support use of git submodules with the Makefiles

git=1 when invoking make will use the submodule submodules/lua.

On windows, it will also use the submodule submodules/pdcurses.

doc/fixes3-7-0.txt

@@ -1611,4 +1611,5 @@ map_glyphinfo() now simply references an internal array that maps each unique
 added MG_MALE glyphflag to complement the MG_FEMALE glyphflag that was there
 remove obsolete roles[].femalenum and rename roles[].malenum to roles[].mnum;
 	likewise for races[]
-
+add git submodule support to the Makefiles by specifying git=1 or GIT=1 on the
+	make command

sys/unix/Makefile.top

@@ -104,7 +104,13 @@ DATNODLB = $(VARDATND) license symbols
 DATDLB = $(DATHELP) dungeon.lua tribute $(SPEC_LEVS) $(QUEST_LEVS) $(VARDATD)
 DAT = $(DATNODLB) $(DATDLB)
 
+LUAHEADERS = lib/lua-$(LUA_VERSION)/src
+LUATESTTARGET = $(LUAHEADERS)/lua.h
+LUATOP = $(LUAHEADERS)
+LUAMAKEFLAGS = CC='$(CC)' SYSCFLAGS='$(SYSCFLAGS)'
+LUA2NHTOP = ../../..
 TOPLUALIB = lib/lua/liblua.a
+
 ALLDEP = $(GAME) recover Guidebook $(VARDAT) spec_levs check-dlb
 
 # first target is also the default target for 'make' without any arguments
@@ -117,23 +123,28 @@ $(GAME): lua_support
 
 lua_support: $(TOPLUALIB) include/nhlua.h
 	@true
-lib/lua-$(LUA_VERSION)/src/liblua.a: lib/lua-$(LUA_VERSION)/src/lua.h
+$(LUATOP)/liblua.a: $(LUAHEADERS)/lua.h
-	( cd lib/lua-$(LUA_VERSION)/src \
+	( cd $(LUATOP) \
-	  && make CC='$(CC)' SYSCFLAGS='$(SYSCFLAGS)' a && cd ../../.. )
+	  && make $(LUAMAKEFLAGS) a && cd $(LUA2NHTOP) )
-lib/lua/liblua.a: lib/lua-$(LUA_VERSION)/src/liblua.a
+lib/lua/liblua.a: $(LUATOP)/liblua.a
 	@( if test -d lib/lua ; then true ; else mkdir -p lib/lua ; fi )
-	cp lib/lua-$(LUA_VERSION)/src/liblua.a $@
+	cp $(LUATOP)/liblua.a $@
 include/nhlua.h: $(TOPLUALIB)
 	echo '/* nhlua.h - generated by top Makefile */' > $@
-	@echo '#include "../lib/lua-$(LUA_VERSION)/src/lua.h"' >> $@
+	@echo '#include "../$(LUAHEADERS)/lua.h"' >> $@
 	@sed -e '/(lua_error)/!d' -e '/(lua_error)/s/;/ NORETURN;/1' \
-		< lib/lua-$(LUA_VERSION)/src/lua.h >> $@
+		< $(LUAHEADERS)/lua.h >> $@
-	@echo '#include "../lib/lua-$(LUA_VERSION)/src/lualib.h"' >> $@
+	@echo '#include "../$(LUAHEADERS)/lualib.h"' >> $@
-	@echo '#include "../lib/lua-$(LUA_VERSION)/src/lauxlib.h"' >> $@
+	@echo '#include "../$(LUAHEADERS)/lauxlib.h"' >> $@
 	@echo '/*nhlua.h*/' >> $@
+# LUATESTTARGET is this by default
 lib/lua-$(LUA_VERSION)/src/lua.h:
 	@echo "Please do 'make fetch-lua' to obtain lua-$(LUA_VERSION)"
 	@false
+# hints file could set LUATESTTARGET to this if GITSUBMODULES is defined
+submodules/lua/lua.h:
+	git submodule init submodules/lua
+	git submodule update --remote submodules/lua
 
