[llvm-commits] [PATCH] Fix CMake check for pthread_mutex_lock

[Brad Smith]

On Fri, Aug 24, 2012 at 06:50:31AM -0400, Brad Smith wrote:
> On Sat, Aug 18, 2012 at 03:03:37AM -0400, Brad Smith wrote:
> > The attached diff for the CMake build infrastructure fixes
> > the check for pthead_mutex_lock. CMake is attempting to build
> > a binary to check for the existence of the symbol but not
> > linking in libpthread.
> > 
> > /usr/bin/cc   -O2 -pipe        CMakeFiles/cmTryCompileExec2801244708.dir/CheckSymbolExists.c.o  -o cmTryCompileExec2801244708  -lm -Wl,-rpath-link,/usr/X11R6/lib:/us
> > r/local/lib
> > CMakeFiles/cmTryCompileExec2801244708.dir/CheckSymbolExists.c.o(.text+0x6): In function `main':
> > : undefined reference to `pthread_mutex_lock'
> > collect2: ld returned 1 exit status
>  
> ping.

Anyone?

> > Index: cmake/config-ix.cmake
> > ===================================================================
> > --- cmake/config-ix.cmake	(revision 161828)
> > +++ cmake/config-ix.cmake	(working copy)
> > @@ -87,6 +87,7 @@
> >    check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
> >    check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
> >    check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
> > +  check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
> >    check_library_exists(dl dlopen "" HAVE_LIBDL)
> >  endif()
> >  
> > @@ -134,9 +135,6 @@
> >  check_symbol_exists(strcmp string.h HAVE_STRCMP)
> >  check_symbol_exists(strdup string.h HAVE_STRDUP)
> >  check_symbol_exists(strrchr string.h HAVE_STRRCHR)
> > -if( NOT PURE_WINDOWS )
> > -  check_symbol_exists(pthread_mutex_lock pthread.h HAVE_PTHREAD_MUTEX_LOCK)
> > -endif()
> >  check_symbol_exists(sbrk unistd.h HAVE_SBRK)
> >  check_symbol_exists(srand48 stdlib.h HAVE_RAND48_SRAND48)
> >  if( HAVE_RAND48_SRAND48 )
> 
> > _______________________________________________
> > llvm-commits mailing list
> > llvm-commits at cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
> 
> 
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