* cppinit.c (cpp_reader_init): Remove handling of warn_paste

        command line options.
        (cpp_handle_option): Similarly.
        * cpplib.h (struct cpp_options): Remove warn_paste.
        * cppmacro.c (paste_tokens): Apart from assembler, make
        unpasteable token warning mandatory.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37804 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 8 insertions, 5 deletions

diff --git a/gcc/cppmacro.c b/gcc/cppmacro.c
index af520ef036e..f9291bcdc40 100644
--- a/gcc/cppmacro.c
+++ b/gcc/cppmacro.c
@@ -379,17 +379,20 @@ paste_tokens (pfile, lhs, rhs)
   
   if (type == CPP_EOF)
     {
-      if (CPP_OPTION (pfile, warn_paste))
+      /* Mandatory warning for all apart from assembler.  */
+      if (CPP_OPTION (pfile, lang) != CLK_ASM)
 	cpp_warning (pfile,
 	 "pasting \"%s\" and \"%s\" does not give a valid preprocessing token",
 		     cpp_token_as_text (pfile, lhs),
 		     cpp_token_as_text (pfile, rhs));
 
       /* The standard states that behaviour is undefined.  By the
-	 principle of least surpise, we step back before the RHS, and
-	 mark it to prevent macro expansion.  Tests in the testsuite
-	 rely on clearing PREV_WHITE here, though you could argue we
-	 should actually set it.  */
+         principle of least surpise, we step back before the RHS, and
+         mark it to prevent macro expansion.  Tests in the testsuite
+         rely on clearing PREV_WHITE here, though you could argue we
+         should actually set it.  Assembler can have '.' in labels and
+         so requires that we don't insert spaces there.  Maybe we should
+	 change this to put out a space unless it's assembler.  */
       rhs->flags &= ~PREV_WHITE;
       rhs->flags |= NO_EXPAND;
       return 1;