Compiled LLVM 7.0, but cannot ciompile this project

[liuxuan30]

Not sure if it's LLVM version issue. Any plan to upgrade the support for LLVM, or we have to use 3.9? Thanks

XuanLiuLaptop:class-dump-swift-master xuanliu$ make
clang main.mm Demangle.cpp Punycode.cpp -std=c++11 `llvm-config --libs` `llvm-config --cxxflags` `llvm-config --ldflags` -lstdc++ -lncurses -o swiftd
Demangle.cpp:282:11: warning: enumeration value 'DestructiveInjectEnumTag' not handled in switch [-Wswitch]
  switch (k) {
          ^
Demangle.cpp:282:11: note: add missing switch cases
  switch (k) {
          ^
Demangle.cpp:2400:22: warning: 8 enumeration values not handled in switch: 'ReflectionMetadataBuiltinDescriptor',
      'ReflectionMetadataFieldDescriptor', 'ReflectionMetadataAssocTypeDescriptor'... [-Wswitch]
    switch (pointer->getKind()) {
                     ^
Demangle.cpp:2400:22: note: add missing switch cases
    switch (pointer->getKind()) {
                     ^
Demangle.cpp:2929:11: warning: 8 enumeration values not handled in switch: 'ReflectionMetadataBuiltinDescriptor',
      'ReflectionMetadataFieldDescriptor', 'ReflectionMetadataAssocTypeDescriptor'... [-Wswitch]
  switch (kind) {
          ^
Demangle.cpp:2929:11: note: add missing switch cases
  switch (kind) {
          ^
3 warnings generated.
Undefined symbols for architecture x86_64:
  "_compress2", referenced from:
      llvm::zlib::compress(llvm::StringRef, llvm::SmallVectorImpl<char>&, llvm::zlib::CompressionLevel) in libLLVMSupport.a(Compression.cpp.o)
  "_compressBound", referenced from:
      llvm::zlib::compress(llvm::StringRef, llvm::SmallVectorImpl<char>&, llvm::zlib::CompressionLevel) in libLLVMSupport.a(Compression.cpp.o)
  "_crc32", referenced from:
      llvm::zlib::crc32(llvm::StringRef) in libLLVMSupport.a(Compression.cpp.o)
  "_uncompress", referenced from:
      llvm::zlib::uncompress(llvm::StringRef, char*, unsigned long&) in libLLVMSupport.a(Compression.cpp.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [all] Error 1

[caioremedio]

Use clang++ and add -lz. Should work:

clang++ main.mm Demangle.cpp Punycode.cpp -std=c++11 `llvm-config --libs` `llvm-config --cxxflags` `llvm-config --ldflags` -lstdc++ -lncurses -o swiftd -lz