Repost: AC_CONFIG_SUBDIRS problem

[David Snopek]

I really need some assistance with this problem, so here is a 
re-explanation.  Here is my directory tree:

project/
  |
  |- configure
  |- configure.in
  |- src/
  |   |
  |  ...
  |   |- main.cpp
 ...
  |
  |- libltdl/
      |
     ...
      |- configure.in
      |- configure
      |- ltdl.c


This is an over simplification, but you get the idea.  The main 
configure script has a line like "AC_CONFIG_SUBDIRS(libltdl)".  This 
works in most situations, when I am just passing --enable/--disable 
arguments to configure.  But when I pass a build type for example:

./configure --build=i386-mingw32msvc

The configure script in libltdl gets called with:

./configure --build=i386-mingw32msvc build_alias=i386-mingw32msvc

The configure script then freaks out because it thinks 
"build_alias=i386-mingw32msvc" is supposed to be the host type!!  To me 
this looks like a bug, but I could just be doing something wrong.  I 
looked through the generated configure script and the m4 macros in 
/usr/local/share/autoconf and I believe I have traced the problem to 
acgeneral.m4, lines 1555 to 1566.  It appears that the "build_alias=..." 
argument was intended for config.status but inadvertently got passed to 
the subdir-configure...

Does anyone have any ideas?  I am using autoconf 2.52.  Is there an 
autoconf I upgrade/downgrade to that doesn't have this bug (if it is a bug)?

Thanks!
        -- David Snopek

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