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Define CMAKE_SYSTEM_NAME on a cross build targeting DragonFly. #113996

Merged

bors merged 1 commit into rust-lang:master from inferiorhumanorgans:dragonfly-cmake-system-name

Jul 26, 2023

Commits on Jul 25, 2023

bootstrap: Define CMake platform if DragonFly.

CMAKE_SYSTEM_NAME is defined on a cross build if the target is
recognized.  Without this explicit definition cmake will assume that
we're building for the host platform which can bring in unwanted
compiler and linker flags.

Also, add a warning on cross builds with unknown target to aid in
cross builds for future platforms.

Alex Zepeda committed Jul 25, 2023