Adjust Makefile for LLVM trunk (19) as of 2024-07-10 (#512)

llvm/llvm-project@0e7590a

Makefile

@@ -872,6 +872,7 @@ check-symbols: startup_files libc
  @# TODO: Filter out __MEMORY_SCOPE_* that are new to clang 18.
  @# TODO: Filter out __GCC_(CON|DE)STRUCTIVE_SIZE that are new to clang 19.
  @# TODO: Filter out __STDC_EMBED_* that are new to clang 19.
+ @# TODO: Filter out __*_NORM_MAX__ that are new to clang 19.
  @# 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
@@ -912,6 +913,7 @@ check-symbols: startup_files libc
  | grep -v '^#define __MEMORY_SCOPE_' \
  | grep -v '^#define __GCC_\(CON\|DE\)STRUCTIVE_SIZE' \
  | grep -v '^#define __STDC_EMBED_' \
+ | grep -v '^#define __\(DBL\|FLT\|LDBL\)_NORM_MAX__' \
  | grep -v '^#define NDEBUG' \
  | grep -v '^#define __OPTIMIZE__' \
  | grep -v '^#define assert' \