Cross Compile Firefox 84 for Mingw32 on Ubuntu 20

[Ghobad Emadi]

Hello everyone,

I'm trying to cross compile Firefox 85.0.1 on Ubuntu 20 and I get different type of errors in finding some types in .h or .cpp files.

For example,
obj-x86_64-w64-mingw32/dist/include/mozilla/interceptor/MMPolicies.h:25:28: error: unknown type name 'MEM_EXTENDED_PARAMETER'

I found that in the former Firefox versions for example 82.0, this error does not occur.

some other errors are:
mozglue/misc/WindowsProcessMitigations.cpp:69:36: error: use of undeclared identifier 'ProcessPayloadRestrictionPolicy'
ProcessPayloadRestrictionPolicy, &polInfo,

/home/dev/85.0.1/mozilla-release-30fa4718813e735a3b4a0a5135352bfe2a655a8b/mozglue/misc/WindowsProcessMitigations.cpp:74:18: error: no member named 'EnableExportAddressFilterPlus' in '_PROCESS_MITIGATION_DYNAMIC_CODE_POLICY'


My mozeconfig file is like that:

CROSS_COMPILE=1

TOOLTOOL_DIR=/home/dev/85.0.1/mozilla-release-30fa4718813e735a3b4a0a5135352bfe2a655a8b

# MinGW does not have (or need) makecab
unset MAKECAB

RUSTC="${TOOLTOOL_DIR}/rustc/bin/rustc"
CARGO="${TOOLTOOL_DIR}/rustc/bin/cargo"
RUSTFMT="${TOOLTOOL_DIR}/rustc/bin/rustfmt"
CBINDGEN="${TOOLTOOL_DIR}/cbindgen/cbindgen"

mk_add_options AUTOCLOBBER=1

ac_add_options --enable-crashreporter
ac_add_options --enable-js-shell

# MinGW Stuff
ac_add_options --target=x86_64-w64-mingw32
ac_add_options --with-toolchain-prefix=x86_64-w64-mingw32-

ac_add_options --disable-warnings-as-errors
export MOZ_COPY_PDBS=1

# Temporary config settings until we get these working on mingw
ac_add_options --disable-accessibility # https://sourceforge.net/p/mingw-w64/bugs/648/

# These aren't supported on mingw at this time
ac_add_options --disable-webrtc # Bug 1393901
ac_add_options --disable-geckodriver # Bug 1489320
ac_add_options --disable-update-agent # Bug 1561797
ac_add_options --disable-default-browser-agent # WinToast does not build on mingw

# Find our toolchain
HOST_CC="$TOOLTOOL_DIR/clang/bin/clang"
HOST_CXX="$TOOLTOOL_DIR/clang/bin/clang++"
CC="$TOOLTOOL_DIR/clang/bin/x86_64-w64-mingw32-clang"
CXX="$TOOLTOOL_DIR/clang/bin/x86_64-w64-mingw32-clang++"
CXXFLAGS="-fms-extensions -Wno-incompatible-ms-struct"
AR=llvm-ar
RANLIB=llvm-ranlib

BINDGEN_CFLAGS="-I$TOOLTOOL_DIR/clang/x86_64-w64-mingw32/include/c++/v1 -I$TOOLTOOL_DIR/clang/x86_64-w64-mingw32/include"

# We want to make sure we use binutils and other binaries in the tooltool
# package.
mk_add_options "export PATH=$TOOLTOOL_DIR/rustc/bin:$TOOLTOOL_DIR/clang/bin:$TOOLTOOL_DIR/mingw32/bin:$TOOLTOOL_DIR/fxc2/bin:$PATH"

LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}$TOOLTOOL_DIR/mingw32/lib64:$TOOLTOOL_DIR/clang/lib
mk_add_options "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH"

ac_add_options --with-branding=browser/branding/unofficial


and I go through this document in Mozilla website:
https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Build_Instructions/Cross_Compile_Mozilla_for_Mingw32

Thanks in advanced.

[Byron Jones]

Hello,

This newsgroup is no longer active; please use the "#build" room on
Matrix for assistance: https://chat.mozilla.org/#/room/#build:mozilla.org

See https://wiki.mozilla.org/Matrix for more information.


-glob

Ghobad Emadi wrote on 10/2/21 1:22 am:

--
glob — engineering workflow manager — moz://a

[tri...@mozilla.com]

On Tuesday, February 9, 2021 at 5:22:05 PM UTC, emadi....@gmail.com wrote:
> My mozeconfig file is like that:

> ...

> ac_add_options --disable-accessibility # https://sourceforge.net/p/mingw-w64/bugs/648/

This is no longer needed, so your mozconfig is a bit out of date. The most recent one is
https://searchfox.org/mozilla-central/source/browser/config/mozconfigs/win32/mingwclang (x86)
https://searchfox.org/mozilla-central/source/browser/config/mozconfigs/win64/mingwclang (x64)

> and I go through this document in Mozilla website:
> https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Build_Instructions/Cross_Compile_Mozilla_for_Mingw32

I have updated this a little bit. The toolchain links there are for clang 9 and out of date. I've updated them to clang 11.

If you downloaded those toolchains it may explain some of initial errors you got - "error: use of undeclared identifier 'ProcessPayloadRestrictionPolicy' " indicates that the mingw checkout you are using is out of date.

-tom

[tri...@mozilla.com]

On Wednesday, February 10, 2021 at 2:54:40 PM UTC, tri...@mozilla.com wrote:
> I have updated this a little bit. The toolchain links there are for clang 9 and out of date. I've updated them to clang 11.

Actually, I have submitted a pull request to update it: https://github.com/mdn/content/pull/2253/files