diff -Naur gnuplot-5.2.0.orig/config/mingw/Makefile gnuplot-5.2.0/config/mingw/Makefile
--- gnuplot-5.2.0.orig/config/mingw/Makefile	2017-07-31 04:02:24.000000000 +0200
+++ gnuplot-5.2.0/config/mingw/Makefile	2017-09-10 18:36:11.300817700 +0200
@@ -236,8 +236,8 @@
 
 ifndef TARGET
 TARGET=wgnuplot.exe
-#TARGET=wgnuplot_pipes.exe
-#TARGET=gnuplot.exe
+TARGET=wgnuplot_pipes.exe
+TARGET=gnuplot.exe
 endif
 
 # Set PIPES and CONSOLE according to the target
@@ -571,7 +571,7 @@
 	$(MAKE) TARGET=gnuplot.exe gnuplot.pdf tutorial.pdf \
 		ps_symbols.pdf ps_fontfile_doc.pdf ps_guide.pdf
 
-support: $(HELPFILE) $(M)bf_test.exe $(QT_TARGET) $(QT_TRANSLATION) demo_plugin.dll $(LUATARGETS) $(HELPFILEJA)
+support:  $(QT_TARGET) $(QT_TRANSLATION) $(LUATARGETS) 
 
 ja: $(HELPFILEJA)
 
@@ -598,8 +598,8 @@
 	$(CC) -c $(CFLAGS) $(CFLAGSEXTRA) -MMD -MT '$*.$$(O)' -MF $*.d -o $@ $<
 
 LDLIBS = -lkernel32 -lgdi32 -lwinspool -lcomdlg32 -lcomctl32 -ladvapi32 -lshell32 -lmsimg32 -lgdiplus -lshlwapi -ld2d1 -ldwrite -lole32
-LDLIBS += -lhtmlhelp
-LDFLAGS2 += -L$(HHWPATH)lib
+#LDLIBS += -lhtmlhelp
+#LDFLAGS2 += -L$(HHWPATH)lib
 ifdef MINGW64
 LDFLAGS2 += -L.
 endif
@@ -717,24 +717,24 @@
 	$(CC) $(CFLAGS) -I$(M)plugin -shared -o $@ $<
 
 # convert gnuplot.doc to windows/wgnuplot.html
-$(BUILDHELPFILE): doc2html.exe $(D)gnuplot.doc $(D)windows/wgnuplot.hhp $(D)windows/wgnuplot.hhk \
-                  $(D)windows/wgnuplot.stp $(D)plotstyles.gnu $(CORETERM)
-	./doc2html $(D)gnuplot.doc $(D)windows/
-	-./$(TARGET) -d -e "winhelp=1; cd '$(D)'" plotstyles.gnu
-	-$(HHC) $(D)windows/wgnuplot.hhp
-
-$(HELPFILE): $(BUILDHELPFILE)
-	$(CP) $^ $@
-
-htmlhelp.lib: htmlhelp.def
-	dlltool -d htmlhelp.def -l htmlhelp.lib
-
-htmlhelp.def:
-ifndef MINGW64
-	pexports c/Windows/System32/hhctrl.ocx > htmlhelp.def
-else
-	gendef - /c/Windows/System32/hhctrl.ocx > htmlhelp.def
-endif
+#$(BUILDHELPFILE): doc2html.exe $(D)gnuplot.doc $(D)windows/wgnuplot.hhp $(D)windows/wgnuplot.hhk \
+#                  $(D)windows/wgnuplot.stp $(D)plotstyles.gnu $(CORETERM)
+#	./doc2html $(D)gnuplot.doc $(D)windows/
+#	-./$(TARGET) -d -e "winhelp=1; cd '$(D)'" plotstyles.gnu
+#	-$(HHC) $(D)windows/wgnuplot.hhp
+#
+#$(HELPFILE): $(BUILDHELPFILE)
+#	$(CP) $^ $@
+#
+#htmlhelp.lib: htmlhelp.def
+#	dlltool -d htmlhelp.def -l htmlhelp.lib
+
+#htmlhelp.def:
+#ifndef MINGW64
+#	pexports c/Windows/System32/hhctrl.ocx > htmlhelp.def
+#else
+#	gendef - /c/Windows/System32/hhctrl.ocx > htmlhelp.def
+#endif
 
