cpplib.c (do_sccs): Handle #sccs on all systems.

	* cpplib.c (do_sccs): Handle #sccs on all systems.
	* system.h (SCCS_DIRECTIVE): Poison.
	* config/darwin.h, config/freebsd.h, config/netbsd.h,
	config/ptx4.h, config/svr3.h, config/svr4.h, config/alpha/elf.h,
	config/arm/linux-elf.h, config/c4x/c4x.h, config/d30v/d30v.h,
	config/i370/i370.h, config/i386/gas.h, config/i386/sco5.h,
	config/i960/i960.h, config/m68hc11/m68hc11.h, config/m68k/3b1.h,
	config/m68k/3b1g.h, config/m68k/crds.h, config/m68k/mot3300.h,
	config/m68k/pbb.h, config/m88k/m88k.h, config/mips/mips.h,
	config/sparc/pbd.h, config/stormy16/stormy16.h, config/vax/vaxv.h:
	Remove all references to SCCS_DIRECTIVE.
	* doc/cpp.texi, doc/tm.texi: Update.

From-SVN: r55542

gcc/ChangeLog

+2002-07-17  Neil Booth  <neil@daikokuya.co.uk>
+
+	* cpplib.c (do_sccs): Handle #sccs on all systems.
+	* system.h (SCCS_DIRECTIVE): Poison.
+	* config/darwin.h, config/freebsd.h, config/netbsd.h,
+	config/ptx4.h, config/svr3.h, config/svr4.h, config/alpha/elf.h,
+	config/arm/linux-elf.h, config/c4x/c4x.h, config/d30v/d30v.h,
+	config/i370/i370.h, config/i386/gas.h, config/i386/sco5.h,
+	config/i960/i960.h, config/m68hc11/m68hc11.h, config/m68k/3b1.h,
+	config/m68k/3b1g.h, config/m68k/crds.h, config/m68k/mot3300.h,
+	config/m68k/pbb.h, config/m88k/m88k.h, config/mips/mips.h,
+	config/sparc/pbd.h, config/stormy16/stormy16.h, config/vax/vaxv.h:
+	Remove all references to SCCS_DIRECTIVE.
+	* doc/cpp.texi, doc/tm.texi: Update.
+
 Wed Jul 17 19:23:32 2002  J"orn Rennecke <joern.rennecke@superh.com>
 
 	* regrename.c (maybe_mode_change): New function.

gcc/config/alpha/elf.h

@@ -68,9 +68,6 @@ do {								\
 #undef  IDENT_ASM_OP
 #define IDENT_ASM_OP "\t.ident\t"
 
-/* Allow #sccs in preprocessor.  */
-#define SCCS_DIRECTIVE
-
 /* Output #ident as a .ident.  */
 #undef  ASM_OUTPUT_IDENT
 #define ASM_OUTPUT_IDENT(FILE, NAME) \

gcc/config/arm/linux-elf.h

@@ -99,9 +99,6 @@ Boston, MA 02111-1307, USA.  */
 	builtin_assert ("system=posix");	\
     } while (0)
 
-/* Allow #sccs in preprocessor.  */
-#define SCCS_DIRECTIVE
-
 /* This is how we tell the assembler that two symbols have the same value.  */
 #define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
   do					   \

gcc/config/c4x/c4x.h

@@ -1793,10 +1793,6 @@ do {						\
 #define DOUBLE_TYPE_SIZE	32
 #define LONG_DOUBLE_TYPE_SIZE	64 /* Actually only 40.  */
 
-/* Allow #sccs in preprocessor.  */
-
-#define SCCS_DIRECTIVE
-
 /* Output #ident as a .ident.  */
 
 #define ASM_OUTPUT_IDENT(FILE, NAME) \

gcc/config/d30v/d30v.h

@@ -4286,12 +4286,6 @@ fprintf (STREAM, "\t.word .L%d\n", VALUE)
    should be used on RISC machines.  */
 /* #define INTEGRATE_THRESHOLD(DECL) */
 
