[LLVMdev] CMake build maturity [was: Re: Arm port]

[Paul Melis]

Hi,

Paul Melis wrote:
> Hi, just chiming in here...
>
> Óscar Fuentes wrote:
>   
>> [...]
>>
>> This is a simple guide for using cmake with LLVM:
>>
>> http://www.llvm.org/docs/CMake.html
>>   
>> The makefiles distributed with LLVM have nothing to do with cmake.
>>     
> >From the few times I tried building LLVM with CMake I got the impression
> that it wasn't completely mature yet (the "TODO" sections in the page
> you mention above reinforce that impression). I remember at least one
> other build error in the past, related to building a non-X86 backend.
>
> With current svn I get:
>
> %> mkdir llvm-svn-build
> %>  cd llvm-svn-build/
> %>  ccmake ../llvm-svn
> # Basically only tweak the install prefix in ccmake, configure, generate
> %> make
> ...
> [  2%] Built target LLVMSupport
> [  3%] Built target LLVMSystem
> Linking CXX executable ../../bin/tblgen
> ../../lib/libLLVMSystem.a(Mutex.cpp.o): In function
> `llvm::sys::Mutex::tryacquire()':
> Mutex.cpp:(.text+0x3f): undefined reference to `pthread_mutex_trylock'
> ../../lib/libLLVMSystem.a(Mutex.cpp.o): In function
> `llvm::sys::Mutex::Mutex(bool)':
> Mutex.cpp:(.text+0x1bb): undefined reference to `pthread_mutexattr_init'
> Mutex.cpp:(.text+0x216): undefined reference to `pthread_mutexattr_settype'
> Mutex.cpp:(.text+0x256): undefined reference to
> `pthread_mutexattr_setpshared'
> Mutex.cpp:(.text+0x2a3): undefined reference to `pthread_mutexattr_destroy'
> ../../lib/libLLVMSystem.a(Mutex.cpp.o): In function
> `llvm::sys::Mutex::Mutex(bool)':
> Mutex.cpp:(.text+0x309): undefined reference to `pthread_mutexattr_init'
> Mutex.cpp:(.text+0x364): undefined reference to `pthread_mutexattr_settype'
> Mutex.cpp:(.text+0x3a4): undefined reference to
> `pthread_mutexattr_setpshared'
> Mutex.cpp:(.text+0x3f1): undefined reference to `pthread_mutexattr_destroy'
> collect2: ld returned 1 exit status
> make[2]: *** [bin/tblgen] Error 1
> make[1]: *** [utils/TableGen/CMakeFiles/tblgen.dir/all] Error 2
> make: *** [all] Error 2
>
> This is on a Core2Duo 32-bit Gentoo Linux system, where building with
> ./configure; make succeeds without problems.
>   
I see the cmake build scripts were quickly updated,  builds fine now
with r72277 :)

Paul