environment variables causing configure to fail

[Michael Carmack]

This affects 1.5.4, but not 1.4 or 1.3.2a. Apparently in some sort of
recursive configure, the original configure attempts to pass environment
variables, but during 'libltdl' this seems to cause a problem. Here is
the output:


configure: configuring in libltdl
configure: running /bin/sh './configure'  
--prefix=/pkg/gnu/guile/1.5.4-build-default.1 
--bindir=/pkg/gnu/guile/1.5.4-build-default.1/bin 
--sbindir=/pkg/gnu/guile/1.5.4-build-default.1/bin 
--mandir=/pkg/gnu/guile/1.5.4-build-default.1/doc/man 
--infodir=/pkg/gnu/guile/1.5.4-build-default.1/doc/info 
--sysconfdir=/pkg/gnu/guile/1.5.4-build-default.1/etc 
--libdir=/pkg/gnu/guile/1.5.4-build-default.1/lib 
--includedir=/pkg/gnu/guile/1.5.4-build-default.1/include 
--datadir=/pkg/gnu/guile/1.5.4-build-default.1/share 'CC=gcc 
-L/pkg/gnu/glibc/2.1.3/lib -L/pkg/gnu/gcc/2.95.3/lib 
-L/pkg/kernel/linux/2.4.10/lib -L/pkg/gnu/ncurses/5.2/lib 
-L/pkg/gnu/readline/4.1/lib'
configure: warning: CC=gcc -L/pkg/gnu/glibc/2.1.3/lib -L/pkg/gnu/gcc/2.95.3/lib 
-L/pkg/kernel/linux/2.4.10/lib -L/pkg/gnu/ncurses/5.2/lib 
-L/pkg/gnu/readline/4.1/lib: invalid host type
configure: error: can only configure for one host and one target at a time
configure: error: /bin/sh './configure' failed for libltdl
sed: can't read confdefs.h: No such file or directory



Note that it looks like the same thing is done earlier during the configure 
of 'guile-readline', and it doesn't cause any problems there.

I wonder if this is even necessary though. If the variables need to be
available to the subshells invoked by 'configure', couldn't they simply 
be exported?

m.