--- a/configure.in
+++ b/configure.in
@@ -4601,17 +4601,16 @@ if test -n "$MOZ_ANGLE_RENDERER" -a -z "
   fi
 
   MOZ_D3DCOMPILER_CAB=`find "$MOZ_DIRECTX_SDK_PATH"/Redist -name *D3DCompiler_${MOZ_D3DX9_VERSION}_${MOZ_DIRECTX_SDK_CPU_SUFFIX}.cab | head -n1`
 
   if test -z "$MOZ_D3DCOMPILER_CAB"; then
     AC_MSG_ERROR([Couldn't find the DirectX redistributable files. Either reinstall the DirectX SDK (making sure the "DirectX Redistributable Files" option is selected), or reconfigure with --disable-webgl.])
   fi
 
-  MOZ_D3DX9_DLL=d3dx9_$MOZ_D3DX9_VERSION.dll
   MOZ_D3DCOMPILER_DLL=D3DCompiler_$MOZ_D3DX9_VERSION.dll
 fi
 
 dnl ========================================================
 dnl = Breakpad crash reporting (on by default on supported platforms)
 dnl ========================================================
 
 case $target in

--- a/mail/installer/Makefile.in
+++ b/mail/installer/Makefile.in
@@ -36,17 +36,16 @@ endif
 ifdef _MSC_VER
 DEFINES += -D_MSC_VER=$(_MSC_VER)
 endif
 
 DEFINES += -DJAREXT=
 
 ifdef MOZ_ANGLE_RENDERER
 DEFINES += -DMOZ_ANGLE_RENDERER=$(MOZ_ANGLE_RENDERER)
-DEFINES += -DMOZ_D3DX9_DLL=$(MOZ_D3DX9_DLL)
 DEFINES += -DMOZ_D3DCOMPILER_DLL=$(MOZ_D3DCOMPILER_DLL)
 endif
 
 ifdef MOZ_UPDATER
 DEFINES += -DMOZ_UPDATER=1
 endif
 
 include $(MOZILLA_SRCDIR)/ipc/app/defs.mk

--- a/mail/installer/package-manifest.in
+++ b/mail/installer/package-manifest.in
@@ -88,17 +88,16 @@
 @BINPATH@/@DLL_PREFIX@plugin_child_interpose@DLL_SUFFIX@
 #else
 @BINPATH@/@MOZ_CHILD_PROCESS_NAME@
 #endif
 ; ANGLE GLES-on-D3D rendering library
 #ifdef MOZ_ANGLE_RENDERER
 @BINPATH@/libEGL.dll
 @BINPATH@/libGLESv2.dll
-@BINPATH@/@MOZ_D3DX9_DLL@
 @BINPATH@/@MOZ_D3DCOMPILER_DLL@
 #endif
 
 ; Modules
 @BINPATH@/modules/*
 
 ; Optional RSS extension
 [newsblog]

--- a/mail/installer/removed-files.in
+++ b/mail/installer/removed-files.in
@@ -114,16 +114,17 @@ components/@DLL_PREFIX@xpinstal@DLL_SUFF
 components/@DLL_PREFIX@xpinstall@DLL_SUFFIX@
 components/xpti.dat
 components/xptitemp.dat
 components/myspell/en-US.dic
 components/myspell/en-US.aff
 components/myspell/
 D3DCompiler_42.dll
 d3dx9_42.dll
+d3dx9_43.dll
 defaults/isp/dotmac.rdf
 defaults/isp/movemail.rdf
 defaults/isp/rss.rdf
 defaults/isp/en-US/dotmac.rdf
 defaults/isp/en-US/movemail.rdf
 defaults/isp/en-US/rss.rdf
 defaults/isp/en-US/
 defaults/isp/US/movemail.rdf