.
+	     That way, even if the paste turns out to be illegal, there
+	     will be no space between the two tokens in the output.  */
+	  if (token[-1].type == CPP_PASTE)
+	    dest->flags &= ~PREV_WHITE;
 	  dest++;
 	  continue;
 
@@ -602,6 +607,8 @@ save_expansion (pfile, info)
 	  dest->val.str.text = buf;
 	  buf += dest->val.str.len;
 	}
+      if (token[-1].type == CPP_PASTE)
+	dest->flags &= ~PREV_WHITE;
       dest++;
     }