Sébastien Sablé <[email protected]> added the comment:
Here is a new test for flock. HAVE_FLOCK is defined if we can link a C
application calling flock, or if flock is defined in libbsd.
FLOCK_NEEDS_LIBBSD is also defined in the second case.
AC_MSG_CHECKING(for flock)
have_flock=no
AC_TRY_LINK([
#include "confdefs.h"
#include <sys/file.h>
], [void* p = flock; flock(0, 0)],
[AC_CHECK_LIB(bsd,flock, [
AC_DEFINE(FLOCK_NEEDS_LIBBSD, 1, Define if flock needs to be linked with
bsd library.)
have_flock=yes
])],
[have_flock=yes]
)
if test "$have_flock" = yes ; then
AC_DEFINE(HAVE_FLOCK, 1, Define if you have the 'flock' function.)
fi
AC_MSG_RESULT($have_flock)
I think that this new test would also cover your case with a broken AIX libbsd?
[I haven't actually tried to compile it yet, if the behavior is OK I will test
it in both autoconf formats and provide some new patches tomorrow]
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<http://bugs.python.org/issue4026>
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