diff -Nru wine-development-4.2/debian/changelog wine-development-4.2/debian/changelog
--- wine-development-4.2/debian/changelog	2019-02-16 00:17:09.000000000 +0000
+++ wine-development-4.2/debian/changelog	2019-02-16 04:21:53.000000000 +0000
@@ -1,3 +1,9 @@
+wine-development (4.2-2) unstable; urgency=medium
+
+  * Ignore unused function warnings on all architectures.
+
+ -- Michael Gilbert <mgilbert@debian.org>  Sat, 16 Feb 2019 04:21:53 +0000
+
 wine-development (4.2-1) unstable; urgency=medium
 
   * New upstream release 4.2, released Feb 15, 2019.
diff -Nru wine-development-4.2/debian/rules wine-development-4.2/debian/rules
--- wine-development-4.2/debian/rules	2019-02-16 00:17:05.000000000 +0000
+++ wine-development-4.2/debian/rules	2019-02-16 04:21:53.000000000 +0000
@@ -41,8 +41,11 @@
 # ignore shift overflow warnings (currently only an issue on arm)
 export DEB_CFLAGS_MAINT_APPEND+=-Wno-shift-overflow
 
+# ignore all defined but unused function warnings
+export DEB_CFLAGS_MAINT_APPEND+=-Wno-unused-function
+
 # ignore warning about deprecated CUPS API for now
-export DEB_CFLAGS_MAINT_APPEND+=-Wno-deprecated-declarations
+export DEB_CFLAGS_MAINT_APPEND+=-Wno-deprecated -Wno-deprecated-declarations
 
 # configure options
 CONFLAGS=--with-gnutls \
@@ -83,7 +86,7 @@
 ifeq ($(DEB_HOST_ARCH), arm64)
 export CC=clang
 export CXX=clang++
-export DEB_CFLAGS_MAINT_APPEND+=-Wno-enum-conversion -Wno-absolute-value -Wno-unused-function
+export DEB_CFLAGS_MAINT_APPEND+=-Wno-enum-conversion -Wno-absolute-value
 endif
 
 # use date of the latest changelog update as the build date