[Libclc-dev] libclc git compilation error with LLVM 5.0 git from to today

[Aaron Watry via Libclc-dev]

I'm headed back from a long weekend with the family.  I'll see if I can
find some time tonight to look at this if no one else gets to it before
then.

--Aaron

On Mon, Jun 19, 2017, 10:18 AM Dieter Nützel <Dieter at nuetzel-hh.de> wrote:

> Hello Jan and Aaron,
>
> compilation of latest libclc git with current LLVM 5.0
> (fe252ffdaa62fc676b1bceaaba90652e51f07e5f) resulted in this
> (LLVM git bug, missing pthread or openSUSE Tumbleweed PIE thing
> https://www.phoronix.com/scan.php?page=news_item&px=openSUSE-Tumbleweed-PIE
> ):
>
> LINK utils/prepare-builtins
> /usr/local/lib/libLLVMSupport.a(Mutex.cpp.o): In function
> `llvm::sys::MutexImpl::MutexImpl(bool)':
> Mutex.cpp:(.text._ZN4llvm3sys9MutexImplC2Eb+0x2c): undefined reference
> to `pthread_mutexattr_init'
> Mutex.cpp:(.text._ZN4llvm3sys9MutexImplC2Eb+0x38): undefined reference
> to `pthread_mutexattr_settype'
> Mutex.cpp:(.text._ZN4llvm3sys9MutexImplC2Eb+0x4b): undefined reference
> to `pthread_mutexattr_destroy'
> /usr/local/lib/libLLVMSupport.a(Mutex.cpp.o): In function
> `llvm::sys::MutexImpl::tryacquire()':
> Mutex.cpp:(.text._ZN4llvm3sys9MutexImpl10tryacquireEv+0x8): undefined
> reference to `pthread_mutex_trylock'
> /usr/local/lib/libLLVMSupport.a(Process.cpp.o): In function
> `llvm::sys::Process::SafelyCloseFileDescriptor(int)':
> Process.cpp:(.text._ZN4llvm3sys7Process25SafelyCloseFileDescriptorEi+0x3f):
> undefined reference to `pthread_sigmask'
> Process.cpp:(.text._ZN4llvm3sys7Process25SafelyCloseFileDescriptorEi+0x87):
> undefined reference to `pthread_sigmask'
> Process.cpp:(.text._ZN4llvm3sys7Process25SafelyCloseFileDescriptorEi+0xa2):
> undefined reference to `pthread_sigmask'
> /usr/local/lib/libLLVMSupport.a(Process.cpp.o): In function
> `llvm::sys::Process::FileDescriptorHasColors(int)':
> Process.cpp:(.text._ZN4llvm3sys7Process23FileDescriptorHasColorsEi+0x67):
> undefined reference to `setupterm'
> Process.cpp:(.text._ZN4llvm3sys7Process23FileDescriptorHasColorsEi+0x90):
> undefined reference to `tigetnum'
> Process.cpp:(.text._ZN4llvm3sys7Process23FileDescriptorHasColorsEi+0x99):
> undefined reference to `set_curterm'
> Process.cpp:(.text._ZN4llvm3sys7Process23FileDescriptorHasColorsEi+0xa1):
> undefined reference to `del_curterm'
> /usr/local/lib/libLLVMSupport.a(RWMutex.cpp.o): In function
> `llvm::sys::RWMutexImpl::RWMutexImpl()':
> RWMutex.cpp:(.text._ZN4llvm3sys11RWMutexImplC2Ev+0x23): undefined
> reference to `pthread_rwlock_init'
> /usr/local/lib/libLLVMSupport.a(RWMutex.cpp.o): In function
> `llvm::sys::RWMutexImpl::~RWMutexImpl()':
> RWMutex.cpp:(.text._ZN4llvm3sys11RWMutexImplD2Ev+0x8): undefined
> reference to `pthread_rwlock_destroy'
> /usr/local/lib/libLLVMSupport.a(RWMutex.cpp.o): In function
> `llvm::sys::RWMutexImpl::reader_acquire()':
> RWMutex.cpp:(.text._ZN4llvm3sys11RWMutexImpl14reader_acquireEv+0x8):
> undefined reference to `pthread_rwlock_rdlock'
> /usr/local/lib/libLLVMSupport.a(RWMutex.cpp.o): In function
> `llvm::sys::RWMutexImpl::reader_release()':
> RWMutex.cpp:(.text._ZN4llvm3sys11RWMutexImpl14reader_releaseEv+0x8):
> undefined reference to `pthread_rwlock_unlock'
> /usr/local/lib/libLLVMSupport.a(RWMutex.cpp.o): In function
> `llvm::sys::RWMutexImpl::writer_acquire()':
> RWMutex.cpp:(.text._ZN4llvm3sys11RWMutexImpl14writer_acquireEv+0x8):
> undefined reference to `pthread_rwlock_wrlock'
> /usr/local/lib/libLLVMSupport.a(RWMutex.cpp.o): In function
> `llvm::sys::RWMutexImpl::writer_release()':
> RWMutex.cpp:(.text._ZN4llvm3sys11RWMutexImpl14writer_releaseEv+0x8):
> undefined reference to `pthread_rwlock_unlock'
> /usr/local/lib/libLLVMSupport.a(Threading.cpp.o): In function
> `llvm::llvm_execute_on_thread(void (*)(void*), void*, unsigned int)':
> Threading.cpp:(.text._ZN4llvm22llvm_execute_on_threadEPFvPvES0_j+0x3c):
> undefined reference to `pthread_create'
> Threading.cpp:(.text._ZN4llvm22llvm_execute_on_threadEPFvPvES0_j+0x4c):
> undefined reference to `pthread_join'
> Threading.cpp:(.text._ZN4llvm22llvm_execute_on_threadEPFvPvES0_j+0x66):
> undefined reference to `pthread_attr_setstacksize'
> clang-5.0: error: linker command failed with exit code 1 (use -v to see
> invocation)
> make: *** [Makefile:14: utils/prepare-builtins] Fehler 1
>
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