diff --git a/src/files.c b/src/files.c
index f3c171111..dd7245861 100644
--- a/src/files.c
+++ b/src/files.c
@@ -630,10 +630,10 @@ clearlocks()
 #endif
 #ifndef NO_SIGNAL
     (void) signal(SIGINT, SIG_IGN);
-#endif
 #if defined(UNIX) || defined(VMS)
     sethanguphandler((void FDECL((*), (int) )) SIG_IGN);
 #endif
+#endif /* NO_SIGNAL */
     /* can't access maxledgerno() before dungeons are created -dlc */
     for (x = (g.n_dgns ? maxledgerno() : 0); x >= 0; x--)
         delete_levelfile(x); /* not all levels need be present */
diff --git a/src/save.c b/src/save.c
index c3864d5b0..a15ce5860 100644
--- a/src/save.c
+++ b/src/save.c
@@ -101,10 +101,10 @@ dosave0()
         return 0;
     fq_save = fqname(g.SAVEF, SAVEPREFIX, 1); /* level files take 0 */
 
+#ifndef NO_SIGNAL
 #if defined(UNIX) || defined(VMS)
     sethanguphandler((void FDECL((*), (int) )) SIG_IGN);
 #endif
-#ifndef NO_SIGNAL
     (void) signal(SIGINT, SIG_IGN);
 #endif
 
diff --git a/sys/libnh/libnhmain.c b/sys/libnh/libnhmain.c
index fe5ea55e7..844f385d0 100644
--- a/sys/libnh/libnhmain.c
+++ b/sys/libnh/libnhmain.c
@@ -555,11 +555,11 @@ whoami()
     return FALSE;
 }
 
+#ifndef NO_SIGNAL
 void
 sethanguphandler(handler)
 void FDECL((*handler), (int));
 {
-#ifndef NO_SIGNAL
 #ifdef SA_RESTART
     /* don't want reads to restart.  If SA_RESTART is defined, we know
      * sigaction exists and can be used to ensure reads won't restart.
@@ -581,8 +581,8 @@ void FDECL((*handler), (int));
     (void) signal(SIGXCPU, (SIG_RET_TYPE) handler);
 #endif
 #endif /* ?SA_RESTART */
-#endif /* !NO_SIGNAL */
 }
+#endif /* !NO_SIGNAL */
 
 #ifdef PORT_HELP
 void
@@ -1003,7 +1003,8 @@ void js_constants_init() {
     // copyright
     SET_CONSTANT_STRING("COPYRIGHT", COPYRIGHT_BANNER_A);
     SET_CONSTANT_STRING("COPYRIGHT", COPYRIGHT_BANNER_B);
-    SET_CONSTANT_STRING("COPYRIGHT", COPYRIGHT_BANNER_C);
+    // XXX: not set for cross-compile
+    //SET_CONSTANT_STRING("COPYRIGHT", COPYRIGHT_BANNER_C);
     SET_CONSTANT_STRING("COPYRIGHT", COPYRIGHT_BANNER_D);
 
     // glyphs
@@ -1071,7 +1072,6 @@ void create_global (char *name, void *ptr, char *type);
 void js_globals_init() {
     // int i;
     // char buf[BUFSZ];
-    printf("js_globals_init\n");
 
     EM_ASM({
         globalThis.nethackGlobal = globalThis.nethackGlobal || {};
diff --git a/sys/libnh/npm-package/package.json b/sys/libnh/npm-package/package.json
index e39a7d201..0d2e13937 100644
--- a/sys/libnh/npm-package/package.json
+++ b/sys/libnh/npm-package/package.json
@@ -4,9 +4,9 @@
   "description": "The original NetHack rogue-like game built as a WebAssembly module",
   "main": "src/nethackShim.js",
   "scripts": {
-    "test": "node test/test.js",
+    "test": "npm run build && node test/test.js",
     "clean": "rm ./build/nethack.js; rm ./build/nethack.wasm; true",
-    "build": "cp ../../../src/nethack.js ../../../src/nethack.wasm ./build",
+    "build": "mkdir build; cp ../../../targets/wasm/nethack.js ../../../targets/wasm/nethack.wasm ./build",
     "prepack": "npm run build"
   },
   "keywords": [
diff --git a/sys/libnh/test/run.sh b/sys/libnh/test/run.sh
index b89ab55d9..e930684c4 100755
--- a/sys/libnh/test/run.sh
+++ b/sys/libnh/test/run.sh
@@ -2,11 +2,13 @@
 
 if [ x$1 == "xlib" ]; then
     echo Doing lib...
-    make spotless
-    cd sys/lib
+    if [ -f Makefile ]; then
+        make spotless
+    fi
+    cd sys/unix
     ./setup.sh hints/macOS.2020
     cd ../..
-    make
+    make WANT_LIBNH=1
 fi
 
 if [ x$1 == "xrunlib" ]; then
@@ -19,15 +21,17 @@ fi
 
 if [ x$1 == "xwasm" ]; then
     echo Doing wasm...
-    make spotless
-    cd sys/lib
-    ./setup.sh hints/wasm
+    if [ -f Makefile ]; then
+        make spotless
+    fi
+    cd sys/unix
+    ./setup.sh hints/macOS.2020
     cd ../..
-    make
+    make CROSS_TO_WASM=1
 fi
 
 if [ x$1 == "xrunwasm" ]; then
-    cd sys/lib/npm-package && node test/test.js
+    cd sys/lib/npm-package && npm run build && node test/test.js
 fi
 
