ld: symbol(s) not found for architecture i386

[mcandre]

Specs:

• LLVM 3.0 SVN

• Mac OS X 10.7.1 Lion

  $ ./configure
  ...
  $ make
  ...
  "_LLVMWriteBitcodeToFile", referenced from:
  -exported_symbol[s_list] command line option
  "_LLVMWriteBitcodeToFileHandle", referenced from:
  -exported_symbol[s_list] command line option
  "_LLVMX86FP80Type", referenced from:
  -exported_symbol[s_list] command line option
  "_LLVMX86FP80TypeInContext", referenced from:
  -exported_symbol[s_list] command line option
  "_LLVMX86MMXType", referenced from:
  -exported_symbol[s_list] command line option
  "_LLVMX86MMXTypeInContext", referenced from:
  -exported_symbol[s_list] command line option
  "_LLVMConstNamedStruct", referenced from:
  -exported_symbol[s_list] command line option
  "_LLVMStructCreateNamed", referenced from:
  -exported_symbol[s_list] command line option
  "_LLVMStructSetBody", referenced from:
  -exported_symbol[s_list] command line option
  ld: symbol(s) not found for architecture i386
  collect2: ld returned 1 exit status
  make: *** [rustllvm/librustllvm.dylib] Error 1

[brson]

Possibly LLVM isn't compiled for 32-bit, or maybe configure is picking up the wrong LLVM install.

otool -hv $CFG_LLVM_ROOT/lib/libLLVMCore.a should show the cputype as I386, not X86_64 (where $CFG_LLVM_ROOT is wherever LLVM is installed).

The getting started page on the wiki has some specific flags for configuring LLVM. You may want to confirm that LLVM is built correctly.

https://github.com/graydon/rust/wiki/Getting-started

[mcandre]

Thanks, that doc helps a lot.

Homebrew can build a universal LLVM, but it will be LLVM v2.8.

brew install llvm --universal

If Rust could compile with LLVM v2.8, everything would be peachy.

[jckarter]

Use '-arch i386 -arch x86_64' in place of '-m32' when configuring llvm and it should build universally for you.

[mcandre]

I tried ./configure -arch i386 -arch x86_64, but configure doesn't accept these flags. Where exactly do I specify them?

[jckarter]

@mcandre Use them in place of '-m32' in the CFLAGS etc. for the configure command from the wiki page:

CXX='g++ -arch i386 -arch x86_64' CC='gcc -arch i386 -arch x86_64' CFLAGS='-arch i386 -arch x86_64' CXXFLAGS='-arch i386 -arch x86_64' LDFLAGS='-arch i386 -arch x86_64' ./configure --disable-bindings --{build,host,target}=i686-apple-darwin --enable-targets=x86,x86_64,cbe --enable-optimized

[mcandre]

$ CXX='g++ -arch i386 -arch x86_64' CC='gcc -arch i386 -arch x86_64' CFLAGS='-arch i386 -arch x86_64' CXXFLAGS='-arch i386 -arch x86_64' LDFLAGS='-arch i386 -arch x86_64' ./configure --disable-bindings --{build,host,target}=i686-apple-darwin --enable-targets=x86,x86_64,cbe --enable-optimized
checking for i686-apple-darwin-clang... gcc -arch i386 -arch x86_64
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc -arch i386 -arch x86_64 accepts -g... yes
checking for gcc -arch i386 -arch x86_64 option to accept ISO C89... none needed
checking whether we are using the GNU C++ compiler... yes
checking whether g++ -arch i386 -arch x86_64 accepts -g... yes
checking how to run the C preprocessor... /lib/cpp
configure: error: C preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details.

[graydon]

We are building our own LLVM libs now, this should be obsolete (I think). Closing.