diff --git a/posix.mak b/posix.mak
index 984ee2a5a..091a6e090 100644
--- a/posix.mak
+++ b/posix.mak
@@ -91,7 +91,7 @@ SRC_DOCUMENTABLES = index.d $(addsuffix .d,$(STD_MODULES) $(STD_NET_MODULES) $(S
 STDDOC = $(DOCSRC)/std.ddoc
 BIGSTDDOC = $(DOCSRC)/std_consolidated.ddoc
 # Set DDOC, the documentation generator
-DDOC=$(DMD) -m$(MODEL) -w -d -c -o- -version=StdDdoc \
+DDOC=$(DMD) -m$(MODEL) -w -c -o- -version=StdDdoc \
     -I$(DRUNTIME_PATH)/import $(DMDEXTRAFLAGS)
 
 # Set DRUNTIME name and full path
@@ -129,7 +129,7 @@ ifneq (,$(filter cc% gcc% clang% icc% egcc%, $(CC)))
 endif
 
 # Set DFLAGS
-DFLAGS=-I$(DRUNTIME_PATH)/import $(DMDEXTRAFLAGS) -w -d -m$(MODEL) $(PIC)
+DFLAGS=-I$(DRUNTIME_PATH)/import $(DMDEXTRAFLAGS) -w -m$(MODEL) $(PIC)
 ifeq ($(BUILD),debug)
 	DFLAGS += -g -debug
 else
diff --git a/win32.mak b/win32.mak
index a5a449524..5e85c342c 100644
--- a/win32.mak
+++ b/win32.mak
@@ -38,13 +38,13 @@ CFLAGS=-mn -6 -r
 
 ## Flags for dmd D compiler
 
-DFLAGS=-O -release -w -d
-#DFLAGS=-unittest -g -d
-#DFLAGS=-unittest -cov -g -d
+DFLAGS=-O -release -w
+#DFLAGS=-unittest -g
+#DFLAGS=-unittest -cov -g
 
 ## Flags for compiling unittests
 
-UDFLAGS=-O -w -d
+UDFLAGS=-O -w
 
 ## C compiler
 
@@ -426,7 +426,7 @@ cov : $(SRC_TO_COMPILE) $(LIB)
 	$(DMD) -cov=62 -unittest -main -run std\encoding.d
 	$(DMD) -cov=61 -unittest -main -run std\xml.d
 	$(DMD) -cov=79 -unittest -main -run std\random.d
-	$(DMD) -cov=92 -unittest -main -d -run std\exception.d
+	$(DMD) -cov=92 -unittest -main -run std\exception.d
 	$(DMD) -cov=73 -unittest -main -run std\concurrency.d
 	$(DMD) -cov=95 -unittest -main -run std\datetime.d
 	$(DMD) -cov=96 -unittest -main -run std\uuid.d
@@ -443,7 +443,7 @@ cov : $(SRC_TO_COMPILE) $(LIB)
 	$(DMD) -cov=53 -unittest -main -run std\socket.d
 	$(DMD) -cov=0  -unittest -main -run std\socketstream.d
 	$(DMD) -cov=88 -unittest -main -run std\container.d
-	$(DMD) -cov=90 -unittest -main -d -run std\conv.d
+	$(DMD) -cov=90 -unittest -main -run std\conv.d
 	$(DMD) -cov=0  -unittest -main -run std\zip.d
 	$(DMD) -cov=92 -unittest -main -run std\cstream.d
 	$(DMD) -cov=77 -unittest -main -run std\regex.d
@@ -650,7 +650,7 @@ $(DOC)\std_stdio.html : $(STDDOC) std\stdio.d
 	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_stdio.html $(STDDOC) std\stdio.d
 
 $(DOC)\std_stream.html : $(STDDOC) std\stream.d
-	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_stream.html -d $(STDDOC) std\stream.d
+	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_stream.html $(STDDOC) std\stream.d
 
 $(DOC)\std_string.html : $(STDDOC) std\string.d
 	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_string.html $(STDDOC) std\string.d
@@ -659,7 +659,7 @@ $(DOC)\std_system.html : $(STDDOC) std\system.d
 	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_system.html $(STDDOC) std\system.d
 
 $(DOC)\std_thread.html : $(STDDOC) $(DRUNTIME)\src\core\thread.d
-	$(DMD) -c -o- -d $(DDOCFLAGS) -Df$(DOC)\std_thread.html $(STDDOC) -I$(DRUNTIME)\src $(DRUNTIME)\src\core\thread.d
+	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_thread.html $(STDDOC) -I$(DRUNTIME)\src $(DRUNTIME)\src\core\thread.d
 
 $(DOC)\std_traits.html : $(STDDOC) std\traits.d
 	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_traits.html $(STDDOC) std\traits.d
diff --git a/win64.mak b/win64.mak
index 9f57efb48..6a0f427d0 100644
--- a/win64.mak
+++ b/win64.mak
@@ -37,13 +37,13 @@ CFLAGS=/O2 /nologo /I"$(VCDIR)\INCLUDE" /I"$(SDKDIR)\Include"
 
 ## Flags for dmd D compiler
 
-DFLAGS=-m$(MODEL) -O -release -w -d
-#DFLAGS=-m$(MODEL) -unittest -g -d
-#DFLAGS=-m$(MODEL) -unittest -cov -g -d
+DFLAGS=-m$(MODEL) -O -release -w
+#DFLAGS=-m$(MODEL) -unittest -g
+#DFLAGS=-m$(MODEL) -unittest -cov -g
 
 ## Flags for compiling unittests
 
-UDFLAGS=-g -m$(MODEL) -O -w -d
+UDFLAGS=-g -m$(MODEL) -O -w
 
 ## C compiler, linker, librarian
 
@@ -627,7 +627,7 @@ $(DOC)\std_stdio.html : $(STDDOC) std\stdio.d
 	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_stdio.html $(STDDOC) std\stdio.d
 
 $(DOC)\std_stream.html : $(STDDOC) std\stream.d
-	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_stream.html -d $(STDDOC) std\stream.d
+	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_stream.html $(STDDOC) std\stream.d
 
 $(DOC)\std_string.html : $(STDDOC) std\string.d
 	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_string.html $(STDDOC) std\string.d
@@ -636,7 +636,7 @@ $(DOC)\std_system.html : $(STDDOC) std\system.d
 	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_system.html $(STDDOC) std\system.d
 
 $(DOC)\std_thread.html : $(STDDOC) $(DRUNTIME)\src\core\thread.d
-	$(DMD) -c -o- -d $(DDOCFLAGS) -Df$(DOC)\std_thread.html $(STDDOC) -I$(DRUNTIME)\src $(DRUNTIME)\src\core\thread.d
+	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_thread.html $(STDDOC) -I$(DRUNTIME)\src $(DRUNTIME)\src\core\thread.d
 
 $(DOC)\std_traits.html : $(STDDOC) std\traits.d
 	$(DMD) -c -o- $(DDOCFLAGS) -Df$(DOC)\std_traits.html $(STDDOC) std\traits.d