On Wed, Aug 31, 2005 at 05:40:59PM +0200, Stepan Kasal wrote: > Hello, > I noticed that the "break" called in a parameter to > AC_LINK_IFELSE skips the command > rm conftest conftest.$ac_objext ... > > This means that the files are left uncleaned. > > The patch attached to this mail exposes the problem. > > There are two ways to fix the problem: > 1) Add a "rm" to AC_SEARCH_LIBS
This is unpleasant. > 2) Fix the macro AC_LINK_IFELSE so that it cleans up before it executes > the commands given as parameters. For new interfaces, this looks wise. Libtool, specifically _LT_AC_SYS_LIBPATH_AIX aka _LT_SYS_MODULE_PATH_AIX, interrogates the object file in the IF-SUCCESS command. The documentation does not suggest that this should work; if only recent Libtool development made the assumption, we could just fix Libtool. The usage was added on 2001-07-23, so it is present in many or all of 1.5.X. Autoconf 2.60 ought to work with all Libtool releases that work with 2.59, making this option unacceptable. I suggest this solution: 3) Do not branch from the IF-SUCCESS or IF-FAILURE. Use an idiom like this: break_me=: for ...; do AC_LINK_IFELSE([], [... && break_me=break]) $break_me done or this: var_we_set_anyway=no for ...; do AC_LINK_IFELSE([], [... && var_we_set_anyway=yes]) test $var_we_set_anyway = no || break done *snip Autoconf test suite patch* _______________________________________________ http://lists.gnu.org/mailman/listinfo/libtool
