Add a VALGRIND_EXTRA_ARGS makefile variable, with the obvious semantics.
tree35ea2c8916a95bf866b256f1e0e12c2579eeb629
-rw-r--r-- 9884 CMakeLists.txt
-rw-r--r-- 7967 CREDITS.TXT
-rw-r--r-- 3194 LICENSE.TXT
-rw-r--r-- 6369 Makefile
-rw-r--r-- 2706 Makefile.common
-rw-r--r-- 9826 Makefile.config.in
-rw-r--r-- 66554 Makefile.rules
-rw-r--r-- 126 ModuleInfo.txt
-rw-r--r-- 483 README.txt
drwxr-xr-x - Xcode
drwxr-xr-x - autoconf
drwxr-xr-x - bindings
-rwxr-xr-x 2272 build-for-llvm-top.sh
drwxr-xr-x - cmake
-rwxr-xr-x 1134734 configure
drwxr-xr-x - docs
drwxr-xr-x - examples
drwxr-xr-x - include
drwxr-xr-x - lib
-rw-r--r-- 1890 llvm.spec.in
drwxr-xr-x - projects
drwxr-xr-x - runtime
drwxr-xr-x - test
drwxr-xr-x - tools
drwxr-xr-x - unittests
drwxr-xr-x - utils
drwxr-xr-x - website
drwxr-xr-x - win32