diff --git a/lisp/Config.sgi_52 b/lisp/Config.sgi_52
index 9915618229cb114a00aa0864e631de17bcd842a9..4a70af8f1e55ecf80e8ee339ee3c99591ea3b9dc 100644
--- a/lisp/Config.sgi_52
+++ b/lisp/Config.sgi_52
@@ -1,7 +1,10 @@
-CPPFLAGS = -I. -I/usr/misc/.X11/include -Dirix
+# To make the Depends file temporarily change Config to use gcc instead of cc.
+# For some reason mips-assem.S and mips-assem.s must be linked to the
+# mips-assem.S source file.
+CPPFLAGS = -I. -Dirix -DSVR4
 CC = cc # -Wall -Wstrict-prototypes -Wmissing-prototypes
 CPP = cpp
-CFLAGS = -Dirix -D_BSD_SIGNALS -non_shared -g
+CFLAGS = -Dirix -DSVR4 -D_BSD_SIGNALS -non_shared -g
 ASFLAGS = -g -Dirix -non_shared
 NM = irix-nm
 UNDEFSYMPATTERN=-Xlinker -u -Xlinker &