--- gcc/config/mips/news5.h	2018/04/24 18:10:25	1.1
+++ gcc/config/mips/news5.h	2018/04/24 18:15:54	1.1.1.2
@@ -19,7 +19,9 @@ the Free Software Foundation, 675 Mass A
 
 #define MIPS_SYSV
 
-#define CPP_PREDEFINES "-Dmips -Dunix -Dhost_mips -Dsony -Dsonyrisc -DMIPSEB -DSYSTYPE_SYSV"
+#define CPP_PREDEFINES "\
+-Dmips -Dunix -Dhost_mips -Dsony -Dsonyrisc -DMIPSEB -DSYSTYPE_SYSV \
+-Asystem(unix) -Asystem(svr3) -Acpu(mips) -Amachine(mips)"
 
 #define MD_STARTFILE_PREFIX "/usr/ccs/lib/"
 
@@ -29,7 +31,8 @@ the Free Software Foundation, 675 Mass A
 %{.C:	-D__LANGUAGE_C_PLUS_PLUS -D_LANGUAGE_C_PLUS_PLUS} \
 %{.m:	-D__LANGUAGE_OBJECTIVE_C -D_LANGUAGE_OBJECTIVE_C} \
 %{.S:	-D__LANGUAGE_ASSEMBLY -D_LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \
-%{!.S:	-D__LANGUAGE_C -D_LANGUAGE_C %{!ansi:-DLANGUAGE_C}}"
+%{.s:	-D__LANGUAGE_ASSEMBLY -D_LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \
+%{!.S:%{!.s:	-D__LANGUAGE_C -D_LANGUAGE_C %{!ansi:-DLANGUAGE_C}}}"
 
 #define LINK_SPEC "\
 %{G*} \