[Zlib-devel] [patch] Reset LANG and LC_* vars to safe values of C in ./configure script

[Samuli Suominen]

With zlib-1.2.4,

export LANG="et_EE"
./configure

The files get installed to,

/--prefix/usr/include/zlib.h
/--prefix/usr/include/zconf.h
/--prefix/usr/share/man/man3/zlib.3.bz2

Notice the --prefix failure here.

Original bug against zlib-1.2.4 is here,
http://bugs.gentoo.org/show_bug.cgi?id=310225

It's because sed like [a-z] in ./configure script fail as described
here: http://www.gentoo.org/proj/en/qa/autofailure.xml , see the bottom
of the page for section , "Failure during configure on some locales
(like et_EE)".

So if LANG is set, it's good idea to reset it to C to be
locale-independent. The attached patch does this.

Thanks, Samuli
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