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diff --git a/src/wasi-libc/Makefile b/src/wasi-libc/Makefile
index 44acdee..6e01bed 100644
--- a/src/wasi-libc/Makefile
+++ b/src/wasi-libc/Makefile
@@ -556,6 +556,8 @@ check-symbols: startup_files libc
-U__clang_version__ \
-U__clang_literal_encoding__ \
-U__clang_wide_literal_encoding__ \
+ -U__wasm_mutable_globals__ \
+ -U__wasm_sign_ext__ \
-U__GNUC__ \
-U__GNUC_MINOR__ \
-U__GNUC_PATCHLEVEL__ \
@@ -565,6 +567,8 @@ check-symbols: startup_files libc
-U__BITINT_MAXWIDTH__ \
-U__FLT_EVAL_METHOD__ -Wno-builtin-macro-redefined \
| sed -e 's/__[[:upper:][:digit:]]*_ATOMIC_\([[:upper:][:digit:]_]*\)_LOCK_FREE/__compiler_ATOMIC_\1_LOCK_FREE/' \
+ | sed -e 's/__GNUC_VA_LIST $$/__GNUC_VA_LIST 1/' \
| grep -v '^#define __FLT16_' \
| 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_\(1\|2\|4\|8\)' \
> "$(SYSROOT_SHARE)/predefined-macros.txt"