 # Note: many of the dependencies below are here to allow parallel make
 # to generate valid output
@@ -339,7 +350,7 @@ clean: clean-lib clean-keep-lib
 	@true
 
 clean-lib:
-	-( cd lib/lua-$(LUA_VERSION)/src && $(MAKE) clean )
+	-( cd $(LUATOP) && $(MAKE) clean )
 
 clean-keep-lib:
 	( cd src ; $(MAKE) clean )

sys/unix/hints/linux.370

@@ -68,6 +68,17 @@ GAMEGRP  = games
 # you're reading this in Makefile augmented by hints, that may not be true).
 #
 
+ifeq "$(GIT)" "1"
+ifndef GITSUBMODULES
+GITSUBMODULES=1
+endif
+endif
+ifeq "$(git)" "1"
+ifndef GITSUBMODULES
+GITSUBMODULES=1
+endif
+endif
+
 #-INCLUDE multiw-2.370
 
 # compiler.370 contains compiler detection and adjustments common
@@ -237,10 +248,21 @@ POSTINSTALL+= sed -i -e 's;^GDBPATH=/usr/bin/gdb;\#GDBPATH=/usr/bin/gdb;' \
 		-e 's;PANICTRACE_GDB=1;PANICTRACE_GDB=0;' $(INSTDIR)/sysconf;
 endif
 
+# Lua
 # when building liblua.a, avoid warning that use of tmpnam() should be
 # replaced by mkstemp(); the lua code doesn't use nethack's config.h so
 # this needs to be passed via make rather than defined in unixconf.h
-SYSCFLAGS=-DLUA_USE_POSIX
+SYSCFLAGS=-DLUA_USE_LINUX
+ifdef GITSUBMODULES
+LUAFLAGS=CC='$(CC)' SYSCFLAGS='$(SYSCFLAGS)'
+ifneq "$(CCISCLANG)" ""
+# clang
+LUAFLAGS +=CWARNGCC=''
+endif   # clang
+override LUAHEADERS = submodules/lua
+override LUA2NHTOP = ../..
+override LUAMAKEFLAGS=$(LUAFLAGS)
+endif   # GITSUBMODULES
 
 # Only needed for GLIBC stack trace:
 LFLAGS=-rdynamic

sys/unix/hints/macOS.370

@@ -68,6 +68,17 @@ endif
 # you're reading this in Makefile augmented by hints, that may not be true).
 #
 
+ifeq "$(GIT)" "1"
+ifndef GITSUBMODULES
+GITSUBMODULES=1
+endif
+endif
+ifeq "$(git)" "1"
+ifndef GITSUBMODULES
+GITSUBMODULES=1
+endif
+endif
+
 #-INCLUDE multiw-2.370
 
 # compiler.370 contains compiler detection and adjustments common
@@ -194,6 +205,22 @@ override GAME=
 MOREALL += ( cd src ; $(MAKE) pregame ; $(MAKE) $(TARGETPFX)libnh.a )
 endif  # WANT_LIBNH
 
+# Lua
+# when building liblua.a, avoid warning that use of tmpnam() should be
+# replaced by mkstemp(); the lua code doesn't use nethack's config.h so
+# this needs to be passed via make rather than defined in unixconf.h
+SYSCFLAGS=-DLUA_USE_MACOSX
+ifdef GITSUBMODULES
+LUAFLAGS=CC='$(CC)' SYSCFLAGS='$(SYSCFLAGS)'
+ifneq "$(CCISCLANG)" ""
+# clang
+LUAFLAGS +=CWARNGCC=''
+endif   # clang
+override LUAHEADERS = submodules/lua
+override LUA2NHTOP = ../..
+override LUAMAKEFLAGS=$(LUAFLAGS)
+endif   # GITSUBMODULES
+
 WANT_BUNDLE=1
 ifdef WANT_SHARE_INSTALL
 # if $GAMEUID is root, we install into roughly proper Mac locations, otherwise

sys/windows/Makefile.mingw32

@@ -45,30 +45,19 @@ DEBUGINFO = N
 
 #
 #---------------------------------------------------------------
-# Location of pdcurses
+# Do you have a connection to the internet available that you want
+# to utilize for obtaining prerequisite Lua source code and pdcurses source code
 #
-# NetHack obtained via git clone (default)
-PDCURSES_TOP = ../submodules/pdcurses
 
