diff --git a/.cvsignore b/.cvsignore
index b33c6c7d..5646f6a9 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1,3 +1,4 @@
+B
 ChangeLog.cvs*
 build
 doxygen
diff --git a/NEWS b/NEWS
index 9a4c84eb..b5933915 100644
--- a/NEWS
+++ b/NEWS
@@ -7,7 +7,7 @@ User visible changes for UPX
 [ WARNING: there are known bugs in the win32/pe format which cause
   crashes on a number of exes ]
 
-Changes in 1.91 beta (XX Mar 2003):
+Changes in 1.91 beta (XX Sep 2003):
   * UNSTABLE BETA VERSION - DO NOT USE EXCEPT FOR TESTING
   * djgpp2/coff: added support for recent binutils versions
   * watcom/le: don't crash on files without relocations
diff --git a/src/.cvsignore b/src/.cvsignore
index d77fa2ae..7c738769 100644
--- a/src/.cvsignore
+++ b/src/.cvsignore
@@ -13,6 +13,7 @@ GNUmakefile
 .gdbinit
 .Attic
 .deps
+B
 compress_nrv.*
 upx
 upx_nrv
diff --git a/src/Makefile.bld b/src/Makefile.bld
index 48386c2d..8683690e 100644
--- a/src/Makefile.bld
+++ b/src/Makefile.bld
@@ -260,7 +260,7 @@ endif
 
 
 ###
-### dos32 - djgpp2
+### dos32 - djgpp2 / emx
 ###
 
 ifeq ($(target),djgpp2)
@@ -275,7 +275,16 @@ ifneq ($(strip $(wildcard $(DJDIR)/bin/cwsdstub.ex[eE])),)
 STUBIFY_EXE = mfxdjstubify -v -s $(DJDIR)/bin/cwsdstub.exe $@
 endif
 endif
-endif	# djgpp2
+endif
+
+ifeq ($(target),emx)
+include $(srcdir)/Makedefs.gcc
+e = .exe
+CXX = gcc
+CFLAGS_O = -O2
+CCARCH += -mno-probe
+LDFLAGS = -s
+endif
 
 
 ###
@@ -284,6 +293,7 @@ endif	# djgpp2
 
 ifeq ($(target),cygwin)
 include $(srcdir)/Makedefs.gcc
+##CXX = g++-2
 e = .exe
 CCARCH += -mcygwin -march=i386 -mcpu=i686
 endif
@@ -501,7 +511,7 @@ endif	# vc
 
 
 ###
-### win32 - Watcom C++ 11.0c / Open Watcom C++ 1.0
+### win32 - Watcom C++
 ###
 
 ifeq ($(target),wc)
@@ -509,6 +519,7 @@ o = .obj
 a = .lib
 e = .exe
 CC = wcl386 -zq -bt=nt -mf -5r
+##CC = wcl386 -zq -bt=dos -l=CauseWay -mf -5r
 CFLAGS = -zc -w5 -we
 CXXFLAGS = $(CFLAGS) -xs -xr
 CFLAGS_OUTPUT = -fo=$@
@@ -538,6 +549,90 @@ endif
 endif	# wc
 
 
+###
+### win64 - Intel C++
+###
+
+ifeq ($(target),win64-ic)
+o = .obj
+a = .lib
+e = .exe
+CC = ecl -nologo
+CFLAGS = -W3
+CXXFLAGS = $(CFLAGS) -EHac -GR
+LDFLAGS =
+LINK_EXE_OUTPUT = -Fe$@
+LINK_EXE_LDFLAGS = /link /map:$T.map
+##LINK_EXE_LDFLAGS += /verbose
+
+ifneq ($(strip $(DOS_LIBDIRS)),)
+LIB := $(DOS_LIBDIRS);$(LIB)
+endif
+export LIB
+
+ifeq (1,2)
+  # statically link libc.lib
+  CC += -ML
+  LDLIBS = $(DOS_LDLIBS:.lib=_ml.lib) setargv.obj
+else
+  # link against msvcrt.dll
+  CC += -MD
+  LDLIBS = $(DOS_LDLIBS) setargv.obj
+endif
+ifeq ($(DEBUG),1)
+  CFLAGS += -Od -ZI
+  LINK_EXE_LDFLAGS += /debug
+else
+  CFLAGS += -O1 -GF
+  LINK_EXE_LDFLAGS += /release
+endif
+RESOURCES := $(subst .rc,.res,$(notdir $(wildcard $(srcdir)/*.rc)))
+
+endif	# win64-ic
+
+
+###
+### win64 - Visual C++
+###
+
+ifeq ($(target),win64-vc)
+o = .obj
+a = .lib
+e = .exe
+CC = cl -nologo
+CFLAGS = -W4
+CXXFLAGS = $(CFLAGS) -EHac -GR
+LDFLAGS =
+LINK_EXE_OUTPUT = -Fe$@
+LINK_EXE_LDFLAGS = /link /map:$T.map
+##LINK_EXE_LDFLAGS += /verbose
+
+ifneq ($(strip $(DOS_LIBDIRS)),)
+LIB := $(DOS_LIBDIRS);$(LIB)
+endif
+export LIB
+
+ifeq (1,1)
+  # statically link libc.lib
+  CC += -ML
+  LDLIBS = $(DOS_LDLIBS:.lib=_ml.lib) setargv.obj
+else
+  # link against msvcrt.dll
+  CC += -MD
+  LDLIBS = $(DOS_LDLIBS) setargv.obj
+endif
+ifeq ($(DEBUG),1)
+  CFLAGS += -Od -ZI
+  LINK_EXE_LDFLAGS += /debug
+else
+  CFLAGS += -O1 -GF
+  LINK_EXE_LDFLAGS += /release
+endif
+RESOURCES := $(subst .rc,.res,$(notdir $(wildcard $(srcdir)/*.rc)))
+
+endif	# win64-vc
+
+
 # /***********************************************************************
 # // malloc debuggers and memory checkers - somewhat obsolete, use valgrind
 # ************************************************************************/
diff --git a/src/conf.h b/src/conf.h
index 29afb1b0..1fbb2d97 100644
--- a/src/conf.h
+++ b/src/conf.h
@@ -43,9 +43,6 @@
 #include "acc/acc_incd.h"
 #include "acc/acc_ince.h"
 #include "acc/acc_lib.h"
-#if !defined(acc_int64l_t) || !defined(acc_uint64l_t)
-#  error "need a 64-bit integer type"
-#endif
 #if (ACC_OS_WIN32 || ACC_OS_WIN64)
 #  if defined(INVALID_HANDLE_VALUE) || defined(MAKEWORD) || defined(RT_CURSOR)
 #    error "something pulled in <windows.h>"
@@ -54,8 +51,8 @@
 
