[Mingw-msys] Strange behaviour of $0 in scripts called from MSys perl 5.6.1, breaking autoconf

[Michael Ruder <rudermi@xxxxxx>]

Hi,

When I do the following:

michael@SHUTTLE ~
$ cat test.sh
#!/bin/sh

echo $0


michael@SHUTTLE ~
$ ./test.sh
./test.sh

michael@SHUTTLE ~
$ perl -e "system('./test.sh');"
C:\msys\1.0\home\michael\test.sh

michael@SHUTTLE ~
$ autoreconf
am-wrapper: C:msys1.0localbinaclocal-1.10 is missing or not executable.
              Please try installing the correct version of automake.
autoreconf-2.61: aclocal failed with exit status: 1


One can see, that $0 is returning a non-MSYS-path when called in shell 
scripts called by perl, while it works otherwise. This will break the 
am-wrapper script of autotools.

I did some research but could not find a hint to solve the problem. In my 
eyes, the problem is localized in the MSYS perl, or am I missing 
something?
-- 
.      -Michael

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   < Hans Michael Ruder, mailto:rudermi@xxxxxx, http://www.ruder.home.pages.de/ >
    \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
        PGP (DH/DSS) fingerprint: E36AA1E3E9083C104E71 8374375B2F4272C7E44E

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