--- js/src/Makefile.ref
+++ js/src/Makefile.ref
@@ -127,7 +127,7 @@ endif 
 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.
@@ -370,3 +370,16 @@ TARFILES = files `cat files`
 SUFFIXES: .i
 %.i: %.c
 	$(CC) -C -E $(CFLAGS) $< > $*.i
+
+DESTDIR :=
+PREFIX := /usr
+BINDIR := $(PREFIX)/bin
+MY_LIBDIR := $(PREFIX)/$(LIBDIR)
+INCLUDEDIR := $(PREFIX)/include/js
+INSTALL := install -g root -o root
+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)
--- js/src/config/Linux_All.mk
+++ js/src/config/Linux_All.mk
@@ -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
--- js/src/rules.mk
+++ js/src/rules.mk
@@ -82,6 +82,10 @@ $(OBJDIR)/%.o: %.c
 	@$(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 @@ $(SHARED_LIBRARY): $(LIB_OBJS)
 	    /implib:"$(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)
 endif
 endif
 
--- js/src/fdlibm/Makefile.ref
+++ js/src/fdlibm/Makefile.ref
@@ -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)
--- js/src/config.mk
+++ js/src/config.mk
@@ -112,6 +112,8 @@
 CP = cp
 endif
 
+BUILD_OPT := 1
+
 ifdef BUILD_OPT
 OPTIMIZER  = -O
 DEFINES    += -UDEBUG -DNDEBUG -UDEBUG_$(shell whoami)