diff -u subversion-1.9.3/debian/changelog subversion-1.9.3/debian/changelog
--- subversion-1.9.3/debian/changelog
+++ subversion-1.9.3/debian/changelog
@@ -1,3 +1,9 @@
+subversion (1.9.3-1+rpi1) stretch-staging; urgency=medium
+
+  * Strip warning flags from CCPFLAGS, they break swig.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Fri, 15 Jan 2016 11:04:32 +0000
+
 subversion (1.9.3-1) unstable; urgency=high
 
   * New upstream release.
diff -u subversion-1.9.3/debian/rules subversion-1.9.3/debian/rules
--- subversion-1.9.3/debian/rules
+++ subversion-1.9.3/debian/rules
@@ -74,7 +74,7 @@
 
 export EXTRA_CFLAGS := $(CFLAGS)
 export EXTRA_CXXFLAGS := $(CXXFLAGS)
-export EXTRA_CPPFLAGS := $(CPPFLAGS)
+export EXTRA_CPPFLAGS := $(shell echo $($CPPFLAGS) | sed 's/-W[^ ]*//g')
 export EXTRA_LDFLAGS := $(LDFLAGS)
 export EXTRA_SWIG_LDFLAGS := $(EXTRA_LDFLAGS)
 
only in patch2:
unchanged:
--- subversion-1.9.3.orig/subversion/libsvn_subr/config_keys.inc
+++ subversion-1.9.3/subversion/libsvn_subr/config_keys.inc
@@ -1,4 +1,4 @@
-/* Automatically generated by build/generator/gen_base.pyc:write_config_keys() */
+/* Automatically generated by build/generator/gen_base.py:write_config_keys() */
 
 static const char *svn__valid_config_files[] = {
   SVN_CONFIG_CATEGORY_SERVERS,