devel/ccls: Unbreak build with LLVM10

src/indexer.cc:683:50: error: only virtual member functions can be marked 'override'
                           ASTNodeInfo ast_node) override {
                                                 ^~~~~~~~~
1 error generated.

1 files changed, 22 insertions, 0 deletions

diff --git a/devel/ccls/files/patch-src_indexer.cc b/devel/ccls/files/patch-src_indexer.cc
new file mode 100644
index 000000000000..afac210fe60c
--- /dev/null
+++ b/devel/ccls/files/patch-src_indexer.cc
@@ -0,0 +1,22 @@
+https://github.com/MaskRay/ccls/commit/b0d42ad8f2ef22d3a42eee6e7534fc363c018440
+
+--- src/indexer.cc.orig	2019-10-25 01:37:55 UTC
++++ src/indexer.cc
+@@ -677,10 +677,13 @@ class IndexDataConsumer : public index::IndexDataConsu
+ public:
+   IndexDataConsumer(IndexParam &param) : param(param) {}
+   void initialize(ASTContext &ctx) override { this->ctx = param.ctx = &ctx; }
+-  bool handleDeclOccurence(const Decl *d, index::SymbolRoleSet roles,
+-                           ArrayRef<index::SymbolRelation> relations,
+-                           SourceLocation src_loc,
+-                           ASTNodeInfo ast_node) override {
++#if LLVM_VERSION_MAJOR < 10 // llvmorg-10-init-12036-g3b9715cb219
++# define handleDeclOccurrence handleDeclOccurence
++#endif
++  bool handleDeclOccurrence(const Decl *d, index::SymbolRoleSet roles,
++                            ArrayRef<index::SymbolRelation> relations,
++                            SourceLocation src_loc,
++                            ASTNodeInfo ast_node) override {
+     if (!param.no_linkage) {
+       if (auto *nd = dyn_cast<NamedDecl>(d); nd && nd->hasLinkage())
+         ;