-# NetHack sources obtained by zip file download
+INTERNET_AVAILABLE = N
-#PDCURSES_TOP = ../lib/pdcurses
+
 #
 #---------------------------------------------------------------
-# Location of LUA on this machine
+# Do you have git commands available and NetHack in a git repository?
 #
-# Original Lua source can be obtained from:
-#    http://www.lua.org/ftp/lua-5.4.4.tar.gz
-#
-#    This build assumes that the LUA sources are located
-#    at the specified location. If they are actually elsewhere
-#    you'll need to specify the correct spot below in order to
-#    successfully build NetHack-3.7.
-#
-# NetHack obtained via git clone (default)
-LUATOP = ../submodules/lua
 
-# NetHack sources obtained by zip file download (see Install.windows)
+GIT_AVAILABLE = N
-#LUATOP = ../lib/lua-5.4.4
+
 #
 #===============================================
 #======= End of Modification Section ===========
@@ -85,7 +74,6 @@ LUATOP = ../submodules/lua
 SKIP_NETHACKW = N
 USE_LUADLL = Y
 WANT_LUAC = N
-ADD_CURSES=Y
 
 ifndef LUA_VERSION
 LUAVER=5.4.4
@@ -93,6 +81,106 @@ else
 LUAVER=$(LUA_VERSION)
 endif
 
+# if GIT=1 is passed on the make command, allow use of git and internet
+if "$(GIT)" "1"
+INTERNET_AVAILABLE=Y
+GIT_AVAILABLE=Y
+endif
+if "$(git)" "1"
+INTERNET_AVAILABLE=Y
+GIT_AVAILABLE=Y
+endif
+
+#
+#==============================================================================
+# Sanity checks for prerequisite Lua and pdcurses
+#
+LUA_MAY_PROCEED=N
+ADD_CURSES=N
+
+# First, Lua
+ifeq "$(INTERNET_AVAILABLE)" "Y"
+ifeq "$(GIT_AVAILABLE)" "Y"
+LUATOP=../submodules/lua
+LUASRC=$(LUATOP)
+LUA_MAY_PROCEED=Y
+else    # GIT_AVAILABLE
+LUATOP = ../lib/lua-$(LUAVER)
+LUASRC = $(LUATOP)/src
+LUA_MAY_PROCEED=Y
+endif   # GIT_AVAILABLE
+else    # INTERNET_AVAILABLE not
+# The internet is not available for obtaining Lua using either
+# method (git or download). Check to see if it is available already, with
+# precedence given to ../submodules, then ../lib.
+#
+ifneq ("$(wildcard ../submodules/lua/lua.h)", "")
+$(info Here- ../submodules/lua/lua.h)
+LUATOP=../submodules/lua
+LUASRC=$(LUATOP)
+LUA_MAY_PROCEED=Y
+else ifneq ("$(wildcard ../lib/lua-$(LUAVER)/src/lua.h)", "")
+$(info Here- ../lib/lua-$(LUAVER)/src/lua.h)
+LUATOP = ../lib/lua-$(LUAVER)
+LUASRC = $(LUATOP)/src
+LUA_MAY_PROCEED=Y
+else
+$(info NO MATCH)
+endif   # Lua sources
+ifeq "$(LUA_MAY_PROCEED)" "Y"
+$(info No internet connection was authorized in the Makefile,)
+$(info but a copy of lua-$(LUAVER) was found in $(LUASRC), so that will be used.)
+endif  # LUA_MAY_PROCEED
+endif  # INTERNET_AVAILABLE
+
+ifneq "$(LUA_MAY_PROCEED)" "Y"
+ifneq "$(INTERNET_AVAILABLE)" "Y"
+$(info Your Makefile settings do not allow use of the internet to obtain Lua)
+endif  # INTERNET_AVAILABLE
+$(info and no copy of Lua was found in either ../submodules/lua or ../lib/lua-$(LUAVER).)
+$(info Change youf make command line to include:)
+$(info     GIT=1)
+$(info or modify your Makefile to set the following:)
+$(info     INTERNET_AVAILABLE=Y)
+$(info     GIT_AVAILABLE=Y)
+$(error Stopping because NetHack 3.7 requires Lua for its build.)
+endif  # LUA_MAY_PROCEED
+
+# Now, pdcurses
+ifeq "$(INTERNET_AVAILABLE)" "Y"
+ifeq "$(GIT_AVAILABLE)" "Y"
+PDCURSES_TOP=../submodules/pdcurses
+ADD_CURSES=Y
+else  # GIT_AVAILABLE
+PDCURSES_TOP=../lib/pdcurses
+ADD_CURSES=Y
+endif  # GIT_AVAILABLE
+else   # INTERNET_AVAILABLE is not Y below
+# Your Makefile settings to not allow pdcurses to be obtained by
+# git or by download). Check to see if it is available at one of
+# the expected locations already, with precedence given to ../submodules,
+# then ../lib.
+#
+
+ifeq (,$(wildcard ../submodules/pdcurses/curses.h))
+PDCURSES_TOP=../submodules/pdcurses
+ADD_CURSES=Y
+else ifeq (,$(wildcard ../lib/pdcurses/curses.h))
+PDCURSES_TOP=../lib/pdcurses
+ADD_CURSES=Y
+endif  # pdcurses sources available somewhere
+
+ifeq "$(ADD_CURSES)" "Y"
+$(info Your Makefile settings do not allow pdcurses to be obtained by)
+$(info git or by download, but a copy of pdcurses was found in $(PDCURSES_TOP),)
+$(info so that will be used.)
+endif  # ADD_CURSES == Y
+endif  # INTERNET_AVAILABLE
+
+ifneq "$(ADD_CURSES)" "Y"
+$(info NetHack 3.7 will be built without support for the curses window-port.)
+endif
+
 #==============================================================================
 
