adopt some integration suggestions

sys/lib -> sys/libnh
sys/lib/libnethackmain.c -> sys/libnh/libnhmain.c
libnethack.a -> libnh.a

sys/libnh/libnhmain.c

@@ -1,4 +1,4 @@
-/* NetHack 3.7	unixmain.c	$NHDT-Date: 1596498297 2020/08/03 23:44:57 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.87 $ */
+/* NetHack 3.7	libnhmain.c	$NHDT-Date: 1596498297 2020/08/03 23:44:57 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.87 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Robert Patrick Rankin, 2011. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -1124,4 +1124,4 @@ EM_JS(void, create_global, (char *name_str, void *ptr, char *type_str), {
 
 #endif
 
-/*libnethack.c*/
+/*libnhmain.c*/

sys/unix/Makefile.src

@@ -300,7 +300,7 @@ WINGNOMEOBJ =
 WINGEMSRC =
 WINGEMOBJ =
 
-# Files for Shim windowing interface for libnethack -- doesn't do anything,
+# Files for Shim windowing interface for libnh -- doesn't do anything,
 # just passes along the API calls to the library
 #
 WINSHIMSRC = ../win/shim/winshim.c

sys/unix/hints/include/cross-post.2020

@@ -130,7 +130,7 @@ $(WASM_DATA_DIR): $(WASM_DATA_DIR)/nhdat
 	touch $(WASM_DATA_DIR)/record
 	touch $(WASM_DATA_DIR)/logfile
 	touch $(WASM_DATA_DIR)/xlogfile
-	cp ../sys/lib/sysconf $(WASM_DATA_DIR)/sysconf
+	cp ../sys/libnh/sysconf $(WASM_DATA_DIR)/sysconf
 
 $(WASM_DATA_DIR)/nhdat:
 	( cd ..; $(MAKE) INSTDIR='$(WASM_DATA_DIR)' $(WASMDEP) dofiles-dlb )
@@ -142,7 +142,7 @@ $(TARGETPFX)unixunix.o : ../sys/unix/unixunix.c $(HACK_H)
 $(TARGETPFX)ioctl.o : ../sys/share/ioctl.c $(HACK_H)
 $(TARGETPFX)unixtty.o : ../sys/share/unixtty.c $(HACK_H)
 $(TARGETPFX)winshim.o : ../win/shim/winshim.c $(HACK_H)
-$(TARGETPFX)libnethackmain.o : ../sys/lib/libnethackmain.c \
+$(TARGETPFX)libnhmain.o : ../sys/libnh/libnhmain.c \
 		$(HACK_H) ../include/date.h
 endif  # CROSS_TO_WASM
 #

sys/unix/hints/include/cross-pre.2020

@@ -367,11 +367,11 @@ override TARGET_CFLAGS = $(EMCC_CFLAGS) $(WASM_CFLAGS) $(WASM_TARGET_CFLAGS)
 override TARGET_CXXFLAGS = $(TARGET_CFLAGS)
 override TARGET_LINK = $(TARGET_CC)
 override TARGET_LFLAGS= $(EMCC_LFLAGS)
-override SYSSRC = ../sys/lib/libnethackmain.c \
+override SYSSRC = ../sys/libnh/libnhmain.c \
 		../sys/share/ioctl.c ../sys/share/unixtty.c \
 		../sys/unix/unixunix.c ../sys/unix/unixres.c \
 		../win/shim/winshim.c
-override SYSOBJ= $(TARGETPFX)libnethackmain.o \
+override SYSOBJ= $(TARGETPFX)libnhmain.o \
 		$(TARGETPFX)ioctl.o $(TARGETPFX)unixtty.o \
 		$(TARGETPFX)unixunix.o $(TARGETPFX)unixres.o \
 		$(TARGETPFX)winshim.o
@@ -393,8 +393,8 @@ RANLIB=$(EMRANLIB)
 # Rule for file in sys/unix
 $(TARGETPFX)%.o : ../sys/unix/%.c
 	$(TARGET_CC) $(TARGET_CFLAGS) -c -o$@ $<
-# Rule for file in sys/lib
+# Rule for file in sys/libnh
-$(TARGETPFX)%.o : ../sys/lib/%.c
+$(TARGETPFX)%.o : ../sys/libnh/%.c
 	$(TARGET_CC) $(TARGET_CFLAGS) -c -o$@ $<
 # Rule for files in win/shim
 $(TARGETPFX)%.o : ../win/shim/%.c