-/* Define this if the preprocessor should ignore `#sccs' directives and print
-   no error message.
-
-   Defined in svr4.h.  */
-/* #define SCCS_DIRECTIVE */
-
 /* Define this macro if the system header files support C++ as well as C.  This
    macro inhibits the usual method of using system header files in C++, which
    is to pretend that the file's contents are enclosed in `extern "C" {...}'.  */

gcc/config/darwin.h

@@ -103,10 +103,6 @@ Boston, MA 02111-1307, USA.  */
 #undef	DOLLARS_IN_IDENTIFIERS
 #define DOLLARS_IN_IDENTIFIERS 2
 
-/* Allow #sccs (but don't do anything). */
-
-#define SCCS_DIRECTIVE
-
 /* We use Dbx symbol format.  */
 
 #define DBX_DEBUGGING_INFO

gcc/config/freebsd.h

@@ -67,10 +67,6 @@ Boston, MA 02111-1307, USA.  */
 #undef  NO_IMPLICIT_EXTERN_C
 #define NO_IMPLICIT_EXTERN_C	1
 
-/* Allow #sccs in preprocessor.  */
-#undef  SCCS_DIRECTIVE
-#define SCCS_DIRECTIVE	1
-
 /* Make gcc agree with FreeBSD's standard headers (<machine/ansi.h>, etc...)  */
 
 #undef  WCHAR_TYPE

gcc/config/i370/i370.h

@@ -1905,9 +1905,6 @@ abort(); \
 ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10),    \
   sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO)))
  
-/* Allow #sccs in preprocessor.  */
-#define SCCS_DIRECTIVE
-
  /* Implicit library calls should use memcpy, not bcopy, etc.  */
 #define TARGET_MEM_FUNCTIONS
  

gcc/config/i386/gas.h

@@ -45,10 +45,6 @@ Boston, MA 02111-1307, USA.  */
 
 #define SDB_DEBUGGING_INFO
 
-/* Allow #sccs in preprocessor.  */
-
-#define SCCS_DIRECTIVE
-
 /* Output #ident as a .ident.  */
 
 #define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);

gcc/config/i386/sco5.h

@@ -541,9 +541,6 @@ init_section ()								\
   do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME);		\
 	fputc ('\n', FILE); } while (0)
 
-#undef SCCS_DIRECTIVE
-#define SCCS_DIRECTIVE 1
-
 /*
  * Define sizes and types
  */

gcc/config/i960/i960.h

@@ -1151,9 +1151,6 @@ struct cum_args { int ca_nregparms; int ca_nstackparms; };
 /* Define this as 1 if `char' should by default be signed; else as 0.  */
 #define DEFAULT_SIGNED_CHAR 0
 
-/* Allow and ignore #sccs directives.  */
-#define	SCCS_DIRECTIVE
-
 /* Max number of bytes we can move from memory to memory
    in one reasonably fast instruction.  */
 #define MOVE_MAX 16

gcc/config/m68hc11/m68hc11.h

@@ -1706,9 +1706,6 @@ do {                                                                    \
    purposes) so give the MEM rtx a byte's mode.  */
 #define FUNCTION_MODE		QImode
 
-/* define SCCS_DIRECTIVE if SCCS directives should be ignored */
-#define SCCS_DIRECTIVE		1
-
 /* Allow $ in identifiers */
 #define DOLLARS_IN_IDENTIFIERS	1
 

gcc/config/m68k/3b1.h

@@ -50,10 +50,6 @@ Boston, MA 02111-1307, USA.  */
   "%{!shlib:%{pg:mcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}\
    %{shlib:crt0s.o%s shlib.ifile%s} "
 
-/* cpp has to support a #sccs directive for the /usr/include files */
-
-#define SCCS_DIRECTIVE
-
 /* Make output for SDB.  */
 
 #define SDB_DEBUGGING_INFO

gcc/config/m68k/3b1g.h

@@ -43,9 +43,6 @@ Boston, MA 02111-1307, USA.  */
 /* This is (not really) BSD, so (but) it wants DBX format.  */
 #define DBX_DEBUGGING_INFO
 
-/* Brain damage.  */
-#define SCCS_DIRECTIVE
-
 /* Specify how to pad function arguments.
    Value should be `upward', `downward' or `none'.
    Same as the default, except no padding for large or variable-size args.  */

gcc/config/m68k/crds.h

@@ -68,10 +68,6 @@ Boston, MA 02111-1307, USA.  */
 #undef CC1_SPEC
 #define CC1_SPEC "%{O2:-fstrength-reduce}"
 