 
 #if (ACC_CC_BORLANDC)
-#  if (__BORLANDC__ < 0x0520)
-#    error "need Borland C++ 5.02 or newer"
+#  if (__BORLANDC__ < 0x0500)
+#    error "need Borland C++ 5.0 or newer"
 #  endif
 #  pragma warn -aus     // 8004: 'x' is assigned a value that is never used
 #  pragma warn -inl     // 8026+8027: Function not expanded inline
diff --git a/src/main.cpp b/src/main.cpp
index a246530b..14be0b44 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1018,7 +1018,6 @@ void upx_sanity_check(void)
     COMPILE_TIME_ASSERT(sizeof(int) == 4)
     COMPILE_TIME_ASSERT(sizeof(long) >= 4)
     COMPILE_TIME_ASSERT(sizeof(void *) >= 4)
-    COMPILE_TIME_ASSERT(sizeof(long) >= sizeof(void *))
 
     COMPILE_TIME_ASSERT(sizeof(off_t) >= sizeof(long))
     COMPILE_TIME_ASSERT(((off_t) -1) < 0)
diff --git a/src/p_lx_sh.cpp b/src/p_lx_sh.cpp
index ff7b48c2..aa0fde41 100644
--- a/src/p_lx_sh.cpp
+++ b/src/p_lx_sh.cpp
@@ -92,7 +92,7 @@ void PackLinuxI386sh::patchLoader() { }
 bool PackLinuxI386sh::getShellName(char *buf)
 {
     exetype = -1;
-    l_shname = strcspn(buf, " \t\n\v\f\r");
+    l_shname = (int) strcspn(buf, " \t\n\v\f\r");
     buf[l_shname] = 0;
     static char const *const shname[] = { // known shells that accept "-c" arg
         "ash", "bash", "bsh", "csh", "ksh", "pdksh", "sh", "tcsh", "zsh",
diff --git a/src/packer.cpp b/src/packer.cpp
index e581a341..5548c708 100644
--- a/src/packer.cpp
+++ b/src/packer.cpp
@@ -910,7 +910,7 @@ unsigned Packer::unoptimizeReloc32(upx_byte **in, upx_byte *image,
     }
     //fprintf(stderr,"relocnum=%x\n",relocn);
     *in = p+1;
-    return relocs - outp;
+    return (unsigned) (relocs - outp);
 }
 
 
diff --git a/src/snprintf.cpp b/src/snprintf.cpp
index 38e672f7..952a417f 100644
--- a/src/snprintf.cpp
+++ b/src/snprintf.cpp
@@ -710,7 +710,7 @@ static size_t dopr(char *buffer, size_t maxlen, const char *format, va_list args
                 break;
             case 'p':
                 strvalue = (const char *) va_arg (args, const void *);
-                fmtint (buffer, &currlen, maxlen, (long) strvalue, 16, min, max, flags);
+                fmtint (buffer, &currlen, maxlen, (LLONG) (acc_uintptr_t) strvalue, 16, min, max, flags);
                 break;
             case 'n':
                 if (cflags == DP_C_SHORT) {
diff --git a/src/util.cpp b/src/util.cpp
index bf869959..c4337e68 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -538,7 +538,15 @@ unsigned get_ratio(unsigned u_len, unsigned c_len)
     const unsigned n = 1000000;
     if (u_len <= 0)
         return c_len <= 0 ? 0 : n;
+#if defined(acc_uint64l_t)
     return (unsigned) ((c_len * (acc_uint64l_t)n) / u_len);
+#else
+# if 0
+    return (unsigned) acc_umuldiv32(c_len, n, u_len);
+# else
+    return (unsigned) ((c_len * (double)n) / u_len);
+# endif
+#endif
 }