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* configure.ac (_FORTIFY_SOURCE): Define only when optimizing.

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This ports to glibc 2.15 or later, when configured with
--enable-gcc-warnings.  See Eric Blake in
<http://lists.gnu.org/archive/html/bug-grep/2012-09/msg00000.html>.
This commit is contained in:
Paul Eggert 2012-09-01 11:54:38 -07:00
parent 78dd6ab198
commit 2d3800d2cf
2 changed files with 14 additions and 2 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2012-09-01 Paul Eggert <eggert@cs.ucla.edu>
* configure.ac (_FORTIFY_SOURCE): Define only when optimizing.
This ports to glibc 2.15 or later, when configured with
--enable-gcc-warnings. See Eric Blake in
<http://lists.gnu.org/archive/html/bug-grep/2012-09/msg00000.html>.
2012-09-01 Daniel Colascione <dan.colascione@gmail.com>
* configure.ac: Introduce term_header variable, which holds the

9
configure.ac
View file

@ -737,8 +737,13 @@ else
gl_WARN_ADD([-funit-at-a-time])
AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
AC_DEFINE([_FORTIFY_SOURCE], [2],
[enable compile-time and run-time bounds-checking, and some warnings])
AH_VERBATIM([FORTIFY_SOURCE],
[/* Enable compile-time and run-time bounds-checking, and some warnings,
without upsetting glibc 2.15+. */
#if defined __OPTIMIZE__ && __OPTIMIZE__
# define _FORTIFY_SOURCE 2
#endif
])
AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
# We use a slightly smaller set of warning options for lib/.