Disable libedit on x86_64-macos

I don't know how to fix the build...

Author: alexcrichton

cmake/wasi-sdk-toolchain.cmake

@@ -5,14 +5,20 @@ set(LLVM_CMAKE_FLAGS "" CACHE STRING "Extra cmake flags to pass to LLVM's build"
 set(RUST_TARGET "" CACHE STRING "Target to build Rust code for, if not the host")
 set(WASI_SDK_ARTIFACT "" CACHE STRING "Name of the wasi-sdk artifact being produced")
 
-set(LLDB_DEFAULT ON)
-# Currently LLDB effectively requires libedit to be usable, and building libedit
-# on Windows isn't easy due to usage of `./configure`. Disable LLDB entirely on
-# Windows for now.
+option(WASI_SDK_LLDB "Include a build of LLDB" ON)
+
+set(LIBEDIT_DEFAULT ON)
+# I don't want to deal with running a `./configure` script on Windows, disable
+# it by default.
 if(WIN32)
-  set(LLDB_DEFAULT OFF)
+  set(LIBEDIT_DEFAULT OFF)
+endif()
+# I don't know how to resolve build failures when building libedit for x86_64
+# from arm64 on macos, so disable it for now.
+if(CMAKE_OSX_ARCHITECTURES MATCHES "x86_64" AND CMAKE_SYSTEM_PROCESSOR MATCHES "arm64")
+  set(LIBEDIT_DEFAULT OFF)
 endif()
-option(LLDB "Include a build of LLDB" ${LLDB_DEFAULT})
+option(WASI_SDK_LIBEDIT "Whether or not to build libedit for LLDB" ${LIBEDIT_DEFAULT})
 
 string(REGEX REPLACE "[ ]+" ";" llvm_cmake_flags_list "${LLVM_CMAKE_FLAGS}")
 
@@ -86,33 +92,7 @@ endif()
 # Note that LLDB depends on `libedit` which is more-or-less required to get a
 # reasonable command-line experience, so this is built custom here to ensure
 # that it's available for LLDB.
-if(LLDB)
-  include(ProcessorCount)
-  ProcessorCount(nproc)
-  find_program(MAKE_EXECUTABLE make REQUIRED)
-
-  ExternalProject_Add(libedit
-    URL https://thrysoee.dk/editline/libedit-20251016-3.1.tar.gz
-    URL_HASH SHA256=21362b00653bbfc1c71f71a7578da66b5b5203559d43134d2dd7719e313ce041
-
-    # Without this the build system tries to find and use `aclocal-1.18` where
-    # with this it doesn't so turn this on.
-    DOWNLOAD_EXTRACT_TIMESTAMP ON
-
-    CONFIGURE_COMMAND
-      <SOURCE_DIR>/configure
-        --prefix=${CMAKE_INSTALL_PREFIX}
-        --enable-pic
-        --disable-examples
-        CC=${CMAKE_C_COMPILER}
-    BUILD_COMMAND
-      ${MAKE_EXECUTABLE} -j${nproc}
-
-    USES_TERMINAL_CONFIGURE ON
-    USES_TERMINAL_BUILD ON
-    USES_TERMINAL_INSTALL ON
-  )
-
+if(WASI_SDK_LLDB)
   list(APPEND projects lldb)
   list(APPEND tools lldb liblldb)
   list(APPEND default_cmake_args
@@ -126,9 +106,43 @@ if(LLDB)
     -DLLDB_ENABLE_LIBXML2=OFF
     -DLLDB_ENABLE_FBSDVMCORE=OFF
     -DLLDB_ENABLE_LINUXPTY=OFF
-    -DLLDB_ENABLE_LIBEDIT=ON
-    -DLibEdit_ROOT=${CMAKE_INSTALL_PREFIX}
   )
+
+  if (WASI_SDK_LIBEDIT)
+    include(ProcessorCount)
+    ProcessorCount(nproc)
+    find_program(MAKE_EXECUTABLE make REQUIRED)
+    ExternalProject_Add(libedit
+      URL https://thrysoee.dk/editline/libedit-20251016-3.1.tar.gz
+      URL_HASH SHA256=21362b00653bbfc1c71f71a7578da66b5b5203559d43134d2dd7719e313ce041
+
+      # Without this the build system tries to find and use `aclocal-1.18` where
+      # with this it doesn't so turn this on.
+      DOWNLOAD_EXTRACT_TIMESTAMP ON
+
+      CONFIGURE_COMMAND
+        <SOURCE_DIR>/configure
+          --prefix=${CMAKE_INSTALL_PREFIX}
+          --enable-pic
+          --disable-examples
+          CC=${CMAKE_C_COMPILER}
+          CFLAGS=${libedit_cflags}
+          LDFLAGS=${libedit_cflags}
+      BUILD_COMMAND
+        ${MAKE_EXECUTABLE} -j${nproc} V=1
+
+      USES_TERMINAL_CONFIGURE ON
+      USES_TERMINAL_BUILD ON
+      USES_TERMINAL_INSTALL ON
+    )
+    list(APPEND default_cmake_args
+      -DLLDB_ENABLE_LIBEDIT=ON
+      -DLibEdit_ROOT=${CMAKE_INSTALL_PREFIX}
+    )
+  else()
+    list(APPEND default_cmake_args -DLLDB_ENABLE_LIBEDIT=OFF)
+    add_custom_target(libedit)
+  endif()
 else()
   add_custom_target(libedit)
 endif()