diff -Nurd js/src/Makefile.ref js-patched/src/Makefile.ref
--- js/src/Makefile.ref	2006-07-26 15:16:47.000000000 -0400
+++ js-patched/src/Makefile.ref	2021-03-15 21:04:44.000000000 -0400
@@ -63,11 +63,11 @@
 
 ifdef JS_THREADSAFE
 DEFINES += -DJS_THREADSAFE
-INCLUDES += -I$(DIST)/include/nspr
+INCLUDES += `nspr-config --cflags`
 ifdef USE_MSVC
 OTHER_LIBS += $(DIST)/lib/libnspr$(NSPR_LIBSUFFIX).lib
 else
-OTHER_LIBS += -L$(DIST)/lib -lnspr$(NSPR_LIBSUFFIX)
+OTHER_LIBS += `nspr-config --libs`
 endif
 endif
 
@@ -134,7 +134,7 @@
 ifdef JS_READLINE
 # For those platforms with the readline library installed.
 DEFINES += -DEDITLINE
-PROG_LIBS += -lreadline -ltermcap
+PROG_LIBS += -lreadline
 else
 ifdef JS_EDITLINE
 # Use the editline library, built locally.
@@ -188,6 +188,8 @@
 	jsstr.h		\
 	jsxdrapi.h	\
 	jsxml.h		\
+	jsutil.h	\
+	jsprf.h		\
 	$(NULL)
 
 API_HFILES =		\
@@ -373,3 +375,16 @@
 SUFFIXES: .i
 %.i: %.c
 	$(CC) -C -E $(CFLAGS) $< > $*.i
+
+DESTDIR :=
+PREFIX := @FINKPREFIX@
+BINDIR := $(PREFIX)/bin
+MY_LIBDIR := $(PREFIX)/$(LIBDIR)
+INCLUDEDIR := $(PREFIX)/include/js
+INSTALL := install
+install:
+	$(INSTALL) -m 755 -d $(DESTDIR)$(INCLUDEDIR) $(DESTDIR)$(MY_LIBDIR) $(DESTDIR)$(BINDIR)
+	$(INSTALL) -m 755 $(SHARED_LIBRARY) $(DESTDIR)$(MY_LIBDIR)
+	$(INSTALL) -m 644 $(LIBRARY) $(DESTDIR)$(MY_LIBDIR)
+	$(INSTALL) -m 755 $(OBJDIR)/js $(OBJDIR)/jscpucfg $(DESTDIR)$(BINDIR)
+	$(INSTALL) -m 644 $(HFILES) $(DESTDIR)$(INCLUDEDIR)
diff -Nurd js/src/config/Darwin.mk js-patched/src/config/Darwin.mk
--- js/src/config/Darwin.mk	2007-02-05 11:24:49.000000000 -0500
+++ js-patched/src/config/Darwin.mk	2011-05-11 12:45:41.000000000 -0400
@@ -43,13 +43,13 @@
 # Just ripped from Linux config
 #
 
-CC = cc
+CC = gcc
 CCC = g++
-CFLAGS +=  -Wall -Wno-format
-OS_CFLAGS = -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN
+CFLAGS +=  -Wall -Wno-format -no-cpp-precomp -fno-common -pipe
+OS_CFLAGS = -DJS_THREADSAFE -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DDARWIN -DJS_C_STRINGS_ARE_UTF8
 
 RANLIB = ranlib
-MKSHLIB = $(CC) -dynamiclib $(XMKSHLIBOPTS) -framework System
+MKSHLIB = $(CC) -compatibility_version 1.0 -current_version 1.0 -framework System -dynamiclib $(XMKSHLIBOPTS) -lm -lplds4 -lplc4 -lnspr4 $(LDFLAGS)
 
 SO_SUFFIX = dylib
 
@@ -59,7 +59,6 @@
 CPU_ARCH = $(shell uname -m)
 ifeq (86,$(findstring 86,$(CPU_ARCH)))
 CPU_ARCH = x86
-OS_CFLAGS+= -DX86_LINUX
 endif
 GFX_ARCH = x
 
