================
@@ -150,12 +150,18 @@ if ("flang" IN_LIST LLVM_ENABLE_PROJECTS)
endif()
endif()
+if ("flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES)
+ if (NOT "flang" IN_LIST LLVM_ENABLE_PROJECTS)
+ message(FATAL_ERROR "Flang is not enabled, but is required for the
Flang-RT runtime")
+ endif ()
+endif ()
----------------
Meinersbur wrote:
@h-vetinari Addressed here:
https://github.com/llvm/llvm-project/blob/4299d1e131df65edc4a9e8489fec8322e9f426e7/flang-rt/README.md#runtime-onlyout-of-tree-build
@jhuber6 There is one Fortran file (`flang/module/iso_fortran_env_impl.f90`,
see #95388) that is compiled into an object file which is added to the runtime
library. That file is actually a workaround for a symbol that depends on flang
switches (`NUMERIC_STORAGE_SIZE`), but in principle there is no reason why
(parts) of the runtime should not be implemented in Fortran, just like libc++
or even libc/compiler-rt is written in C++.
https://github.com/llvm/llvm-project/pull/110217
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