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diff --git a/Makefile b/Makefile
index d2ccff6..95f395b 100644
--- a/Makefile
+++ b/Makefile
@@ -178,6 +178,7 @@ LIBCXX_CMAKE_FLAGS = \
-DLIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY:BOOL=OFF \
-DLIBCXXABI_HAS_WIN32_THREAD_API:BOOL=OFF \
-DLIBCXXABI_ENABLE_PIC:BOOL=OFF \
+ -DLIBCXXABI_USE_LLVM_UNWINDER:BOOL=OFF \
-DWASI_SDK_PREFIX=$(BUILD_PREFIX) \
-DUNIX:BOOL=ON \
--debug-trycompile
diff --git a/src/wasi-libc/Makefile b/src/wasi-libc/Makefile
index f350ecb..9a5c940 100644
--- a/src/wasi-libc/Makefile
+++ b/src/wasi-libc/Makefile
@@ -308,7 +308,7 @@ ASMFLAGS += --target=$(TARGET_TRIPLE)
# TODO: Add -fno-signaling-nans when the compiler supports it.
CFLAGS += -fno-trapping-math
# Add all warnings, but disable a few which occur in third-party code.
-CFLAGS += -Wall -Wextra -Werror \
+CFLAGS += -Wall -Wextra \
-Wno-null-pointer-arithmetic \
-Wno-unused-parameter \
-Wno-sign-compare \
@@ -671,6 +671,9 @@ check-symbols: startup_files libc
@#
@# TODO: Filter out __NO_MATH_ERRNO_ and a few __*WIDTH__ that are new to clang 14.
@# TODO: Filter out __GCC_HAVE_SYNC_COMPARE_AND_SWAP_* that are new to clang 16.
+ @# TODO: Filter out __FPCLASS_* that are new to clang 17.
+ @# TODO: Filter out __FLT128_* that are new to clang 18.
+ @# TODO: Filter out __MEMORY_SCOPE_* that are new to clang 18.
@# TODO: clang defined __FLT_EVAL_METHOD__ until clang 15, so we force-undefine it
@# for older versions.
@# TODO: Undefine __wasm_mutable_globals__ and __wasm_sign_ext__, that are new to
@@ -702,6 +703,9 @@ check-symbols: startup_files libc
| sed -e 's/__GNUC_VA_LIST $$/__GNUC_VA_LIST 1/' \
| grep -v '^#define __\(BOOL\|INT_\(LEAST\|FAST\)\(8\|16\|32\|64\)\|INT\|LONG\|LLONG\|SHRT\)_WIDTH__' \
| grep -v '^#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_\(1\|2\|4\|8\)' \
+ | grep -v '^#define __FPCLASS_' \
+ | grep -v '^#define __FLT128_' \
+ | grep -v '^#define __MEMORY_SCOPE_' \
> "$(SYSROOT_SHARE)/predefined-macros.txt"
# Check that the computed metadata matches the expected metadata.