@@ -67,14 +66,6 @@
 
 ASFLAGS += -x assembler-with-cpp
 
-ifeq ($(CPU_ARCH),alpha)
-
-# Ask the C compiler on alpha linux to let us work with denormalized
-# double values, which are required by the ECMA spec.
-
-OS_CFLAGS += -mieee
-endif
-
 # Use the editline library to provide line-editing support.
 JS_EDITLINE = 1
 
diff -Nurd js/src/config/Linux_All.mk js-patched/src/config/Linux_All.mk
--- js/src/config/Linux_All.mk	2005-05-10 15:53:44.000000000 -0400
+++ js-patched/src/config/Linux_All.mk	2011-05-11 12:41:43.000000000 -0400
@@ -41,37 +41,15 @@
 # Config for all versions of Linux
 #
 
-CC = gcc
-CCC = g++
 CFLAGS +=  -Wall -Wno-format
 OS_CFLAGS = -DXP_UNIX -DSVR4 -DSYSV -D_BSD_SOURCE -DPOSIX_SOURCE -DHAVE_LOCALTIME_R
 
 RANLIB = echo
-MKSHLIB = $(LD) -shared $(XMKSHLIBOPTS)
+MKSHLIB = $(LD) -shared $(XMKSHLIBOPTS) -soname $(notdir $@)
 
 #.c.o:
 #      $(CC) -c -MD $*.d $(CFLAGS) $<
 
-CPU_ARCH = $(shell uname -m)
-# don't filter in x86-64 architecture
-ifneq (x86_64,$(CPU_ARCH))
-ifeq (86,$(findstring 86,$(CPU_ARCH)))
-CPU_ARCH = x86
-OS_CFLAGS+= -DX86_LINUX
-
-ifeq (gcc, $(CC))
-# if using gcc on x86, check version for opt bug 
-# (http://bugzilla.mozilla.org/show_bug.cgi?id=24892)
-GCC_VERSION := $(shell gcc -v 2>&1 | grep version | awk '{ print $$3 }')
-GCC_LIST:=$(sort 2.91.66 $(GCC_VERSION) )
-
-ifeq (2.91.66, $(firstword $(GCC_LIST)))
-CFLAGS+= -DGCC_OPT_BUG
-endif
-endif
-endif
-endif
-
 GFX_ARCH = x
 
 OS_LIBS = -lm -lc
@@ -88,16 +66,6 @@
 endif
 
 # Use the editline library to provide line-editing support.
-JS_EDITLINE = 1
+JS_READLINE = 1
 
-ifeq ($(CPU_ARCH),x86_64)
-# Use VA_COPY() standard macro on x86-64
-# FIXME: better use it everywhere
 OS_CFLAGS += -DHAVE_VA_COPY -DVA_COPY=va_copy
-endif
-
-ifeq ($(CPU_ARCH),x86_64)
-# We need PIC code for shared libraries
-# FIXME: better patch rules.mk & fdlibm/Makefile*
-OS_CFLAGS += -DPIC -fPIC
-endif
diff -Nurd js/src/config.mk js-patched/src/config.mk
--- js/src/config.mk	2006-07-27 17:00:57.000000000 -0400
+++ js-patched/src/config.mk	2011-05-11 12:41:43.000000000 -0400
@@ -116,6 +116,8 @@
 CP = cp
 endif
 
+BUILD_OPT := 1
+
 ifdef BUILD_OPT
 OPTIMIZER  = -O
 DEFINES    += -UDEBUG -DNDEBUG -UDEBUG_$(USER)
diff -Nurd js/src/editline/editline.c js-patched/src/editline/editline.c
--- js/src/editline/editline.c	2006-06-29 08:51:42.000000000 -0400
+++ js-patched/src/editline/editline.c	2021-09-25 14:53:34.000000000 -0400
@@ -64,6 +64,7 @@
 #include "editline.h"
 #include <signal.h>
 #include <ctype.h>
+#include <unistd.h>
 
