antirez/redis — pull request #1456 by reflection (2013-12-09 18:23:42+00:00)
Title: Missing glibc 2.6 prereq for HAVE_ATOMIC dependency

We have an environment where GCC > 4.0.1 (4.1.2) but glibc < 2.6 (2.5) (I know, weird). Thus linking would fail because even though HAVE_ATOMIC was set to true, there is no 'sync_add_and_fetch' . The simple one-line change is to also require glibc 2.6.