Michael Haubenwallner <michael.haubenwall...@salomon.at> added the comment:
Sébastien, while this gives expected results on the AIX box here, it still has one subtle problem: AC_TRY_LINK may fail due to missing declaration in <sys/file.h> _or_ due to missing implementation in libc. The subsequent AC_CHECK_LIB won't fail when the implementation is in libbsd but the declaration is missing - this is the case on not-so-recent AIX5.3 (and the reason python worked there before). Another minor nit is configure's output when libbsd is needed: > checking for flock... checking for flock in -lbsd... yes > yes Anyway - I've hacked up another variant (with recent autoconf manual at hand), which really should cover all known situations now (additionally using cache-checks): AC_CACHE_CHECK([for flock declaration], [ac_cv_flock_decl], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [#include <sys/file.h>], [void* p = flock] )], [ac_cv_flock_decl=yes], [ac_cv_flock_decl=no] ) ]) if test "x${ac_cv_flock_decl}" = xyes; then AC_CHECK_FUNCS(flock,, AC_CHECK_LIB(bsd,flock, [AC_DEFINE(HAVE_FLOCK) AC_DEFINE(FLOCK_NEEDS_LIBBSD, 1, Define if flock needs to be linked with bsd library.) ]) ) fi Thank you anyway! ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue4026> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com