db48, db51, db52, db53: error: definition of builtin function '__atomic_compare_exchange'

[ryandesign (Ryan Carsten Schmidt)]

./libtool --mode=compile /usr/bin/clang -c -I. -I../src -I/opt/local/include -pipe -Os -arch x86_64  ../src/mutex/mut_tas.c
libtool: compile:  /usr/bin/clang -c -I. -I../src -I/opt/local/include -pipe -Os -arch x86_64 ../src/mutex/mut_tas.c  -fno-common -DPIC -o .libs/mut_tas.o
In file included from ../src/mutex/mut_tas.c:11:
In file included from ./db_int.h:1113:
In file included from ../src/dbinc/mutex.h:15:
In file included from ../src/dbinc/mutex_int.h:12:
../src/dbinc/atomic.h:179:19: error: definition of builtin function '__atomic_compare_exchange'
static inline int __atomic_compare_exchange(
                  ^
1 error generated.

OS X 10.8.2, Xcode 4.6, Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn)

[afb@…]

Fixed, r104135.

Patch from FreeBSD ports, and ​http://lists.freebsd.org/pipermail/freebsd-current/2012-May/033615.html

[ryandesign (Ryan Carsten Schmidt)]

Thanks, that fixed db53, but other dbXX versions need the fix too.

[iwerris@…]

Is there any workaround feasible in the short term? I'm encountering this issue for db48.

[afb@…]

Fixed, r104994. (workaround would have been to use llvm-gcc)

[afb@…]

Backported to db51 and db52 too, even though those should probably be replaced_by.