ci: use clang instead of gcc compiler

Clang has faster link time optimization by default, which will should save 10-20 seconds per CI run.
lewis6991 · Feb 28, 2023 · 76b71f7 · 76b71f7
1 parent 9aa7049
commit 76b71f7
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diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -7,6 +7,9 @@ on:
     branches: [ main ]
   workflow_dispatch:
 
+env:
+  CC: clang
+
 jobs:
   commit_lint:
     runs-on: ubuntu-latest

diff --git a/Makefile b/Makefile
@@ -23,11 +23,9 @@ LUAROCKS_INIT  := eval $$($(LUAROCKS) --tree $(LUAROCKS_TREE) path) &&
 $(NVIM_DIR):
 	@mkdir -p $(DEPS_DIR)
 	git clone --depth 1 https://github.com/neovim/neovim --branch $(NEOVIM_BRANCH) $@
-	@# disable LTO to reduce compile time
 	make -C $@ \
 		DEPS_BUILD_DIR=$(dir $(LUAROCKS_TREE)) \
-		CMAKE_BUILD_TYPE=RelWithDebInfo \
-		CMAKE_EXTRA_FLAGS=-DENABLE_LTO=OFF
+		CMAKE_BUILD_TYPE=RelWithDebInfo
 
 TL := $(LUAROCKS_TREE)/bin/tl