Add CI to build with clang on Windows

Author: MarijnS95

.github/workflows/ci.yaml

@@ -0,0 +1,13 @@
+on:
+  - push
+
+jobs:
+  build:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      # Also enable GKREGEX, because building with Ninja does not count as MSVC hence it doesn't get enabled by default
+      - run:  cmake -Bbuild -GNinja -DCMAKE_C_COMPILER=clang -DGKREGEX=ON
+          # -DCMAKE_CXX_COMPILER=clang++
+      - run:  cmake --build build
+

Makefile

@@ -62,12 +62,11 @@ ifneq ($(cputype), x86_64)
 endif
 
 define run-config
-mkdir -p $(BUILDDIR)
-cd $(BUILDDIR) && cmake $(CURDIR) $(CONFIG_FLAGS)
+cmake $(CURDIR) -B"$(BUILDDIR)" $(CONFIG_FLAGS)
 endef
 
 all clean install: $(BUILDDIR)
-	make -C $(BUILDDIR) $@
+	make --build $(BUILDDIR) $@
 
 uninstall:
 	 xargs rm < $(BUILDDIR)/install_manifest.txt