 # Working directory for patched Japanese sources 
 JA = ja/
@@ -973,9 +973,9 @@
 	cp -p wgnuplot_pipes.exe $(DESTDIR)/bin/
 	cp -p $(W)/wgnuplot.mnu $(DESTDIR)/bin/
 	cp -p $(W)/wgnuplot-ja.mnu $(DESTDIR)/bin/
-	cp -p $(HELPFILE) $(DESTDIR)/bin/
+	#cp -p $(HELPFILE) $(DESTDIR)/bin/
 ifdef HELPFILEJA
-	cp -p $(HELPFILEJA) $(DESTDIR)/bin/
+	#cp -p $(HELPFILEJA) $(DESTDIR)/bin/
 endif
 # configuration files
 	mkdir -p $(DESTDIR)/$(GNUPLOT_SHARE_DIR)
@@ -1037,12 +1037,12 @@
 	cp -p $(TOP)/FAQ.pdf $(DESTDIR)/docs/
 	-cp -p tutorial.pdf $(DESTDIR)/docs/
 	mkdir -p $(DESTDIR)/docs/psdoc
-	cp -p $(D)psdoc/ps_file.doc $(DESTDIR)/docs/psdoc/ps_file_doc.txt
-	cp -p $(D)psdoc/ps_guide.ps $(DESTDIR)/docs/psdoc/
-	-cp -p ps_guide.pdf $(DESTDIR)/docs/psdoc/
-	-cp -p ps_symbols.ps $(DESTDIR)/docs/psdoc/
-	-cp -p ps_symbols.pdf $(DESTDIR)/docs/psdoc/
-	-cp -p ps_fontfile_doc.pdf $(DESTDIR)/docs/psdoc/
+	#cp -p $(D)psdoc/ps_file.doc $(DESTDIR)/docs/psdoc/ps_file_doc.txt
+	#cp -p $(D)psdoc/ps_guide.ps $(DESTDIR)/docs/psdoc/
+	#-cp -p ps_guide.pdf $(DESTDIR)/docs/psdoc/
+	#-cp -p ps_symbols.ps $(DESTDIR)/docs/psdoc/
+	#-cp -p ps_symbols.pdf $(DESTDIR)/docs/psdoc/
+	#-cp -p ps_fontfile_doc.pdf $(DESTDIR)/docs/psdoc/
 # runtime libraries, configuration files etc.
 ifdef EXTRADIST
 	cp -pR $(EXTRADIST)/* $(DESTDIR)/
diff -Naur gnuplot-5.2.0.orig/src/command.c gnuplot-5.2.0/src/command.c
--- gnuplot-5.2.0.orig/src/command.c	2017-08-30 20:48:26.000000000 +0200
+++ gnuplot-5.2.0/src/command.c	2017-09-10 18:33:08.422397000 +0200
@@ -129,7 +129,7 @@
 # else
 #  include <alloc.h>
 # endif				/* !MSC */
-# include <htmlhelp.h>
+//# include <htmlhelp.h>
 # include "win/winmain.h"
 #endif /* _Windows */
 
@@ -2857,7 +2857,7 @@
 
 
 #ifdef NO_GIH
-#if defined(_Windows)
+#if defined(_Windows) && !defined (__MINGW32__)
 void
 help_command()
 {
diff -Naur gnuplot-5.2.0.orig/src/win/winmain.c gnuplot-5.2.0/src/win/winmain.c
--- gnuplot-5.2.0.orig/src/win/winmain.c	2017-07-30 18:44:02.000000000 +0200
+++ gnuplot-5.2.0/src/win/winmain.c	2017-09-10 18:29:06.999408000 +0200
@@ -56,7 +56,7 @@
 #include <commctrl.h>
 #include <shlobj.h>
 #include <shlwapi.h>
-#include <htmlhelp.h>
+//#include <htmlhelp.h>
 #include <dos.h>
 #include <stdio.h>
 #include <stdlib.h>