Initially reported here: http://thread.gmane.org/gmane.comp.gnu.mingw.user/33435/focus=33455
Reproduced with: autoconf-2.61 on MSYS/Win2K autoconf-2.63 on Ubuntu-8.04-LTS Minimal test case: $ cat Makefile.in # @configure_input@ srcdir = @srcdir@ VPATH = @srcdir@/src # EOF $ cat configure.ac AC_INIT AC_CONFIG_FILES([Makefile]) AC_OUTPUT # EOF $ autoconf $ ./configure $ grep VPATH Makefile VPATH = /src Note that this should be `VPATH = ./src', but the dot, which should have resulted from substitution of @srcdir@, has been elided. Note however: $ mkdir bld ; cd bld $ ../configure $ grep VPATH Makefile VPATH = ../src yields the expected result. -- Regards, Keith.