[LLVMdev] Can't compile Apple's version on Linux (original) (raw)

Andrew Udvare audvare at gmail.com
Mon Sep 5 20:42:25 PDT 2011

Filed a bug with Apple 10073924  but I'm wondering if anyone else knows what to fix here:

Summary: Building a Darwin cross compiler so I can use distcc with my Mac. Host: x86_64-gnu-linux with GCC 4.5.3. Steps to Reproduce: Download tar ball tar xvf llvmgcc42-2335.15.tar.gz mkdir gcc-build cd gcc-build CFLAGS="-w -m32" CXXFLAGS="$CFLAGS" CPPFLAGS="$CFLAGS" LDFLAGS="-m32" ../llvmgcc42-2335.15/configure --target=x86_64-apple-darwin11 --with-sysroot=/home/tatsh/usr/x86_64-apple-darwin11 --prefix=/home/tatsh/usr/x86_64-apple-darwin11 --enable-languages=objc,c++,obj-c++ make

Note: Had to comment out an incompatible declaration of mempcpy to get this far.

c-typeck.o: In function store_init_value': c-typeck.c:(.text+0x950d): undefined reference to TheTreeToLLVM' c-typeck.c:(.text+0x951c): undefined reference to reset_type_and_initializer_llvm' collect2: ld returned 1 exit status make[2]: *** [cc1-dummy] Error 1 make[2]: Leaving directory /home/tatsh/dev/apple-darwin/llvm-build/gcc' make[1]: *** [all-gcc] Error 2 make[1]: Leaving directory `/home/tatsh/dev/apple-darwin/llvm-build' make: *** [all] Error 2

http://opensource.apple.com/source/llvmgcc42/llvmgcc42-2335.15/gcc/c-typeck.c In the file, there's also this line and comment: extern void * TheTreeToLLVM; /* llvm-internal.h is not available here. Ugh. */

I had a little bit of trouble getting cctools to work on Linux (and it's still patchy/hacky but works). After that, I have distcc working on my Mac to ask my more modern system to compile working fine with everything except Objective-C/C++ (I'm not entirely sure why yet, it's not error 110 and there is no error number). I'd like to continue by adding llvm-gcc which is actually what I build with in Xcode (GCC is what I use in Gentoo prefix; Macports also uses GCC).

Thanks

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