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build: do not redefine _FORTIFY_SOURCE
authorMike Frysinger <vapier@gentoo.org>
Tue, 23 Oct 2012 19:20:07 +0000 (15:20 -0400)
committerJim Meyering <jim@meyering.net>
Wed, 24 Oct 2012 16:03:36 +0000 (18:03 +0200)
commit9517680ed3d4d7baff8a842a052ad405f9e9049f
tree9845431eb169c256ffe40a3706ddf6e3bfd5a179tree
parent7ab9b4e44352b6c76bea25cec9de53501a8f2e7fcommit | diff
build: do not redefine _FORTIFY_SOURCE

When _FORTIFY_SOURCE is defined by the compiler or via flags, as
it is on Gentoo, do not override it.  Otherwise we get many
redefinition warnings.

* configure.ac (FORTIFY_SOURCE): Check if _FORTIFY_SOURCE is defined.
This addresses http://bugs.gnu.org/12714
configure.ac diff | blob | blame | history
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