--- mozilla.pure/configure	2008-06-16 00:25:31.000000000 +0200
+++ mozilla/configure	2008-11-09 23:59:19.984375000 +0100
@@ -1068,6 +1068,8 @@
 GCONF_VERSION=1.2.1
 LIBGNOME_VERSION=2.0
 
+MSMANIFEST_TOOL=
+
 MISSING_X=
 for ac_prog in gawk mawk nawk awk
 do
@@ -3025,6 +3027,22 @@
         else
             { echo "configure: error: This version of the MSVC compiler, $CC_VERSION , is unsupported." 1>&2; exit 1; }
         fi
+	
+	# bug #249782
+	# ensure that mt.exe is Microsoft (R) Manifest Tool and not magnetic tape manipulation utility (or something else)
+	if test "$_CC_SUITE" -ge "8"; then
+		MSMT_TOOL=`mt 2>&1|grep 'Microsoft (R) Manifest Tool'`
+		if test -n "MSMT_TOOL"; then
+			MSMANIFEST_TOOL_VERSION=`echo ${MSMANIFEST_TOOL}|grep -Po "(^|\s)[0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?(\s|$)"`
+			if test -z "MSMANIFEST_TOOL_VERSION"; then
+				echo "configure: warning: Unknown version of the Microsoft (R) Manifest Tool." 1>&2
+			fi
+			MSMANIFEST_TOOL=1
+			unset MSMT_TOOL
+		else
+			{ echo "Microsoft (R) Manifest Tool must be in your \$PATH." 1>&2; exit 1; }
+		fi
+	fi
 
         # Check linker version
         _LD_FULL_VERSION=`"${LD}" -v 2>&1 | sed -ne "$_MSVC_VER_FILTER"`
--- mozilla.pure/configure.in	2008-06-16 00:25:32.000000000 +0200
+++ mozilla/configure.in	2008-11-09 23:59:20.000000000 +0100
@@ -126,6 +126,8 @@
 GCONF_VERSION=1.2.1
 LIBGNOME_VERSION=2.0
 
+MSMANIFEST_TOOL=
+
 dnl Set various checks
 dnl ========================================================
 MISSING_X=
@@ -428,6 +430,22 @@
         else
             AC_MSG_ERROR([This version of the MSVC compiler, $CC_VERSION , is unsupported.])
         fi
+	
+	# bug #249782
+	# ensure that mt.exe is Microsoft (R) Manifest Tool and not magnetic tape manipulation utility (or something else)
+	if test "$_CC_SUITE" -ge "8"; then
+		MSMT_TOOL=`mt 2>&1|grep 'Microsoft (R) Manifest Tool'`
+		if test -n "MSMT_TOOL"; then
+			MSMANIFEST_TOOL_VERSION=`echo ${MSMANIFEST_TOOL}|grep -Po "(^|\s)[0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?(\s|$)"`
+			if test -z "MSMANIFEST_TOOL_VERSION"; then
+				AC_MSG_WARN([Unknown version of the Microsoft (R) Manifest Tool.])
+			fi
+			MSMANIFEST_TOOL=1
+			unset MSMT_TOOL
+		else
+			AC_MSG_ERROR([Microsoft (R) Manifest Tool must be in your \$PATH.])
+		fi
+	fi
 
         # Check linker version
         _LD_FULL_VERSION=`"${LD}" -v 2>&1 | sed -ne "$_MSVC_VER_FILTER"`
@@ -7319,6 +7339,7 @@
 AC_SUBST(USE_N32)
 AC_SUBST(CC_VERSION)
 AC_SUBST(CXX_VERSION)
+AC_SUBST(MSMANIFEST_TOOL)
 
 if test "$USING_HCC"; then
    CC='${topsrcdir}/build/hcc'
--- mozilla.pure/config/rules.mk	2008-01-29 20:30:22.000000000 +0100
+++ mozilla/config/rules.mk	2008-11-09 23:59:19.968750000 +0100
@@ -811,6 +812,12 @@
 
