Add a configure test for detecting whether gcc supports atomic operations on
64-bit integers on 32-bit platforms. Apparently newer gcc versions support
this but older versions not. Thanks to Philippe Waroquiers for reporting this.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12309 a5019735-40e9-0310-863c-91ae7b9d1cf9
2 files changed