[libc++] Correct libcxx default linker script behavior (#74130)
Patch 4b1fe097f9a3882f437bc3b829ef02331e28a8d6 introduced a bug when
building libc++ for Fuchsia, it disabled the libc++.so linker script by
default. This patch restores its original behavior.
diff --git a/libcxx/CMakeLists.txt b/libcxx/CMakeLists.txt
index 8572e753..31fc9ce 100644
--- a/libcxx/CMakeLists.txt
+++ b/libcxx/CMakeLists.txt
@@ -251,14 +251,14 @@
# Generate and install a linker script inplace of libc++.so. The linker script
# will link libc++ to the correct ABI library. This option is on by default
-# on UNIX platforms other than Apple unless we statically link libc++abi
-# inside libc++.so, we don't build libc++.so at all or we don't have any
-# ABI library.
+# on UNIX platforms other than Apple, and on the Fuchsia platform unless we
+# statically link libc++abi inside libc++.so, we don't build libc++.so at all
+# or we don't have any ABI library.
if (LIBCXX_STATICALLY_LINK_ABI_IN_SHARED_LIBRARY
OR NOT LIBCXX_ENABLE_SHARED
OR LIBCXX_CXX_ABI STREQUAL "none")
set(ENABLE_LINKER_SCRIPT_DEFAULT_VALUE OFF)
-elseif(UNIX AND NOT APPLE)
+elseif((UNIX OR FUCHSIA) AND NOT APPLE)
set(ENABLE_LINKER_SCRIPT_DEFAULT_VALUE ON)
else()
set(ENABLE_LINKER_SCRIPT_DEFAULT_VALUE OFF)
