See https://bugs.helixcommunity.org/show_bug.cgi?id=5641 -- particularly the
assignment to va_list (the references are uncommon enough that they probably
don't matter).
The world would be a better place if this kind of code would fail to build, or
at least _warn_, on i386. The ABI might not allow us to make va_list 'const'
but we could perhaps add an __attribute__((va_list)) which marks it for
'special' treatment?
This warning could perhaps be enabled by default on any platform which code is
expected to be portable (like Linux) but disabled on i386-only platforms
(win32).
--
Summary: non-portable va_list abuse is permitted on i386
Product: gcc
Version: 4.1.1
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dwmw2 at infradead dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30171