 #  The version of the game this Makefile was designed for
@@ -219,7 +307,6 @@ CLEAN_DIR = $(GAMEDIR) $(OBJ)
 #=================================================================
 
 OLUA = $(O)lua
-LUASRC = $(LUATOP)
 LUAOBJS = $(addprefix $(OLUA)/, $(addsuffix .o, lapi lauxlib lbaselib lcode lcorolib lctype \
 	  ldblib ldebug ldo ldump lfunc lgc linit liolib llex lmathlib lmem \
 	  loadlib lobject lopcodes loslib lparser lstate lstring lstrlib ltable ltablib ltm \
@@ -275,7 +362,7 @@ CLEAN_FILE += $(LUATARGETS) $(LUAOBJS) $(OLUA)/lua.o $(OLUA)/luac.o
 NHLUAH = $(INCL)/nhlua.h
 
 $(NHLUAH):
-	echo "/* nhlua.h - generated by top Makefile */" > $@
+	echo "/* nhlua.h - generated by Makefile.mingw32 */" > $@
 	@echo "#include \"$(LUASRC)/lua.h\"" >> $@
 	@echo "LUA_API int (lua_error) (lua_State *L) NORETURN;" >>$@
 	@echo "#include \"$(LUASRC)/lualib.h\"" >> $@
@@ -346,6 +433,7 @@ PDCSRC = $(PDCURSES_TOP)/pdcurses
 PDCWINCON = $(PDCURSES_TOP)/wincon
 PDCINCL = -I$(PDCURSES_TOP) -I$(PDCSRC) -I$(PDCWINCON)
 PDCLIB = $(O)pdcurses.a
+PDCDEP = $(PDCURSES_TOP)/curses.h
 
 pdcurses: $(PDCLIB)
 
@@ -575,6 +663,52 @@ $(DLB): $(U)dlb.exe $(DLBLST) | $(GAMEDIR)
 CLEAN_DIR += $(ODLB)
 CLEAN_FILE += $(DTARGETS) $(DLBOBJS) $(INCL)/date.h
 
