gnu: llvm-3.7, llvm-3.8: Fix build with gcc.

* gnu/packages/patches/clang-runtime-3.7-fix-build-with-python3.patch,
gnu/packages/patches/llvm-3.x.1-fix-build-with-gcc.patch: New files.
* gnu/packages/llvm.scm (clang-runtime-3.7, llvm-3.7, llvm-3.8): Use patches.
* gnu/local.mk: Register patches.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/gnu/packages/patches/llvm-3.x.1-fix-build-with-gcc.patch b/gnu/packages/patches/llvm-3.x.1-fix-build-with-gcc.patch
new file mode 100644
index 0000000000..75236c4069
--- /dev/null
+++ b/gnu/packages/patches/llvm-3.x.1-fix-build-with-gcc.patch
@@ -0,0 +1,15 @@
+Patch from https://github.com/digego/extempore/issues/318
+
+diff --git a/include/llvm/IR/ValueMap.h.orig b/include/llvm/IR/ValueMap.h
+index ad518ac..d928f6a 100644
+--- a/include/llvm/IR/ValueMap.h
++++ b/include/llvm/IR/ValueMap.h
+@@ -99,7 +99,7 @@
+   explicit ValueMap(const ExtraData &Data, unsigned NumInitBuckets = 64)
+       : Map(NumInitBuckets), Data(Data) {}
+ 
+-  bool hasMD() const { return MDMap; }
++  bool hasMD() const { return static_cast<bool>(MDMap); }
+   MDMapT &MD() {
+     if (!MDMap)
+       MDMap.reset(new MDMapT);