diff --git a/gcc/config/m88k/x-sysv4 b/gcc/config/m88k/x-sysv4
new file mode 100644
index 000000000000..e22a68803624
--- /dev/null
+++ b/gcc/config/m88k/x-sysv4
@@ -0,0 +1,12 @@
+INSTALL = cp
+
+# Problems in early version of the assembler have been fixed (-DNO_BUGS).
+# There are peculiar problems with the include files that require __STDC__
+# to be defined as 0.  This results in sigset_t being defined which otherwise
+# results in a problem when <wait.h> includes <siginfo.h>.
+
+X_CFLAGS = -DNO_BUGS -D__STDC__=0
+
+# The CI5 compiler does not provide alloca.
+
+ALLOCA = alloca.o