-/* cpp has to support a #sccs directive for the /usr/include files */
-
-#define SCCS_DIRECTIVE
-
 /* Make output for SDB.  */
 
 /* #define SDB_DEBUGGING_INFO UNOS casm has no debugging :-( */

gcc/config/m68k/mot3300.h

@@ -118,10 +118,6 @@ Boston, MA 02111-1307, USA.  */
 #undef PARM_BOUNDARY
 #define PARM_BOUNDARY 16
 
-/* cpp has to support a #sccs directive for the /usr/include files */
-
-#define SCCS_DIRECTIVE
-
 /* Make output for SDB.  */
 
 #define SDB_DEBUGGING_INFO

gcc/config/m68k/pbb.h

@@ -83,10 +83,6 @@ Boston, MA 02111-1307, USA.  */
 
 #define ENDFILE_SPEC "crtn.o%s"
 
-/* cpp has to support a #sccs directive for the /usr/include files */
-
-#define SCCS_DIRECTIVE
-
 /* GAS register prefix assembly syntax: */
 
 /* User labels have no prefix */

gcc/config/m88k/m88k.h

@@ -1446,9 +1446,6 @@ enum reg_class { NO_REGS, AP_REG, XRF_REGS, GENERAL_REGS, AGRF_REGS,
 /* The 88open ABI says size_t is unsigned int.  */
 #define SIZE_TYPE "unsigned int"
 
-/* Allow and ignore #sccs directives */
-#define SCCS_DIRECTIVE
-
 /* Handle #pragma pack and sometimes #pragma weak.  */
 #define HANDLE_SYSV_PRAGMA
 

gcc/config/mips/mips.h

@@ -4350,9 +4350,6 @@ do {									\
 #define ASM_OUTPUT_ASCII(STREAM, STRING, LEN)				\
   mips_output_ascii (STREAM, STRING, LEN)
 
-/* Handle certain cpp directives used in header files on sysV.  */
-#define SCCS_DIRECTIVE
-
 /* Output #ident as a in the read-only data section.  */
 #undef  ASM_OUTPUT_IDENT
 #define ASM_OUTPUT_IDENT(FILE, STRING)					\

gcc/config/netbsd.h

@@ -128,11 +128,6 @@ Boston, MA 02111-1307, USA.  */
     fprintf ((STREAM), "void __fini() {\n\t%s();\n}\n", (FUNC));	\
   } while (0)
 
-/* Allow #sccs in preprocessor.  */
-
-#undef SCCS_DIRECTIVE
-#define SCCS_DIRECTIVE
-
 #undef TARGET_HAS_F_SETLKW
 #define TARGET_HAS_F_SETLKW
 

gcc/config/ptx4.h

@@ -180,10 +180,6 @@ Boston, MA 02111-1307, USA.
 			%{!ansi:values-Xa.o%s} \
  			crtbegin.o%s"
 
-/* Allow #sccs in preprocessor.  */
-
-#define SCCS_DIRECTIVE
-
 /* Don't use bcopy, which doesn't handle overlaps before DYNIX/ptx 4.6. */
 
 #undef HAVE_BCOPY

gcc/config/sparc/pbd.h

@@ -59,10 +59,6 @@ Boston, MA 02111-1307, USA.  */
 
 #define ENDFILE_SPEC "crtn.o%s"
 
-/* cpp has to support a #sccs directive for the /usr/include files */
-
-#define SCCS_DIRECTIVE
-
 /* LINK_SPEC is needed only for SunOS 4.  */
 
 #undef LINK_SPEC

gcc/config/stormy16/stormy16.h

@@ -3923,12 +3923,6 @@ do {									\
    should be used on RISC machines.  */
 /* #define INTEGRATE_THRESHOLD(DECL) */
 
-/* Define this if the preprocessor should ignore `#sccs' directives and print
-   no error message.
-
-   Defined in svr4.h.  */
-/* #define SCCS_DIRECTIVE */
-
 /* Define this macro if the system header files support C++ as well as C.  This
    macro inhibits the usual method of using system header files in C++, which
    is to pretend that the file's contents are enclosed in `extern "C" {...}'.  */

gcc/config/svr3.h

@@ -113,10 +113,6 @@ Boston, MA 02111-1307, USA.
 #define LINK_SPEC "%{T*} %{z:-lm}"
 #endif
 
