================
@@ -223,6 +223,13 @@ endif()
# This can be used to detect whether we're in the runtimes build.
set(LLVM_RUNTIMES_BUILD ON)
+if (LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND UNIX AND ${CMAKE_SYSTEM_NAME}
MATCHES "AIX")
+ # Set LLVM_ENABLE_PER_TARGET_RUNTIME_DIR=OFF as AIX doesn't support it
+ message(WARNING
+ "LLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON is not supported on AIX.
LLVM_ENABLE_PER_TARGET_RUNTIME_DIR is set to OFF.")
+ set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR OFF CACHE BOOL "" FORCE)
+endif()
----------------
DanielCChen wrote:
We consider it as recoverable mis-config. Because the driver and the cmake are
consistent regarding where to search and output the library, users shouldn't be
surprised as the compile/linking/execution should be all working. The only
thing that may surprise users is that if they search for the library and find
out it is not in the `lib/${triple}` path when they have the option ON. For
that, we have the warning message in the build.log to explain why.
My first attempt actually followed what APPLE does: check `if
(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)` at a few places to neglect
the option. I later adopted @arichardson suggestion to put the check at one
central place.
https://github.com/llvm/llvm-project/pull/131200
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