[cfe-dev] compiling C++ with clang++

[Roman Divacky]

On Tue, Mar 02, 2010 at 05:58:18AM -0500, Salman Pervez wrote:
> I'm trying to compile a fairly simple C++ program with clang++. I get  
> the following error message
> 
> vec.cpp:1:10: fatal error: 'iostream' file not found
> #include <iostream>
>          ^
> 1 diagnostic generated.
> 
> After looking around a bit on the clag website I came across this  
> wonderful hack
> 
> - Look for the comment "FIXME: temporary hack: hard-coded paths" in  
> clang/lib/Frontend/InitHeaderSearch.cpp and change the lines below to  
> include that path.
> 
> After adding the relevant paths I still get this linker error
> 
> /tmp/cc-TKUPKY.o: 
> (.gnu.linkonce.r._ZZ18__gthread_active_pvE20__gthread_active_ptr+0x0):  
> undefined reference to `__gthrw_pthread_cancel(unsigned long)'
> collect2: ld returned 1 exit status
> clang: error: linker command failed with exit code 1 (use -v to see  
> invocation)
> 
> Has anyone come across a similar situation? thanks,

this was recently fixed... either update your clang/llvm or use clang++ -O2