diff --git a/compiler/Makefile b/compiler/Makefile
index dc3c3e0db4..0e15ca5441 100644
--- a/compiler/Makefile
+++ b/compiler/Makefile
@@ -441,6 +441,7 @@ CPUSUF=386
 endif
 ifeq ($(CPC_TARGET),m68k)
 CPUSUF=68k
+ALLOW_WARNINGS=1
 endif
 ifeq ($(CPC_TARGET),powerpc)
 CPUSUF=ppc
@@ -465,6 +466,7 @@ CPUSUF=mipsel
 endif
 ifeq ($(CPC_TARGET),avr)
 CPUSUF=avr
+ALLOW_WARNINGS=1
 endif
 ifeq ($(CPC_TARGET),jvm)
 CPUSUF=jvm
diff --git a/compiler/Makefile.fpc b/compiler/Makefile.fpc
index eb5c156829..b9e7881088 100644
--- a/compiler/Makefile.fpc
+++ b/compiler/Makefile.fpc
@@ -171,6 +171,7 @@ CPUSUF=386
 endif
 ifeq ($(CPC_TARGET),m68k)
 CPUSUF=68k
+ALLOW_WARNINGS=1
 endif
 ifeq ($(CPC_TARGET),powerpc)
 CPUSUF=ppc
@@ -195,6 +196,7 @@ CPUSUF=mipsel
 endif
 ifeq ($(CPC_TARGET),avr)
 CPUSUF=avr
+ALLOW_WARNINGS=1
 endif
 ifeq ($(CPC_TARGET),jvm)
 CPUSUF=jvm