On Fri, 2016 Dec 16 14:58-0800, Paul Eggert wrote:
> 
> No, it's a compiler builtin. I installed the attached to gnulib;
> please give it a try.

Alas, git master 005973d6 gives me a new build failure:

source='/u/darkstar/testdir/gllib/allocator.c' object='allocator.o' libtool=no \
DEPDIR=.deps depmode=aix /bin/sh /u/darkstar/testdir/build-aux/depcomp \
xlc-wrap -DHAVE_CONFIG_H -I. -I/u/darkstar/testdir/gllib -I..  
-DGNULIB_STRICT_CHECKING=1 -D_XOPEN_SOURCE=600 -DNSIG=39 -qhaltonmsg=CCN3296  
-g -qfloat=ieee -qlanglvl=extc99  -c -o allocator.o 
/u/darkstar/testdir/gllib/allocator.c
ERROR CCN3046 /usr/include/builtins.h:1858  Syntax error.
CCN0793(I) Compilation failed for file /u/darkstar/testdir/gllib/allocator.c.  
Object file not created.
make[3]: *** [allocator.o] Error 12

It seems like the configure-time detection of __builtin_expect() failed:

configure:32144: checking for __builtin_expect
configure:32159: xlc-wrap -o conftest -g -qfloat=ieee -qlanglvl=extc99  
-D_XOPEN_SOURCE=600 -DNSIG=39 -qhaltonmsg=CCN3296  conftest.c  >&5
 IEW2456E 9207 SYMBOL __builtin_expect UNRESOLVED.  MEMBER COULD NOT BE INCLUDED
          FROM THE DESIGNATED CALL LIBRARY.                                     
FSUM3065 The LINKEDIT step ended with return code 8.
configure:32159: $? = 3

Some testing shows that "#include<builtins.h>" is needed in order for
the linkage to work correctly. #include<stdlib.h> also does the trick,
as that header pulls in this one unconditionally.


--Daniel


-- 
Daniel Richard G. || sk...@iskunk.org
My ASCII-art .sig got a bad case of Times New Roman.

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