Skip to content

Follow-up clang-21 flags for mono #121125

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

Merged
merged 1 commit into from
Oct 27, 2025
Merged

Follow-up clang-21 flags for mono #121125

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
8 changes: 6 additions & 2 deletions src/mono/CMakeLists.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -532,8 +532,12 @@ if(GCC)

# The runtime code does not respect ANSI C strict aliasing rules
append("-fno-strict-aliasing" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
# We rely on signed overflow to behave
append("-fwrapv" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)

# Make signed overflow well-defined. Implies the following flags in clang-20 and above.
# -fwrapv - Make signed arithmetic overflow of addition, subtraction, and multiplication wrap around
# using twos-complement representation (this is normally undefined according to the C++ spec).
# -fwrapv-pointer - The same as -fwrapv but for pointers.
append("-fno-strict-overflow" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)

set(WARNINGS "-Wall -Wunused -Wmissing-declarations -Wpointer-arith -Wno-cast-qual -Wwrite-strings -Wno-switch -Wno-switch-enum -Wno-unused-value -Wno-attributes -Wno-format-zero-length -Wno-unused-function")
set(WARNINGS_C "-Wmissing-prototypes -Wstrict-prototypes -Wnested-externs")
Expand Down