diff -Naur gstreamer-1.14.5.old/common/glib-gen.mak gstreamer-1.14.5/common/glib-gen.mak
--- gstreamer-1.14.5.old/common/glib-gen.mak	2018-03-23 20:44:39.000000000 -0000
+++ gstreamer-1.14.5/common/glib-gen.mak	2020-01-25 01:43:33.857056864 -0000
@@ -1,11 +1,13 @@
 # these are the variables your Makefile.am should set
 # the example is based on the colorbalance interface
 
+H := \#
+
 #glib_enum_headers=$(colorbalance_headers)
 #glib_enum_define=GST_COLOR_BALANCE
 #glib_enum_prefix=gst_color_balance
 
-enum_headers=$(foreach h,$(glib_enum_headers),\n\#include \"$(h)\")
+enum_headers=$(foreach h,$(glib_enum_headers),\n$(H)include \"$(h)\")
 
 # these are all the rules generating the relevant files
 %-marshal.h: %-marshal.list
diff -Naur gstreamer-1.14.5.old/common/gst-glib-gen.mak gstreamer-1.14.5/common/gst-glib-gen.mak
--- gstreamer-1.14.5.old/common/gst-glib-gen.mak	2018-03-23 20:44:39.000000000 -0000
+++ gstreamer-1.14.5/common/gst-glib-gen.mak	2020-01-25 01:44:18.698052973 -0000
@@ -1,14 +1,16 @@
 # these are the variables your Makefile.am should set
 # the example is based on the colorbalance interface
 
+H := \#
+
 #glib_enum_headers=$(colorbalance_headers)
 #glib_enum_define=GST_COLOR_BALANCE
 #glib_gen_prefix=gst_color_balance
 #glib_gen_basename=colorbalance
 #glib_gen_decl_banner=GST_EXPORT
-#glib_gen_decl_include=\#include <gst/foo/foo-prelude.h>
+#glib_gen_decl_include=$(H)include <gst/foo/foo-prelude.h>
 
-enum_headers=$(foreach h,$(glib_enum_headers),\n\#include \"$(h)\")
+enum_headers=$(foreach h,$(glib_enum_headers),\n$(H)include \"$(h)\")
 
 # these are all the rules generating the relevant files
 $(glib_gen_basename)-marshal.h: $(glib_gen_basename)-marshal.list
diff -Naur gstreamer-1.14.5.old/libs/gst/controller/Makefile.am gstreamer-1.14.5/libs/gst/controller/Makefile.am
--- gstreamer-1.14.5.old/libs/gst/controller/Makefile.am	2018-03-23 20:44:36.000000000 -0000
+++ gstreamer-1.14.5/libs/gst/controller/Makefile.am	2020-01-25 01:45:03.465049088 -0000
@@ -4,11 +4,13 @@
 	gstinterpolationcontrolsource.h \
 	gstlfocontrolsource.h
 
+H := \#
+
 glib_enum_define = GST_CONTROLLER
 glib_gen_prefix = gst
 glib_gen_basename = controller
 glib_gen_decl_banner=GST_CONTROLLER_API
-glib_gen_decl_include=\#include <gst/controller/controller-prelude.h>
+glib_gen_decl_include=$(H)include <gst/controller/controller-prelude.h>
 
 built_sources = controller-enumtypes.c
 built_headers = controller-enumtypes.h