diff --git a/Makefile.am b/Makefile.am
index dadf13a0..eb08990a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -30,6 +30,9 @@ AM_CFLAGS += -Wwrite-strings -Wshadow -Wpointer-arith -Wsign-compare
 AM_CFLAGS += -Wundef -Wbad-function-cast -Winline -Wcast-align
 AM_CFLAGS += -Wdeclaration-after-statement -Wno-pointer-sign -Wno-attributes
 AM_CFLAGS += -Wno-unused-result -Wno-format-y2k
+if IS_DARWIN
+AM_CFLAGS += -Wno-deprecated-declarations -Wno-cast-align
+endif
 AM_CPPFLAGS += -DDEBUG
 endif
 AM_CPPFLAGS += -iquote.