Skip to content

fix(react-native): disable fmt consteval for Xcode 26.4 builds #275

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
Kristopher Johnson (kristopherjohnson) wants to merge 1 commit into
base: main
Choose a base branch
from
+15 −0
Open

fix(react-native): disable fmt consteval for Xcode 26.4 builds #275

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 15 additions & 0 deletions react-native/ios/Podfile
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -31,5 +31,20 @@ target 'DittoReactNativeSampleApp' do
:mac_catalyst_enabled => false,
# :ccache_enabled => true
)

# Workaround for fmt 11.x consteval incompatibility with Xcode 26.4 clang.
# Compile the fmt pod as C++17 so __cpp_consteval is not defined, which
# forces fmt to skip the consteval FMT_STRING code path entirely and fall
# back to runtime format-string validation. Scoped to the fmt target only —
# RCT-Folly, React-Core, and the rest of RN keep their C++20 settings.
# See: https://github.com/fmtlib/fmt/issues/4740 and SDKS-3242.
# Remove when React Native upgrades to a build that bundles fmt >= 11.1.
installer.pods_project.targets.each do |target|
if target.name == 'fmt'
target.build_configurations.each do |cfg|
cfg.build_settings['CLANG_CXX_LANGUAGE_STANDARD'] = 'c++17'
end
end
end
end
end
Loading