[Llvm-bgq-discuss] Compiling apps on Cetus with clang

[Boisvert, Sebastien]

I have set +mpiwrapper-bgclang in my ~/.soft

Then I ran 'resoft'.

My build script is:

[boisvert at cetuslac1 biosal]$ cat scripts/IBM_Blue_Gene_Q/build-spate-clang.sh 
#!/bin/bash

# on Cetus:
# 1. edit ~/.soft
# 2. run 'resoft'

CFLAGS="-I. -g -O3 -DTHORIUM_DEBUG "
CFLAGS="$CFLAGS -I/soft/libraries/alcf/current/xl/ZLIB/include"
LDFLAGS="-L/soft/libraries/alcf/current/xl/ZLIB/lib -lm -lz"

make clean
make -j 8 CFLAGS="$CFLAGS" LDFLAGS="$LDFLAGS" \
    applications/spate_metagenome_assembler/spate


I am getting this error:





Clang 3.6.0
"clang version 3.6.0 (trunk)"
CFLAGS="-I. -g -O3 -DTHORIUM_DEBUG "

/bgsys/drivers/V1R2M2/ppc64/spi/include/kernel/cnk/process_impl.h:132:10: error: static declaration of 'Kernel_GetJobID' follows non-static declaration


Obviously, I am not the author of process_impl.h.

The line 132 is:

__INLINE__
uint64_t Kernel_GetJobID()
{
   return CNK_SPI_SYSCALL_0(GETJOBID);
}


The file /bgsys/drivers/V1R2M2/ppc64/spi/include/kernel/process.h contains the prototype:

/*! \brief Returns the JobID of the currently active job
 *
 * \return job identifier
 */
uint64_t Kernel_GetJobID();


I am not sure what is the problem. I suppose that it should also be __INLINE__  (whatever this is) in process.h.


I digged a little and __INLINE__ is defined in /bgsys/drivers/V1R2M2/ppc64/hwi/include/common/compiler_support.h at line 28:

#ifndef __INLINE__
#ifdef __llvm__
#define __INLINE__ static inline
#else
#define __INLINE__ extern inline __attribute__((always_inline))
#endif
#endif


So basically this is broken because a function can not be not static (in process.h) and static (process_impl.h) at the same time.

The obvious workaround here is to fix the broken compiler_support.h.



Is there a (easy) of solving this (without having to re-root the whole V1R2M2 tree !) ?