+#==========================================
+# Fetching other sources
+#==========================================
+
+ifeq "$(INTERNET_AVAILABLE)" "Y"
+ifeq "$(GIT_AVAILABLE)" "Y"
+
+fetchlua:
+	mkdir -p ../lib
+	if [ ! -f "$(LUASRC)/lua.h" ]; then \
+		git submodule init ../submodules/lua; \
+		git submodule update --remote ../submodules/lua; \
+	fi
+fetchpdcurses:
+	mkdir -p ../lib
+	if [ ! -f "$(PDCURSES_TOP)/curses.h" ]; then \
+		git submodule init ../submodules/pdcurses; \
+		git submodule update --remote ../submodules/pdcurses; \
+	fi
+else  # GIT_AVAILABLE no
+CURLLUASRC=http://www.lua.org/ftp/lua-5.4.4.tar.gz
+CURLLUADST=lua-5.4.4.tar.gz
+
+CURLPDCSRC=https://github.com/wmcbrine/PDCurses/archive/refs/tags/3.9.zip
+CURLPDCDST=pdcurses.zip
+
+fetchlua:
+	mkdir -p ../lib
+	if [ ! -f "$(LUASRC)/lua.h" ]; then \
+		cd ../lib; \
+		curl -L $(CURLLUASRC) -o $(CURLLUADST); \
+		/c/Windows/System32/tar -xvf $(CURLLUADST); \
+		cd ../src; \
+	fi
+fetchpdcurses:
+	mkdir -p ../lib
+	if [ ! -f "$(PDCURSES_TOP)/curses.h" ]; then \
+		cd ../lib; \
+		curl -L $(CURLPDCSRC) -o $(CURLPDCDST); \
+		mkdir -p pdcurses; \
+		/c/Windows/System32/tar -C pdcurses --strip-components=1 -xvf $(CURLPDCDST); \
+		cd ../src; \
+	fi
+endif  # GIT_AVAILABLE
+endif  # INTERNET_AVAILABLE
+
 #==========================================
 # nethackw
 #==========================================
@@ -723,7 +857,8 @@ CLEAN_FILE += $(NHTARGET) $(NHOBJS) $(NHRES)
 #==========================================
 
 .PHONY: all clean default install lua makedefs recover pdcurses \
-	tile2bmp tilemap uudecode dlb nethackw nethack tileutil
+	tile2bmp tilemap uudecode dlb nethackw nethack tileutil \
+	fetchlua fetchpdcurses
 
 #
 #  Everything
@@ -747,7 +882,7 @@ ifeq "$(USE_DLB)" "Y"
 TO_INSTALL += $(DLB)
 endif
 
-install: $(TO_INSTALL)
+install: fetchlua fetchpdcurses $(TO_INSTALL)
 ifdef CI_COMPILER
 	ls -l $(SRC)
 	ls -l $(DAT)

sys/windows/Makefile.msc

@@ -45,32 +45,27 @@ GAMEDIR = ..\binary               # Default game build directory
 
 DEBUGINFO = Y
 
+#------------------------------------------------------------------------------
 #
-#---------------------------------------------------------------
-# Location of pdcurses
 #
-# NetHack obtained via git clone (default)
+# Do you have a connection to the internet available that you want
-PDCURSES_TOP = ../submodules/pdcurses
+# to utilize for obtaining prerequisite Lua source code and pdcurses source code?
+#
 
-# NetHack sources obtained by zip file download
+INTERNET_AVAILABLE = N
-#PDCURSES_TOP = ../lib/pdcurses
-#
-#---------------------------------------------------------------
-# Location of LUA on this machine
-#
-# Original Lua source can be obtained from:
-#    http://www.lua.org/ftp/lua-5.4.4.tar.gz
-#
-#    This build assumes that the LUA sources are located
-#    at the specified location. If they are actually elsewhere
-#    you'll need to specify the correct spot below in order to
-#    successfully build NetHack-3.7.
-#
-# NetHack obtained via git clone (default)
-LUATOP = ..\submodules\lua
 
