diff -r 000000000000 -r 6474c204b198 browser/config/mozconfigs/linux32/valgrind
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/config/mozconfigs/linux32/valgrind	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+no_tooltool=1
+no_sccache=1
+
+. $topsrcdir/browser/config/mozconfigs/linux32/nightly
+
+ac_add_options --enable-valgrind
+ac_add_options --disable-jemalloc
+ac_add_options --disable-elf-hack
+ac_add_options --enable-optimize="-g -O -freorder-blocks"
+ac_add_options --disable-install-strip
+
+# Include the override mozconfig again (even though the above includes it)
+# since it's supposed to override everything.
+. "$topsrcdir/build/mozconfig.common.override"