diff --git a/gcc/java/ChangeLog b/gcc/java/ChangeLog
index 88559b9c0f0..1b6bdd26afd 100644
--- a/gcc/java/ChangeLog
+++ b/gcc/java/ChangeLog
@@ -1,3 +1,7 @@
+1999-08-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* Makefile.in (ALL_CFLAGS): Add '-W -Wall'.
+
 1999-07-31  Bernd Schmidt  <bernds@cygnus.co.uk>
 
 	* decl.c: Include "function.h".
diff --git a/gcc/java/Makefile.in b/gcc/java/Makefile.in
index 87a75a7735b..e9d2a078154 100644
--- a/gcc/java/Makefile.in
+++ b/gcc/java/Makefile.in
@@ -143,7 +143,7 @@ all.indirect: Makefile ../jc1$(exeext) ../jcf-dump$(exeext) \
 INTERNAL_CFLAGS = $(CROSS) -DIN_GCC @extra_c_flags@
 
 # This is the variable actually used when we compile.
-ALL_CFLAGS = $(INTERNAL_CFLAGS) $(X_CFLAGS) $(T_CFLAGS) $(CFLAGS) $(XCFLAGS)
+ALL_CFLAGS = $(INTERNAL_CFLAGS) $(X_CFLAGS) $(T_CFLAGS) $(CFLAGS) $(XCFLAGS) -W -Wall
 
 # Likewise.
 ALL_CPPFLAGS = $(CPPFLAGS) $(X_CPPFLAGS) $(T_CPPFLAGS)