-# NetHack sources obtained by zip file download
+#------------------------------------------------------------------------------
-#LUATOP = ..\lib\lua-5.4.4
+#
+# Do you have git commands available and NetHack in a git repository?
+
+GIT_AVAILABLE = N
+
+# If not, because you obtained the NetHack sources in a zip file download,
+# set GIT_AVAILABLE = N
+# You can override INTERNET_AVAILABLE and GIT_AVAILABLE on the nmake command
+# line by adding GIT=1
+#   for example:
+#      nmake GIT=1 install
 #
 #------------------------------------------------------------------------------
 # This Makefile will attempt to auto-detect your selected target architecture
@@ -83,15 +78,6 @@ LUATOP = ..\submodules\lua
 #TARGET_CPU=x64
 #TARGET_CPU=x86
 
-#------------------------------------------------------------------------------
-#
-#
-# Do you have git commands available and NetHack in a git repository.
-# If not, such as if you obtained the NetHack sources in a zip file download,
-# set GIT_AVAILABLE = 0
-#
-
-GIT_AVAILABLE = 1
 #==============================================================================
 #======================== End of Modification Section =========================
 #==============================================================================
@@ -105,7 +91,6 @@ GIT_AVAILABLE = 1
 #==============================================================================
 
 SKIP_NETHACKW = N
-ADD_CURSES=Y
 
 !IFNDEF LUA_VERSION
 LUAVER=5.4.4
@@ -113,6 +98,99 @@ LUAVER=5.4.4
 LUAVER=$(LUA_VERSION)
 !ENDIF
 
+# if GIT=1 is passed on the make command, allow use of git and internet
+!IF "$(GIT)" == "1"
+INTERNET_AVAILABLE=Y
+GIT_AVAILABLE=Y
+!ENDIF
+!IF "$(git)" == "1"
+INTERNET_AVAILABLE=Y
+GIT_AVAILABLE=Y
+!ENDIF
+
+#==============================================================================
+# Sanity checks for prerequisite Lua and pdcurses
+#
+LUA_MAY_PROCEED=N
+ADD_CURSES=N
+
+# First, Lua
+!IF "$(INTERNET_AVAILABLE)" == "Y"
+!IF "$(GIT_AVAILABLE)" == "Y"
+LUATOP=..\submodules\lua
+LUASRC=$(LUATOP)
+LUA_MAY_PROCEED=Y
+!ELSE   # GIT_AVAILABLE
+LUATOP = ..\lib\lua-$(LUAVER)
+LUASRC = $(LUATOP)\src
+LUA_MAY_PROCEED=Y
+!ENDIF  # GIT_AVAILABLE
+!ELSE   # INTERNET_AVAILABLE is not Y below
+# The internet is not available for obtaining Lua using either
+# method (git or download). Check to see if it is available already, with
+# precedence given to ../submodules, then ../lib.
+#
+!IF EXIST("..\submodules\lua\lua.h")
+LUATOP=..\submodules\lua
+LUASRC=$(LUATOP)
+LUA_MAY_PROCEED=Y
+!ELSEIF EXIST("..\lib\lua-$(LUAVER)\src\lua.h")
+LUATOP = ..\lib\lua-$(LUAVER)
+LUASRC = $(LUATOP)\src
+LUA_MAY_PROCEED=Y
+!ENDIF  # Lua sources
+!IF "$(LUA_MAY_PROCEED)" == "Y"
+!MESSAGE No internet connection was authorized in the Makefile,
+!MESSAGE but a copy of lua-$(LUAVER) was found in $(LUATOP), so that will be used.
+!ENDIF  # LUA_MAY_PROCEED
+!ENDIF  # INTERNET_AVAILABLE
+
+!IF "$(LUA_MAY_PROCEED)" != "Y"
+!IF "$(INTERNET_AVAILABLE)" != "Y"
+!MESSAGE Your Makefile settings do not allow use of the internet to obtain Lua
+!ENDIF  # INTERNET_AVAILABLE
+!MESSAGE and no copy of Lua was found in either ..\submodules\lua or ..\lib\lua-$(LUAVER).
+!MESSAGE Change your nmake command line to include:
+!MESSAGE     GIT=1
+!MESSAGE or modify your Makefile to set the following:
+!MESSAGE     INTERNET_AVAILABLE=Y
+!MESSAGE     GIT_AVAILABLE=Y
+!ERROR Stopping because NetHack 3.7 requires Lua for its build.
+!ENDIF  # LUA_MAY_PROCEED
+
+# Now, pdcurses
+!IF "$(INTERNET_AVAILABLE)" == "Y"
+!IF "$(GIT_AVAILABLE)" == "Y"
+PDCURSES_TOP=..\submodules\pdcurses
+ADD_CURSES=Y
+!ELSE  # GIT_AVAILABLE
+PDCURSES_TOP=..\lib\pdcurses
+ADD_CURSES=Y
+!ENDIF # GIT_AVAILABLE
+!ELSE  # INTERNET_AVAILABLE is not Y below
+# Your Makefile settings do not allow pdcurses to be obtained by
+# git or by download. Check to see if it is available at one of
+# the expected locations already, with precedence given to ../submodules,
+# then ../lib.
+#
+!IF EXIST("..\submodules\pdcurses\curses.h")
+PDCURSES_TOP=..\submodules\pdcurses
+ADD_CURSES=Y
+!ELSEIF EXIST("..\lib\pdcurses\curses.h")
+PDCURSES_TOP=..\lib\pdcurses
+ADD_CURSES=Y
+!ENDIF  # pdcurses sources available somewhere
+!IF "$(ADD_CURSES)" == "Y"
+!MESSAGE Your Makefile settings do not allow pdcurses to be obtained by
+!MESSAGE git or by download, but a copy of pdcurses was found in $(PDCURSES_TOP),
+!MESSAGE so that will be used.
+!ENDIF  # ADD_CURSES == Y
+!ENDIF  # INTERNET_AVAILABLE
+
+!IF "$(ADD_CURSES)" != "Y"
+!MESSAGE NetHack 3.7 will be built without support for the curses window-port.
+!ENDIF
+
 #TEST_CROSSCOMPILE=Y
 