sys/unix/hints/linux.2020

@@ -166,16 +166,16 @@ VARDATND += $(sort $(VARDATND0))
 
 ifdef WANT_LIBNH
 CFLAGS += -DSHIM_GRAPHICS -DNOTTYGRAPHICS -DNOSHELL -DLIBNH
-LIBNHSYSSRC = ../sys/lib/libnethackmain.c \
+LIBNHSYSSRC = ../sys/libnh/libnhmain.c \
 		../sys/share/ioctl.c ../sys/share/unixtty.c \
 		../sys/unix/unixunix.c ../sys/unix/unixres.c \
 		../win/shim/winshim.c
-LIBNHSYSOBJ= libnethackmain.o ioctl.o unixtty.o unixunix.o \
+LIBNHSYSOBJ= libnhmain.o ioctl.o unixtty.o unixunix.o \
                 unixres.o winshim.o
 #don't bother building the game executable as it will fail
 #without winshim
 override GAME=
-MOREALL += ( cd src ; $(MAKE) pregame ; $(MAKE) libnethack.a )
+MOREALL += ( cd src ; $(MAKE) pregame ; $(MAKE) libnh.a )
 endif  # WANT_LIBNH
 
 #PREFIX=/usr
@@ -225,10 +225,10 @@ GAMEPERM = 0755
 #-INCLUDE cross-post.2020
 #
 ifdef WANT_LIBNH
-libnethack.a: $(HOBJ) $(LIBNHSYSOBJ) ../lib/lua/liblua.a
+libnh.a: $(HOBJ) $(LIBNHSYSOBJ) ../lib/lua/liblua.a
 	$(AR) rcs $@ $(HOBJ) $(LIBNHSYSOBJ) ../lib/lua/liblua.a
 	@echo "$@ built."
-libnethackmain.o : ../sys/lib/libnethackmain.c $(HACK_H) ../include/date.h
+libnhmain.o : ../sys/libnh/libnhmain.c $(HACK_H) ../include/date.h
 	$(CC) $(CFLAGS) -c -o$@ $<
 winshim.o : ../win/shim/winshim.c $(HACK_H)
 	$(CC) $(CFLAGS) -c -o$@ $<

sys/unix/hints/macOS.2020

@@ -173,16 +173,16 @@ VARDATND += $(sort $(VARDATND0))
 
 ifdef WANT_LIBNH
 CFLAGS += -DSHIM_GRAPHICS -DNOTTYGRAPHICS -DNOSHELL -DLIBNH
-LIBNHSYSSRC = ../sys/lib/libnethackmain.c \
+LIBNHSYSSRC = ../sys/libnh/libnhmain.c \
 		../sys/share/ioctl.c ../sys/share/unixtty.c \
 		../sys/unix/unixunix.c ../sys/unix/unixres.c \
 		../win/shim/winshim.c
-LIBNHSYSOBJ= libnethackmain.o ioctl.o unixtty.o unixunix.o \
+LIBNHSYSOBJ= libnhmain.o ioctl.o unixtty.o unixunix.o \
                 unixres.o winshim.o
 #don't bother building the game executable as it will fail
 #without winshim
 override GAME=
-MOREALL += ( cd src ; $(MAKE) pregame ; $(MAKE) libnethack.a )
+MOREALL += ( cd src ; $(MAKE) pregame ; $(MAKE) libnh.a )
 endif  # WANT_LIBNH
 
 WANT_BUNDLE=1
@@ -295,10 +295,10 @@ VARDIR=$(HACKDIR)
 #
 #-POST
 ifdef WANT_LIBNH
-libnethack.a: $(HOBJ) $(LIBNHSYSOBJ) ../lib/lua/liblua.a
+libnh.a: $(HOBJ) $(LIBNHSYSOBJ) ../lib/lua/liblua.a
 	$(AR) rcs $@ $(HOBJ) $(LIBNHSYSOBJ) ../lib/lua/liblua.a
 	@echo "$@ built."
-libnethackmain.o : ../sys/lib/libnethackmain.c $(HACK_H) ../include/date.h
+libnhmain.o : ../sys/libnh/libnhmain.c $(HACK_H) ../include/date.h
 	$(CC) $(CFLAGS) -c -o$@ $<
 winshim.o : ../win/shim/winshim.c $(HACK_H)
 	$(CC) $(CFLAGS) -c -o$@ $<