 ifeq (_WINNT,$(GNU_CC)_$(OS_ARCH))
 	$(LD) -NOLOGO -OUT:$@ -PDB:$(PDBFILE) $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(PROGOBJS) $(RESFILE) $(LIBS) $(EXTRA_LIBS) $(OS_LIBS)
+ifdef MSMANIFEST_TOOL
+	@if test -f $@.manifest; then \
+		mt.exe -NOLOGO -MANIFEST $@.manifest -OUTPUTRESOURCE:$@\;1; \
+		rm -f $@.manifest; \
+	fi
+endif	# MSVC with manifest tool
 else
 ifeq ($(CPP_PROG_LINK),1)
 	$(CCC) -o $@ $(CXXFLAGS) $(WRAP_MALLOC_CFLAGS) $(PROGOBJS) $(RESFILE) $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(LIBS_DIR) $(LIBS) $(OS_LIBS) $(EXTRA_LIBS) $(BIN_FLAGS) $(WRAP_MALLOC_LIB) $(PROFILER_LIBS) $(EXE_DEF_FILE)
@@ -843,6 +850,12 @@
 else
 ifeq (_WINNT,$(GNU_CC)_$(HOST_OS_ARCH))
 	$(HOST_LD) -NOLOGO -OUT:$@ -PDB:$(PDBFILE) $(HOST_OBJS) $(WIN32_EXE_LDFLAGS) $(HOST_LIBS) $(HOST_EXTRA_LIBS)
+ifdef MSMANIFEST_TOOL
+	@if test -f $@.manifest; then \
+		mt.exe -NOLOGO -MANIFEST $@.manifest -OUTPUTRESOURCE:$@\;1; \
+		rm -f $@.manifest; \
+	fi
+endif	# MSVC with manifest tool
 else
 	$(HOST_CC) -o $@ $(HOST_CFLAGS) $(HOST_LDFLAGS) $(HOST_PROGOBJS) $(HOST_LIBS) $(HOST_EXTRA_LIBS)
 endif
@@ -866,6 +879,12 @@
 else
 ifeq (_WINNT,$(GNU_CC)_$(OS_ARCH))
 	$(LD) -nologo -out:$@ -pdb:$(PDBFILE) $< $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(LIBS) $(EXTRA_LIBS) $(OS_LIBS)
+ifdef MSMANIFEST_TOOL
+	@if test -f $@.manifest; then \
+		mt.exe -NOLOGO -MANIFEST $@.manifest -OUTPUTRESOURCE:$@\;1; \
+		rm -f $@.manifest; \
+	fi
+endif	# MSVC with manifest tool
 else
 ifeq ($(CPP_PROG_LINK),1)
 	$(CCC) $(WRAP_MALLOC_CFLAGS) $(CXXFLAGS) -o $@ $< $(WIN32_EXE_LDFLAGS) $(LDFLAGS) $(LIBS_DIR) $(LIBS) $(OS_LIBS) $(EXTRA_LIBS) $(WRAP_MALLOC_LIB) $(PROFILER_LIBS) $(BIN_FLAGS)
@@ -1019,6 +1038,14 @@
 endif # SHARED_LIBRARY_LIBS
 endif # NO_LD_ARCHIVE_FLAGS
 	$(MKSHLIB) $(SHLIB_LDSTARTFILE) $(OBJS) $(LOBJS) $(SUB_SHLOBJS) $(RESFILE) $(LDFLAGS) $(EXTRA_DSO_LDOPTS) $(OS_LIBS) $(EXTRA_LIBS) $(DEF_FILE) $(SHLIB_LDENDFILE)
+ifeq (_WINNT,$(GNU_CC)_$(OS_ARCH))
+ifdef MSMANIFEST_TOOL
+	@if test -f $@.manifest; then \
+		mt.exe -NOLOGO -MANIFEST $@.manifest -OUTPUTRESOURCE:$@\;2; \
+		rm -f $@.manifest; \
+	fi
+endif	# MSVC with manifest tool
+endif	# WINNT && !GCC
 	@rm -f foodummyfilefoo $(SUB_SHLOBJS) $(DELETE_AFTER_LINK)
 else # os2 vacpp
 	$(MKSHLIB) -O:$@ -DLL -INC:_dllentry $(LDFLAGS) $(OBJS) $(LOBJS) $(EXTRA_DSO_LDOPTS) $(OS_LIBS) $(EXTRA_LIBS) $(DEF_FILE)
--- mozilla.pure/config/autoconf.mk.in	2006-09-14 20:07:03.000000000 +0200
+++ mozilla/config/autoconf.mk.in	2008-11-09 23:59:19.953125000 +0100
@@ -543,6 +543,7 @@
 MOZ_TOOLS_DIR	= @MOZ_TOOLS_DIR@
 MOZ_DEBUG_SYMBOLS = @MOZ_DEBUG_SYMBOLS@
 MOZ_QUANTIFY	= @MOZ_QUANTIFY@
+MSMANIFEST_TOOL = @MSMANIFEST_TOOL@
 
 #python options
 PYTHON = @MOZ_PYTHON@