[llvm] 6ce341d - [libc] Forward LLVM_LIBC options when using a runtimes build

[Joseph Huber via llvm-commits]

Author: Joseph Huber
Date: 2022-11-14T16:23:56-06:00
New Revision: 6ce341de249c3858802a6f5b1559b2d143b0667d

URL: https://github.com/llvm/llvm-project/commit/6ce341de249c3858802a6f5b1559b2d143b0667d
DIFF: https://github.com/llvm/llvm-project/commit/6ce341de249c3858802a6f5b1559b2d143b0667d.diff

LOG: [libc] Forward LLVM_LIBC options when using a runtimes build

The `LLVM_ENABLE_RUNTIMES' mode is commonly used to build runtimes that
depend on an up-to-date version of clang. Currently, `libc` uses some
internal variables that are not forwarded when building in this mode.
This patch forwards the relevent arguments beginning with `LLVM_LIBC` to
the build when built this way.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D137977

Added: 
    

Modified: 
    llvm/runtimes/CMakeLists.txt

Removed: 
    


################################################################################
diff  --git a/llvm/runtimes/CMakeLists.txt b/llvm/runtimes/CMakeLists.txt
index facbecc5d34ad..2c02a7ca843ba 100644
--- a/llvm/runtimes/CMakeLists.txt
+++ b/llvm/runtimes/CMakeLists.txt
@@ -178,6 +178,9 @@ foreach(entry ${runtimes})
   if(canon_name STREQUAL "COMPILER_RT")
     list(APPEND prefixes SANITIZER DARWIN)
   endif()
+  if(canon_name STREQUAL "LLVMLIBC")
+    list(APPEND prefixes "LLVM_LIBC")
+  endif()
 
   string(FIND ${projName} "lib" LIB_IDX)
   if(LIB_IDX EQUAL 0)