There is build break in gecko/mfbt/tests/TestMaybe.cpp:242 ../../../gecko/mfbt/tests/TestMaybe.cpp: In function 'bool TestBasicFeatures()': ../../../gecko/mfbt/tests/TestMaybe.cpp:242:65: error: template argument 2 is invalid In the directory /home/dannyliang/work/codes/b2g_flatfish_github/objdir-gecko/mfbt/tests The following command failed to execute properly: /usr/bin/ccache /home/dannyliang/work/codes/b2g_flatfish_github/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.6/bin/arm-linux-androideabi-g++ -o TestMaybe.o -c -I../../dist/system_wrappers -include /home/dannyliang/work/codes/b2g_flatfish_github/gecko/config/gcc_hidden_dso_handle.h -DIMPL_MFBT -DAB_CD=en-US -DNO_NSPR_10_SUPPORT -I/home/dannyliang/work/codes/b2g_flatfish_github/gecko/mfbt/tests -I. -I../../dist/include -I/home/dannyliang/work/codes/b2g_flatfish_github/objdir-gecko/dist/include/nspr -I/home/dannyliang/work/codes/b2g_flatfish_github/objdir-gecko/dist/include/nss -I../../dist/include/testing -fPIC -DANDROID -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libc/arch-arm/include -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libc/include/ -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libc/kernel/common -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libc/kernel/arch-arm -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libm/include -I/home/dannyliang/work/codes/b2g_flatfish_github/system -I/home/dannyliang/work/codes/b2g_flatfish_github/system/core/include -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic -I/home/dannyliang/work/codes/b2g_flatfish_github/hardware/libhardware/include -I/home/dannyliang/work/codes/b2g_flatfish_github/external/valgrind/fxos-include -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/native/include -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/av/include -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/av/include/media -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/av/include/camera -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/native/include/media/openmax -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/av/media/libstagefright/include -DMOZILLA_CLIENT -include ../../mozilla-config.h -MD -MP -MF .deps/TestMaybe.o.pp -DANDROID -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libc/arch-arm/include -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libc/include/ -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libc/kernel/common -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libc/kernel/arch-arm -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic/libm/include -I/home/dannyliang/work/codes/b2g_flatfish_github/system -I/home/dannyliang/work/codes/b2g_flatfish_github/system/core/include -isystem /home/dannyliang/work/codes/b2g_flatfish_github/bionic -I/home/dannyliang/work/codes/b2g_flatfish_github/hardware/libhardware/include -I/home/dannyliang/work/codes/b2g_flatfish_github/external/valgrind/fxos-include -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/native/include -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/av/include -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/av/include/media -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/av/include/camera -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/native/include/media/openmax -I/home/dannyliang/work/codes/b2g_flatfish_github/frameworks/av/media/libstagefright/include -Wall -Wpointer-arith -Woverloaded-virtual -Werror=return-type -Werror=int-to-pointer-cast -Werror=type-limits -Wempty-body -Wsign-compare -Wno-invalid-offsetof -mandroid -fno-short-enums -fno-exceptions -Wno-psabi -DMOZ_ENABLE_JS_DUMP -include /home/dannyliang/work/codes/b2g_flatfish_github/gonk-misc/Unicode.h -I/home/dannyliang/work/codes/b2g_flatfish_github/gecko/build/stlport/stlport -I/home/dannyliang/work/codes/b2g_flatfish_github/ndk/sources/cxx-stl/system/include -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=softfp -fno-exceptions -fno-strict-aliasing -fno-rtti -ffunction-sections -fdata-sections -fno-exceptions -fno-math-errno -std=gnu++0x -pipe -DNDEBUG -DTRIMMED -g -freorder-blocks -Os -fno-reorder-functions -funwind-tables /home/dannyliang/work/codes/b2g_flatfish_github/gecko/mfbt/tests/TestMaybe.cpp make[6]: *** [TestMaybe.o] Error 1 make[6]: *** Waiting for unfinished jobs....

SW version: Gecko: 79bcafc2c6846a00ea93693570966b475c03bb60 Gaia: 7e2165cbc81d32188a2a7cf0f4bac6a61c7f42fc

hi Seth， flatfish is contribution program and we don't put it on try-server. It's possible to have some build break due to it's JB 4.2.2 and use 4.6 toolchain. Could you have time to check this build break? You can know how to build flatfish in https://wiki.mozilla.org/FirefoxOS/TCP/Patching and let me know if you need any help. Thanks,