Bug 9145: Tor Browser for Windows is broken with hardware acceleration

We now build with -DWIDL_EXPLICIT_AGGREGATE_RETURNS on Windows to fix
this issue; see https://bugzilla.mozilla.org/show_bug.cgi?id=1411401 for
more information.

projects/firefox/mozconfig-windows-i686

 CROSS_COMPILE=1
 
+# https://bugzilla.mozilla.org/show_bug.cgi?id=1411401
+export CXXFLAGS="-DWIDL_EXPLICIT_AGGREGATE_RETURNS"
+
 ac_add_options --enable-application=browser
 ac_add_options --target=i686-w64-mingw32
 ac_add_options --with-toolchain-prefix=i686-w64-mingw32-

projects/firefox/mozconfig-windows-x86_64

 CROSS_COMPILE=1
 
+# https://bugzilla.mozilla.org/show_bug.cgi?id=1411401
+export CXXFLAGS="-DWIDL_EXPLICIT_AGGREGATE_RETURNS"
+
 ac_add_options --enable-application=browser
 ac_add_options --target=x86_64-w64-mingw32
 ac_add_options --with-toolchain-prefix=x86_64-w64-mingw32-