Fix PR3165

Fix PR3165

[Alan Modra]

Stops complaints from SGI cc that --4 is not an lvalue.

	PR gas/3165
	* config/tc-mips.h (enum dwarf2_format): Forward declare.
	(DWARF2_CIE_DATA_ALIGNMENT): Wrap negative number in parens.
	* config/tc-alpha.h (DWARF2_CIE_DATA_ALIGNMENT): Likewise.
	* config/tc-arm.h (DWARF2_CIE_DATA_ALIGNMENT): Likewise.

Index: gas/config/tc-alpha.h
===================================================================
RCS file: /cvs/src/src/gas/config/tc-alpha.h,v
retrieving revision 1.25
diff -u -p -r1.25 tc-alpha.h
--- gas/config/tc-alpha.h	7 Jun 2005 17:54:15 -0000	1.25
+++ gas/config/tc-alpha.h	11 Sep 2006 01:27:04 -0000
@@ -1,6 +1,6 @@
 /* This file is tc-alpha.h
    Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
-   2005
+   2005, 2006
    Free Software Foundation, Inc.
    Written by Ken Raeburn <raeburn@cygnus.com>.
 
@@ -180,4 +180,4 @@ extern void alpha_cfi_frame_initial_inst
 
 #define DWARF2_LINE_MIN_INSN_LENGTH	4
 #define DWARF2_DEFAULT_RETURN_COLUMN	26
-#define DWARF2_CIE_DATA_ALIGNMENT	-8
+#define DWARF2_CIE_DATA_ALIGNMENT	(-8)
Index: gas/config/tc-arm.h
===================================================================
RCS file: /cvs/src/src/gas/config/tc-arm.h,v
retrieving revision 1.40
diff -u -p -r1.40 tc-arm.h
--- gas/config/tc-arm.h	21 Aug 2006 08:12:46 -0000	1.40
+++ gas/config/tc-arm.h	11 Sep 2006 01:27:04 -0000
@@ -1,6 +1,6 @@
 /* This file is tc-arm.h
    Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-   2004 Free Software Foundation, Inc.
+   2004, 2005, 2006 Free Software Foundation, Inc.
    Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
 	Modified by David Taylor (dtaylor@armltd.co.uk)
 
@@ -183,7 +183,7 @@ extern void arm_md_end (void);
 #define DWARF2_DEFAULT_RETURN_COLUMN  14
 
 /* Registers are generally saved at negative offsets to the CFA.  */
-#define DWARF2_CIE_DATA_ALIGNMENT     -4
+#define DWARF2_CIE_DATA_ALIGNMENT     (-4)
 
 #ifdef OBJ_ELF
 # define obj_frob_symbol(sym, punt)	armelf_frob_symbol ((sym), & (punt))
Index: gas/config/tc-mips.h
===================================================================
RCS file: /cvs/src/src/gas/config/tc-mips.h,v
retrieving revision 1.45
diff -u -p -r1.45 tc-mips.h
--- gas/config/tc-mips.h	23 Jun 2006 16:26:13 -0000	1.45
+++ gas/config/tc-mips.h	11 Sep 2006 01:27:04 -0000
@@ -1,6 +1,6 @@
 /* tc-mips.h -- header file for tc-mips.c.
-   Copyright 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004
-   Free Software Foundation, Inc.
+   Copyright 1993, 1994, 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004,
+   2005, 2006 Free Software Foundation, Inc.
    Contributed by the OSF and Ralph Campbell.
    Written by Keith Knowles and Ralph Campbell, working independently.
    Modified for ECOFF support by Ian Lance Taylor of Cygnus Support.
@@ -152,6 +152,7 @@ extern void mips_emit_delays (void);
 extern void mips_enable_auto_align (void);
 #define md_elf_section_change_hook()	mips_enable_auto_align()
 
+enum dwarf2_format;
 extern enum dwarf2_format mips_dwarf2_format (void);
 #define DWARF2_FORMAT() mips_dwarf2_format ()
 
@@ -167,6 +168,6 @@ extern void mips_cfi_frame_initial_instr
 extern int tc_mips_regname_to_dw2regnum (char *regname);
 
 #define DWARF2_DEFAULT_RETURN_COLUMN 31
-#define DWARF2_CIE_DATA_ALIGNMENT -4
+#define DWARF2_CIE_DATA_ALIGNMENT (-4)
 
 #endif /* TC_MIPS */
Index: gas/config/tc-sh.h
===================================================================
RCS file: /cvs/src/src/gas/config/tc-sh.h,v
retrieving revision 1.43
diff -u -p -r1.43 tc-sh.h
--- gas/config/tc-sh.h	4 Aug 2006 13:13:56 -0000	1.43
+++ gas/config/tc-sh.h	11 Sep 2006 01:27:07 -0000
@@ -1,6 +1,6 @@
 /* This file is tc-sh.h
    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-   2003, 2004, 2005 Free Software Foundation, Inc.
+   2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
@@ -232,6 +232,6 @@ extern int sh_regname_to_dw2regnum (char
 /* All SH instructions are multiples of 16 bits.  */
 #define DWARF2_LINE_MIN_INSN_LENGTH 2
 #define DWARF2_DEFAULT_RETURN_COLUMN 17
-#define DWARF2_CIE_DATA_ALIGNMENT -4
+#define DWARF2_CIE_DATA_ALIGNMENT (-4)
 
 #endif /* OBJ_ELF */

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre