Update LLVM installed version

.github/workflows/ci.yml

@@ -52,7 +52,10 @@ jobs:
       - uses: actions/setup-python@v3
       - name: Install LLVM
         run: |
-          sudo apt-get install -q -y llvm
+          sudo add-apt-repository -y 'deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-18 main'
+          wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
+          sudo apt-get update
+          sudo apt-get install -q -y llvm-18 lld-18 llvm-18-runtime
       - name: Install QBE
         run: scripts/install-qbe.sh
       - name: Install cxxopts

Makefile

@@ -2,9 +2,9 @@ TARGET := vitaminc
 CXX := g++
 CC = $(CXX)
 CLANG_TIDY ?= clang-tidy
-CXXFLAGS = -g3 -std=c++17 -Wall -MMD -Iinclude -I$(shell llvm-config --includedir) -Werror
+CXXFLAGS = -g3 -std=c++17 -Wall -MMD -Iinclude -I$(shell llvm-config-18 --includedir) -Werror
 CFLAGS = $(CXXFLAGS)
-LDLIBS = -lfmt $(shell llvm-config --libs core)
+LDLIBS = -lfmt $(shell llvm-config-18 --libs core)
 LEX = lex
 # C++ features are used, yacc doesn't suffice
 YACC = bison