[libcxx-commits] [clang] [libc] [libcxx] [libc][libcxx] Support for building libc++ against LLVM libc (PR #99287)

[Petr Hosek via libcxx-commits]

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@@ -226,6 +226,15 @@ set(LIBCXX_ABI_DEFINES "" CACHE STRING "A semicolon separated list of ABI macros
 set(LIBCXX_EXTRA_SITE_DEFINES "" CACHE STRING "Extra defines to add into __config_site")
 option(LIBCXX_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF)
 
+# C Library options -----------------------------------------------------------
+
+set(LIBCXX_DEFAULT_C_LIBRARY system)
+set(LIBCXX_SUPPORTED_C_LIBRARIES system llvm-libc)
+set(LIBCXX_LIBC "${LIBCXX_DEFAULT_C_LIBRARY}" CACHE STRING "Specify C library to use. Supported values are ${LIBCXX_SUPPORTED_C_LIBRARIES}.")
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petrhosek wrote:

Done.

https://github.com/llvm/llvm-project/pull/99287