Build debug with mvsc

.github/workflows/build-unoptimized.yml

@@ -40,7 +40,8 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v4
-      # TODO: build using MSVC. It currently errors and warns on a whole bunch of stuff
-      # Also yes, that requires either shenanigans or a seperate action. - uses: ilammy/msvc-dev-cmd@v1
+      # Build using MSVC. It currently warns on a bit of stuff because apparently -Wall warns on basically everything
+      # Also yes, using mvsc requires either shenanigans or a seperate action.
+      - uses: ilammy/msvc-dev-cmd@v1
       - name: Make target ${{ matrix.target }}
-        run:  $env:TARGET='${{ matrix.target }}'; make
+        run:  $env:CXX='cl.exe'; $env:TARGET='${{ matrix.target }}'; make

Makefile

@@ -3,7 +3,10 @@
 SRCDIR := $(abspath $(patsubst %/,%,$(dir $(abspath $(lastword $(MAKEFILE_LIST))))))
 
 CFLAGS_gtk = -DFLIPS_GTK $(GTKFLAGS) $(GTKLIBS)
-CFLAGS_windows := -DFLIPS_WINDOWS -mwindows -lgdi32 -lcomdlg32 -lcomctl32 -luser32 -lkernel32 -lshell32 -ladvapi32
+CFLAGS_windows_base := -DFLIPS_WINDOWS
+CFLAGS_windows_gcc := -mwindows -lgdi32 -lcomdlg32 -lcomctl32 -luser32 -lkernel32 -lshell32 -ladvapi32
+CFLAGS_windows := $(CFLAGS_windows_base) $(CFLAGS_windows_gcc)
+LFLAGS_windows_msvc := gdi32.lib comdlg32.lib comctl32.lib user32.lib kernel32.lib shell32.lib advapi32.lib
 CFLAGS_cli := -DFLIPS_CLI
 
 CFLAGS_G = -fno-rtti -fno-exceptions -DNDEBUG -Wall
@@ -52,6 +55,14 @@ ifeq ($(TARGET),)
   endif
 endif
 
+ifeq ($(TARGET),windows)
+  ifneq (,$(filter $(CXX),cl cl.exe))
+    override CFLAGS_windows := $(CFLAGS_windows_base)
+    LFLAGS += $(LFLAGS_windows_msvc)
+  endif
+
+endif
+
 ifeq ($(TARGET),gtk)
   ifeq ($(GTKFLAGS),)
     GTKFLAGS := $(shell pkg-config --cflags --libs gtk+-3.0)