tree ffdbc1f067646102925b013ebd52ab058b03aa44
parent bfcace04f91bd27c8c7c040da2396fe4b7724422
author Mark Adler <madler@alumni.caltech.edu> 1438552018 -0700
committer Mark Adler <madler@alumni.caltech.edu> 1438576550 -0700

Allow building zlib outside of the source directory.

To build, simply run configure from the source directory by
specifying its path.  That path will be used to find the source
files.  The source directory will not be touched.  All new and
modified files will be made in the current directory.  Discovered
in the process that not all makes understand % or $<, and not all
compilers understand -include or -I-.  This required a larger
Makefile.in with explicit dependencies.