On 10/18/2010 01:53 PM, Pádraig Brady wrote:
On 17/10/10 20:58, Bruno Haible wrote:
+/* When, on glibc systems, -D_FORTIFY_SOURCE=1 or -D_FORTIFY_SOURCE=2 is used,
+ enable extra bounds checking, based on the object bounds analysis done by
+ GCC.
+ The user can disable this bounds checking by defining _GL_NO_FORTIFY.
+ __attribute__ __warning__ requires GCC>= 4.3.
+ __builtin_object_size requires GCC>= 4.1.
+ __always_inline__ requires GCC>= 3.2. */
+#if __USE_FORTIFY_LEVEL> 0&& !defined _GL_NO_FORTIFY&& __GNUC_PREREQ (4, 3)
How about adding support for older compilers as follows.
This might also be a stepping stone for people trying
to understand the more thorough version?
I don't think it's worthwhile, honestly. Maybe it is worthwhile however
to enable the checks for 4.1 with the sole exception of the link-time
warning. For 4.1 and 4.2, leave out the aliasing of inttostr_chk_warn
so that it remains undefined and linking fails.
Paolo
