diff --git a/mozilla/lib/libi18n/cns2b5.c b/mozilla/lib/libi18n/cns2b5.c
index d17ca6c18fd..fb91a5464be 100644
--- a/mozilla/lib/libi18n/cns2b5.c
+++ b/mozilla/lib/libi18n/cns2b5.c
@@ -20,4 +20,8 @@
 
 #ifdef FEATURE_BIG5CNS
 #include "cns2b5.i00"
+#else
+#ifdef OSF1
+static int dumbcc = 0;  /* The 3.2 compiler aborts when there's "nothing to compile", and 4.0 warns.  This fixes both problems. */
+#endif
 #endif 
diff --git a/mozilla/lib/libi18n/katakana.c b/mozilla/lib/libi18n/katakana.c
index 7294beb7abc..500b74edb62 100644
--- a/mozilla/lib/libi18n/katakana.c
+++ b/mozilla/lib/libi18n/katakana.c
@@ -149,4 +149,8 @@ MODULE_PRIVATE XP_Bool INTL_GetSendHankakuKana()
 	return send_hankaku_kana;
 }
 
+#else
+#ifdef OSF1
+static int dumbcc = 0;  /* The 3.2 compiler aborts when there's "nothing to compile", and 4.0 warns.  This fixes both problems. */
+#endif
 #endif /* MOZ_MAIL_NEWS */
diff --git a/mozilla/lib/libmocha/lm_hardw.c b/mozilla/lib/libmocha/lm_hardw.c
index 7551692e1c9..a2b883a89d3 100644
--- a/mozilla/lib/libmocha/lm_hardw.c
+++ b/mozilla/lib/libmocha/lm_hardw.c
@@ -152,4 +152,8 @@ lm_DefineHardware(MochaDecoder *decoder, JSObject *parent)
         decoder->hardware = obj;
     return obj;
 }
+#else
+#ifdef OSF1
+static int dumbcc = 0;  /* The 3.2 compiler aborts when there's "nothing to compile", and 4.0 warns.  This fixes both problems. */
+#endif
 #endif