 if [ x$1 == "xbin" ]; then
diff --git a/sys/unix/hints/include/cross-pre.2020 b/sys/unix/hints/include/cross-pre.2020
index 0e9816627..562a1934d 100644
--- a/sys/unix/hints/include/cross-pre.2020
+++ b/sys/unix/hints/include/cross-pre.2020
@@ -29,10 +29,12 @@ endif
 ifdef CROSS_TO_WASM
 CROSS=1
 BUILD_TARGET_LUA=1
+HACKDIR=/
+PREFIX=
 override TARGET = wasm
 override TARGETDIR=../targets/$(TARGET)
 override TARGETPFX = $(TARGETDIR)/
-override TARGET_LIBS= 
+override TARGET_LIBS=
 endif
 
 ifdef CROSS
@@ -246,7 +248,7 @@ else
 override TARGET_LINK = $(TARGET_CC)
 endif
 override TARGET_LFLAGS= $(TOOLARCH)
-#override TARGET_LIBS += 
+#override TARGET_LIBS +=
 VARDATND += nhtiles.bmp
 override SYSSRC = ../outdated/sys/amiga/amidos.c ../outdated/sys/amiga/amigst.c \
 		../outdated/sys/amiga/amimenu.c ../outdated/sys/amiga/amirip.c \
@@ -298,36 +300,43 @@ ifdef CROSS_TO_WASM
 # originally from https://github.com/NetHack/NetHack/pull/385
 #===============-=================================================
 #
+WASM_DEBUG = 1
 WASM_DATA_DIR = $(TARGETPFX)wasm-data
 WASM_TARGET = $(TARGETPFX)nethack.js
 EMCC_LFLAGS =
 #EMCC_LFLAGS += -s SINGLE_FILE=1
+EMCC_LFLAGS += -DHACKDIR=\"$(HACKDIR)\"
 EMCC_LFLAGS += -s WASM=1
 EMCC_LFLAGS += -s ALLOW_TABLE_GROWTH
 EMCC_LFLAGS += -s ASYNCIFY -s ASYNCIFY_IMPORTS='["local_callback"]'
 EMCC_LFLAGS += -O3
 EMCC_LFLAGS += -s MODULARIZE
-EMCC_LFLAGS += -s EXPORTED_FUNCTIONS='["_main", "_shim_graphics_set_callback"]'
+EMCC_LFLAGS += -s EXPORTED_FUNCTIONS='["_main", "_shim_graphics_set_callback", "_mapglyph", "_display_inventory"]'
 EMCC_LFLAGS += -s EXPORTED_RUNTIME_METHODS='["cwrap", "ccall", "addFunction", \
 			"removeFunction", "UTF8ToString", "getValue", "setValue"]'
 EMCC_LFLAGS += -s ERROR_ON_UNDEFINED_SYMBOLS=0
-EMCC_LFLAGS += --embed-file $(WASM_DATA_DIR)
+# XXX: the "@/" at the end of "--embed-file" tells emscripten to embed the files
+# in the root directory, otherwise they will end up in the $(WASM_DATA_DIR) path
+EMCC_LFLAGS += --embed-file $(WASM_DATA_DIR)@/
 # For a list of EMCC settings:
 # https://github.com/emscripten-core/emscripten/blob/master/src/settings.js
 #
 # WASM C flags
-EMCC_CFLAGS=
+EMCC_CFLAGS =
 EMCC_CFLAGS += -Wall
-#EMCC_CFLAGS += -Werror
+EMCC_CFLAGS += -Werror
+EMCC_CFLAGS += -DNO_SIGNAL
 #EMCC_CFLAGS += -s DISABLE_EXCEPTION_CATCHING=0
-EMCC_DEBUG_CFLAGS += -s ASSERTIONS=1
-#EMCC_DEBUG_CFLAGS += -s ASSERTIONS=2
+#EMCC_DEBUG_CFLAGS += -s ASSERTIONS=1
+EMCC_DEBUG_CFLAGS += -s ASSERTIONS=2
 EMCC_DEBUG_CFLAGS += -s STACK_OVERFLOW_CHECK=2
 EMCC_DEBUG_CFLAGS += -s SAFE_HEAP=1
 EMCC_DEBUG_CFLAGS += -s LLD_REPORT_UNDEFINED=1
-#EMCC_DEBUG_CFLAGS += -s EXCEPTION_DEBUG=1
+EMCC_DEBUG_CFLAGS += -s EXCEPTION_DEBUG=1
 #EMCC_DEBUG_CFLAGS += -fsanitize=undefined -fsanitize=address -fsanitize=leak
-#EMCC_DEBUG_CFLAGS += -s EXIT_RUNTIME
+EMCC_DEBUG_CFLAGS += -s EXIT_RUNTIME=1
+# XXX: if --profiling isn't included then any error dumps 10MB of WASM to the screen rather than a useful message
+EMCC_DEBUG_CFLAGS += --profiling
 EMCC_PROD_CFLAGS += -O3
 ifdef WASM_DEBUG
 EMCC_CFLAGS += $(EMCC_DEBUG_CFLAGS)
diff --git a/sys/unix/hints/macOS.2020 b/sys/unix/hints/macOS.2020
index 85f9b3208..283f1a779 100755
--- a/sys/unix/hints/macOS.2020
+++ b/sys/unix/hints/macOS.2020
@@ -294,6 +294,7 @@ VARDIR=$(HACKDIR)
 #-INCLUDE cross-pre.2020
 #
 #-POST
+
 ifdef WANT_LIBNH
 libnh.a: $(HOBJ) $(LIBNHSYSOBJ) ../lib/lua/liblua.a
 	$(AR) rcs $@ $(HOBJ) $(LIBNHSYSOBJ) ../lib/lua/liblua.a