 #==============================================================================
@@ -233,7 +311,6 @@ CROSSCOMPILE=
 LUAVER=5.4.4
 !ENDIF
 
-LUASRC   = $(LUATOP)
 LUALIB   = $(O)lua$(LUAVER)-static.lib
 LUADLL   = $(O)lua$(LUAVER).dll
 LUAINCL  = /I$(LUASRC)
@@ -269,12 +346,12 @@ LUAOBJFILES =   $(LUAOBJFILES) $(O)lbitlib.o
 # is https://github.com/wmcbrine/PDCurses.git
 #=================================================================
 !IF "$(ADD_CURSES)" == "Y"
-PDCURSES_TOP = ..\submodules\pdcurses
 PDCURSES_CURSES_H	= $(PDCURSES_TOP)\curses.h
 PDCURSES_CURSPRIV_H	= $(PDCURSES_TOP)\curspriv.h
 PDCURSES_HEADERS	= $(PDCURSES_CURSES_H) $(PDCURSES_CURSPRIV_H)
 PDCSRC                  = $(PDCURSES_TOP)\pdcurses
 PDCWINCON               = $(PDCURSES_TOP)\wincon
+PDCDEP                  = $(PDCURSES_TOP)\curses.h
 
 PDCLIBOBJS = $(O)addch.o $(O)addchstr.o $(O)addstr.o $(O)attr.o $(O)beep.o \
 	$(O)bkgd.o $(O)border.o $(O)clear.o $(O)color.o $(O)delch.o $(O)deleteln.o \
@@ -293,6 +370,7 @@ PDCINCL = /I$(PDCURSES_TOP) /I$(PDCSRC) /I$(PDCWINCON)
 
 !ELSE
 PDCLIB =
+PDCDEP =
 !ENDIF
 
 HACKINCL = $(INCL)\align.h $(INCL)\artifact.h $(INCL)\artilist.h \
@@ -805,7 +883,7 @@ DLB =
 #==========================================
 
