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The try-compile mechanism requires that `CMAKE_REQUIRED_FLAGS` is a
space-separated string instead of a list of flags. The original code
expanded `BUILTIN_FLAGS` into `CMAKE_REQUIRED_FLAGS` as a
space-separated string and then would overwrite `CMAKE_REQUIRED_FLAGS`
with `TARGET_${arch}_CFLAGS` prepended to the unexpanded
`BUILTIN_CFLAGS_${arch}`. This resulted in the first two arguments being
passed into the try-compile invocation, but dropping the other arguments
listed in `BUILTIN_CFLAGS_${arch}`.
This patch appends `TARGET_${arch}_CFLAGS` and `BUILTIN_CFLAGS_${arch}` to
`CMAKE_REQUIRED_FLAGS` before expanding CMAKE_REQUIRED_FLAGS as a
space-separated string. This passes any pre-set required flags, in addition to
all of the builtin and target flags to the Float16 detection.
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================