+2014-11-14 Paul Eggert <eggert@cs.ucla.edu>
+
+ build: port to GCC 4.6.4 + glibc 2.5
+ On platforms this old, building with _FORTIFY_SOURCE equal to 2
+ results in duplicate definitions of standard library functions.
+ Problem reported by Nelson H. F. Beebe.
+ * configure.ac (_FORTIFY_SOURCE): Sort after GNULIB_PORTCHECK.
+ By default, do not enable this unless GNULIB_PORTCHECK is defined.
+ This better matches the original intent, which as I recall was to
+ enable these extra checks only with --enable-gcc-warnings.
+
2014-11-14 David Reitter <david.reitter@gmail.com>
* Makefile.in (install-arch-indep): Compress publicsuffix.txt file.
fi
AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
- AH_VERBATIM([FORTIFY_SOURCE],
+ AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
+ AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
[/* Enable compile-time and run-time bounds-checking, and some warnings,
without upsetting glibc 2.15+. */
- #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
+ #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
+ && 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/.
# Remove the following and save the result in GNULIB_WARN_CFLAGS.