 /*
 **  Manifest constants.
@@ -154,12 +155,10 @@
 **  Declarations.
 */
 STATIC CHAR	*editinput();
-extern int	read();
-extern int	write();
 #if	defined(USE_TERMCAP)
-extern char	*getenv();
-extern char	*tgetstr();
-extern int	tgetent();
+#include <stdlib.h>
+#include <curses.h>
+#include <terem.h>
 #endif	/* defined(USE_TERMCAP) */
 
 /*
@@ -188,7 +187,7 @@
 
 STATIC void
 TTYputs(p)
-    CHAR	*p;
+    CONST CHAR	*p;
 {
     while (*p)
 	TTYput(*p++);
@@ -1048,7 +1047,7 @@
 	return;
 
 #if	defined(UNIQUE_HISTORY)
-    if (H.Size && strcmp(p, H.Lines[H.Size - 1]) == 0)
+    if (H.Size && strcmp(p, (char *)H.Lines[H.Size - 1]) == 0)
         return;
 #endif	/* defined(UNIQUE_HISTORY) */
     hist_add((CHAR *)p);
diff -Nurd js/src/fdlibm/Makefile.ref js-patched/src/fdlibm/Makefile.ref
--- js/src/fdlibm/Makefile.ref	2003-11-14 19:11:04.000000000 -0500
+++ js-patched/src/fdlibm/Makefile.ref	2011-05-11 12:41:43.000000000 -0400
@@ -151,7 +151,7 @@
 
 $(OBJDIR)/%.o: %.c
 	@$(MAKE_OBJDIR)
-	$(CC) -o $@ -c $(CFLAGS) $*.c
+	$(CC) -o $@ -c $(CFLAGS) $*.c -fPIC
 
 $(OBJDIR)/%.o: %.s
 	@$(MAKE_OBJDIR)
diff -Nurd js/src/jsprf.c js-patched/src/jsprf.c
--- js/src/jsprf.c	2006-07-06 22:12:02.000000000 -0400
+++ js-patched/src/jsprf.c	2011-05-11 12:41:43.000000000 -0400
@@ -58,6 +58,8 @@
 */
 #ifdef HAVE_VA_COPY
 #define VARARGS_ASSIGN(foo, bar)        VA_COPY(foo,bar)
+#elif defined(va_copy)
+#define VARARGS_ASSIGN(foo, bar)        va_copy(foo,bar)
 #elif defined(HAVE_VA_LIST_AS_ARRAY)
 #define VARARGS_ASSIGN(foo, bar)        foo[0] = bar[0]
 #else
diff -Nurd js/src/rules.mk js-patched/src/rules.mk
--- js/src/rules.mk	2006-07-06 22:12:02.000000000 -0400
+++ js-patched/src/rules.mk	2011-05-11 12:41:43.000000000 -0400
@@ -82,6 +82,10 @@
 	@$(MAKE_OBJDIR)
 	$(CC) -o $@ -c $(CFLAGS) $*.c
 
+$(OBJDIR)/%.lo: %.c
+	@$(MAKE_OBJDIR)
+	$(CC) -o $@ -c $(CFLAGS) $*.c -fPIC
+
 $(OBJDIR)/%.o: %.s
 	@$(MAKE_OBJDIR)
 	$(AS) -o $@ $(ASFLAGS) $*.s
@@ -111,11 +115,12 @@
 	    /implib:"$(OBJDIR)/$(@F:.dll=.lib)" $^
 else
 $(LIBRARY): $(LIB_OBJS)
-	$(AR) rv $@ $?
+	$(AR) cr $@ $?
 	$(RANLIB) $@
 
-$(SHARED_LIBRARY): $(LIB_OBJS)
-	$(MKSHLIB) -o $@ $(LIB_OBJS) $(LDFLAGS) $(OTHER_LIBS)
+SHARED_LIB_OBJS := $(LIB_OBJS:.o=.lo)
+$(SHARED_LIBRARY): $(SHARED_LIB_OBJS)
+	$(MKSHLIB) -o $@ $(SHARED_LIB_OBJS) $(LDFLAGS) $(OTHER_LIBS) -install_name $(PREFIX)/lib/$(notdir $@)
 endif
 endif