Add separate patch files for all the customizations we have currently

applied to our copy of llvm/clang.  These can be applied in alphabetical
order to a pristine llvm/clang 3.4 release source tree, to result in the
same version used in FreeBSD.

This is intended to clearly document all the changes until now, which
mostly consist of cherry pickings from the respective upstream trunks,
plus a number of hand-written FreeBSD-specific ones.  Hopefully those
can eventually be cleaned up and sent upstream too.

MFC after:	1 week
X-MFC-With:	r263313

1 files changed, 22 insertions, 0 deletions

diff --git a/contrib/llvm/patches/patch-r209107-clang-vendor-suffix.diff b/contrib/llvm/patches/patch-r209107-clang-vendor-suffix.diff
new file mode 100644
index 0000000..d761f78
--- /dev/null
+++ b/contrib/llvm/patches/patch-r209107-clang-vendor-suffix.diff
@@ -0,0 +1,22 @@
+This patch adds a FreeBSD-specific suffix to clang's version string.  This is
+usually of the form "(yyyyddmm)", representing the date when the compiler was
+last updated.
+
+Introduced here: http://svn.freebsd.org/changeset/base/209107
+
+Index: tools/clang/lib/Basic/Version.cpp
+===================================================================
+--- tools/clang/lib/Basic/Version.cpp
++++ tools/clang/lib/Basic/Version.cpp
+@@ -124,8 +124,10 @@ std::string getClangFullVersion() {
+   OS << "clang version " CLANG_VERSION_STRING " "
+      << getClangFullRepositoryVersion();
+ 
++#ifdef CLANG_VENDOR_SUFFIX
++  OS << CLANG_VENDOR_SUFFIX;
++#elif defined(CLANG_VENDOR)
+   // If vendor supplied, include the base LLVM version as well.
+-#ifdef CLANG_VENDOR
+   OS << " (based on LLVM " << PACKAGE_VERSION << ")";
+ #endif
+