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[Patch, libfortran] Fix usage of secure_getenv with glibc 2.17

From: Janne Blomqvist <blomqvist dot janne at gmail dot com>
To: Fortran List <fortran at gcc dot gnu dot org>, GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Sun, 7 Oct 2012 00:00:07 +0300
Subject: [Patch, libfortran] Fix usage of secure_getenv with glibc 2.17

Hi,

glibc 2.17 has renamed the exported but ostensibly private symbol
__secure_getenv to secure_getenv. The attached patch updates
libgfortran to first check for the presence of this new symbol. See
http://sourceware.org/glibc/wiki/Tips_and_Tricks/secure_getenv for
more details.

Committed as obvious.

2012-10-06  Janne Blomqvist  <jb@gcc.gnu.org>

	* configure.ac: Check for presence of secure_getenv.
	* libgfortran.h: Use HAVE_SECURE_GETENV.
	* Makefile.in: Regenerated.
	* aclocal.m4: Regenerated.
	* config.h.in: Regenerated.
	* configure: Regenerated.



-- 
Janne Blomqvist

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