 {$(WCURSES)}.c{$(OBJ)}.o:
-	@$(cc) -DPDC_NCMOUSE $(PDCINCL) $(cflagsBuild) $(CROSSCOMPILE) $(CROSSCOMPILE_TARGET)  -Fo$@ $<
+	$(cc) -DPDC_NCMOUSE $(PDCINCL) $(cflagsBuild) $(CROSSCOMPILE) $(CROSSCOMPILE_TARGET)  -Fo$@ $<
 
 #{$(WCURSES)}.txt{$(DAT)}.txt:
 #	@copy $< $@
@@ -843,15 +921,44 @@ DLB =
 
 all :	install
 
-install: $(LUATOP)\lua.h $(INCL)\nhlua.h $(O)envchk.tag $(O)obj.tag $(O)utility.tag \
+install: $(LUASRC)\lua.h $(PDCDEP) $(INCL)\nhlua.h $(O)envchk.tag $(O)obj.tag $(O)utility.tag \
 		$(DAT)\data $(DAT)\rumors $(DAT)\oracles $(DAT)\engrave \
 		$(DAT)\epitaph $(DAT)\bogusmon $(GAMEDIR)\NetHack.exe \
 		$(GAMEDIR)\NetHackW.exe $(O)install.tag
 	@echo Done.
 
-$(LUATOP)\lua.h:
+!IF "$(INTERNET_AVAILABLE)" == "Y"
-	git submodule init
+!IF "$(GIT_AVAILABLE)" == "Y"
-	git submodule update --remote
+$(LUASRC)\lua.h:
+	git submodule init ../submodules/lua
+	git submodule update --remote ../submodules/lua
+$(PDCURSES_TOP)\curses.h:
+	git submodule init ../submodules/pdcurses
+	git submodule update --remote ../submodules/pdcurses
+
+!ELSE  # GIT_AVAILABLE no
+CURLLUASRC=http://www.lua.org/ftp/lua-5.4.4.tar.gz
+CURLLUADST=lua-5.4.4.tar.gz
+
+CURLPDCSRC=https://github.com/wmcbrine/PDCurses/archive/refs/tags/3.9.zip
+CURLPDCDST=pdcurses.zip
+
+$(LUASRC)\lua.h:
+	cd ..\lib
+	curl -L $(CURLLUASRC) -o $(CURLLUADST)
+	tar -xvf $(CURLLUADST)
+	cd ..\src
+$(PDCURSES_TOP)\curses.h:
+	cd ..\lib
+	curl -L $(CURLPDCSRC) -o $(CURLPDCDST)
+	if not exist pdcurses\*.* mkdir pdcurses
+	tar -C pdcurses --strip-components=1 -xvf $(CURLPDCDST)
+	cd ..\src
+!ENDIF  # GIT_AVAILABLE
+!ELSE   # INTERNET_AVAILABLE
+$(LUASRC)\lua.h:
+$(PDCURSES_TOP)\curses.h:
+!ENDIF  # INTERNET_AVAILABLE
 
 #==========================================
 #  Main game targets.
@@ -1001,10 +1108,10 @@ $(O)utility.tag: $(INCL)\nhlua.h $(U)tile2bmp.exe $(U)makedefs.exe
 
 $(INCL)\nhlua.h:
 	@echo  /* nhlua.h - generated by Makefile from Makefile.msc */ > $@
-	@echo #include "../submodules/lua/lua.h" >> $@
+	@echo #include "lua.h" >> $@
 	@echo LUA_API int   (lua_error) (lua_State *L) NORETURN; >> $@
-	@echo #include "../submodules/lua/lualib.h" >> $@
+	@echo #include "lualib.h" >> $@
-	@echo #include "../submodules/lua/lauxlib.h" >> $@
+	@echo #include "lauxlib.h" >> $@
 	@echo /*nhlua.h*/ >> $@
 
 tileutil: $(U)gif2txt.exe $(U)gif2tx32.exe $(U)txt2ppm.exe