Description:
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When running buildconf and configure on the same source directory, but via different symlinks, the resulting Makefile produces rules that result in nmake clean causing all the files (but not directories) of the source dir being deleted.

Actual result:
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The gist https://gist.github.com/1381227 contains two files.

In the first, both buildconf and configure were run under C:\Users\Cataphract_\Documents\php-src

In the second, buildconf was run under C:\Users\Cataphract\Documents\php-src and configure was run under C:\Users\Cataphract_\Documents\php-src

C:\Users\Cataphract_\Documents\php-src and C:\Users\Cataphract\Documents\php-src represent the same directory.

nmake clean was run under C:\Users\Cataphract_\Documents\php-src in both cases.