--- gcc/config/mips/iris4.h	2018/04/24 18:10:25	1.1
+++ gcc/config/mips/iris4.h	2018/04/24 18:22:13	1.1.1.2
@@ -1,5 +1,5 @@
 /* Definitions of target machine for GNU compiler.  Iris version 4.
-   Copyright (C) 1991 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1993 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -23,11 +23,20 @@ the Free Software Foundation, 675 Mass A
 
 #include "mips/iris3.h"
 
-/* Assembler is said to have trouble with .ascii with escape chars.
-   The quickest way to avoid the problem is not to use .ascii.  */
+/* Profiling is supported via libprof1.a not -lc_p as in Irix 3.  */
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC \
+  "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}"
+
+#undef LIB_SPEC
+#define LIB_SPEC \
+  "%{!p:%{!pg:%{!static:%{!g*:-lc_s}}}}%{p:libprof1.a%s}%{pg:libprof1.a%s} -lc crtn.o%s"
+
+/* Some assemblers have a bug that causes backslash escaped chars in .ascii
+   to be misassembled, so we just completely avoid it.  */
 #undef ASM_OUTPUT_ASCII
 #define ASM_OUTPUT_ASCII(FILE,PTR,LEN)			\
-{							\
+do {							\
   unsigned char *s;					\
   int i;						\
   for (i = 0, s = (unsigned char *)(PTR); i < (LEN); s++, i++)	\
@@ -37,4 +46,4 @@ the Free Software Foundation, 675 Mass A
       fprintf ((FILE), "%s0x%x", (i%8?",":""), (unsigned)*s); \
     }							\
   fputs ("\n", (FILE));					\
-}
+} while (0)