build.d: Add unittest to auto-tester-build

Author: MoonlightSentinel

src/build.d

@@ -226,6 +226,13 @@ alias autoTesterBuild = makeDep!((builder, dep) {
 
     version (Posix)
         dep.deps ~= runCxxUnittest;
+
+    // unittests are currently not executed as part of `auto-tester-test` on windows
+    // because changes to `win32.mak` require additional changes on the autotester
+    // (see https://github.com/dlang/dmd/pull/7414).
+    // This requires no further actions and avoids building druntime+phobos on unittest failure
+    version (Windows)
+        dep.deps ~= runDmdUnittest;
 });
 
 /// Returns: the dependency that builds the lexer object file

src/win32.mak

@@ -194,8 +194,11 @@ RUN_BUILD=$(GEN)\build.exe --called-from-make "OS=$(OS)" "BUILD=$(BUILD)" "MODEL
 
 defaulttarget: $G debdmd
 
+# FIXME: Windows test suite uses src/dmd.exe instead of $(GENERATED)/dmd.exe
+# FIXME: DDEBUG needs to be overidden to exclude unittests from dmd.exe
+#        (They are compiled in a seperate executable for build.d's unittest target)
 auto-tester-build: $(GEN)\build.exe
-	$(RUN_BUILD) "DDEBUG=" "ENABLE_RELEASE=1" $@
+	$(RUN_BUILD) "DDEBUG=" $@
 	copy $(TARGETEXE) .
 
 dmd: $G reldmd