-/* Allow #sccs in preprocessor.  */
-
-#define SCCS_DIRECTIVE
-
 /* Output #ident as a .ident.  */
 
 #undef  ASM_OUTPUT_IDENT

gcc/config/svr4.h

@@ -192,10 +192,6 @@ Boston, MA 02111-1307, USA.
 			%{!ansi:values-Xa.o%s} \
  			crtbegin.o%s"
 
-/* Allow #sccs in preprocessor.  */
-
-#define SCCS_DIRECTIVE
-
 /* The numbers used to denote specific machine registers in the System V
    Release 4 DWARF debugging information are quite likely to be totally
    different from the numbers used in BSD stabs debugging information

gcc/config/vax/vaxv.h

@@ -18,10 +18,6 @@ along with GNU CC; see the file COPYING.  If not, write to
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
-/* Cope with these under SysV */
-
-#define SCCS_DIRECTIVE
-
 #define TARGET_OS_CPP_BUILTINS()		\
   do						\
     {						\

gcc/cpplib.c

@@ -162,14 +162,7 @@ D(ident,	T_IDENT,	EXTENSION, IN_I)	   /*     11 */ \
 D(import,	T_IMPORT,	EXTENSION, INCL | EXPAND)  /* 0 ObjC */	\
 D(assert,	T_ASSERT,	EXTENSION, 0)		   /* 0 SVR4 */	\
 D(unassert,	T_UNASSERT,	EXTENSION, 0)		   /* 0 SVR4 */	\
-SCCS_ENTRY						   /* 0 SVR4? */
-
-/* #sccs is not always recognized.  */
-#ifdef SCCS_DIRECTIVE
-# define SCCS_ENTRY D(sccs, T_SCCS, EXTENSION, 0)
-#else
-# define SCCS_ENTRY /* nothing */
-#endif
+D(sccs,		T_SCCS,		EXTENSION, 0)		   /* 0 SVR4? */
 
 /* Use the table to generate a series of prototypes, an enum for the
    directive names, and an array of directive handlers.  */
@@ -1319,14 +1312,12 @@ _cpp_do__Pragma (pfile)
     }
 }
 
-/* Just ignore #sccs, on systems where we define it at all.  */
-#ifdef SCCS_DIRECTIVE
+/* Just ignore #sccs on all systems.  */
 static void
 do_sccs (pfile)
      cpp_reader *pfile ATTRIBUTE_UNUSED;
 {
 }
-#endif
 
 /* Handle #ifdef.  */
 static void

gcc/doc/cpp.texi

@@ -3252,8 +3252,8 @@ This directive is not part of the C standard, but it is not an official
 GNU extension either.  We believe it came from System V@.
 
 @findex #sccs
-The @samp{#sccs} directive is recognized on some systems, because it
-appears in their header files.  It is a very old, obscure, extension
+The @samp{#sccs} directive is recognized, because it appears in the
+header files of some systems.  It is a very old, obscure, extension
 which we did not invent, and we have been unable to find any
 documentation of what it should do, so GCC simply ignores it.
 

gcc/doc/tm.texi

@@ -8584,11 +8584,6 @@ Defining @code{STDC_0_IN_SYSTEM_HEADERS} makes GNU CPP follows the host
 convention when processing system header files, but when processing user
 files @code{__STDC__} will always expand to 1.
 
-@findex SCCS_DIRECTIVE
-@item SCCS_DIRECTIVE
-Define this if the preprocessor should ignore @code{#sccs} directives
-and print no error message.
-
 @findex NO_IMPLICIT_EXTERN_C
 @item NO_IMPLICIT_EXTERN_C
 Define this macro if the system header files support C++ as well as C@.

gcc/system.h

@@ -620,7 +620,7 @@ typedef char _Bool;
 	NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
 	BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER	   \
 	FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE			   \
-	MACHINE_STATE_RESTORE
+	MACHINE_STATE_RESTORE SCCS_DIRECTIVE
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\