diff --git a/contrib/gitian-descriptors/boost-win.yml b/contrib/gitian-descriptors/boost-win.yml
index 15aeccf54..420a7ce76 100644
--- a/contrib/gitian-descriptors/boost-win.yml
+++ b/contrib/gitian-descriptors/boost-win.yml
@@ -16,6 +16,8 @@ files:
 - "boost-mingw-gas-cross-compile-2013-03-03.patch"
 script: |
   # Defines
+  export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
+  export FAKETIME=$REFERENCE_DATETIME
   export TZ=UTC
   INDIR=$HOME/build
   # Input Integrity Check
@@ -35,7 +37,7 @@ script: |
     mkdir -p $INSTALLPREFIX $BUILDDIR
     cd $BUILDDIR
     #
-    tar xjf $INDIR/boost_1_55_0.tar.bz2
+    tar --warning=no-timestamp -xjf $INDIR/boost_1_55_0.tar.bz2
     cd boost_1_55_0
     GCCVERSION=$($HOST-g++ -E -dM $(mktemp --suffix=.h) | grep __VERSION__ | cut -d ' ' -f 3 | cut -d '"' -f 2)
     echo "using gcc : $GCCVERSION : $HOST-g++
@@ -70,10 +72,6 @@ script: |
     ./bjam toolset=gcc binary-format=pe target-os=windows threadapi=win32 address-model=$BITS threading=multi variant=release link=static runtime-link=static --user-config=user-config.jam --without-mpi --without-python -sNO_BZIP2=1 -sNO_ZLIB=1 --layout=tagged --build-type=complete --prefix="$INSTALLPREFIX" $MAKEOPTS install
     #
     cd "$INSTALLPREFIX"
-    export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
-    export FAKETIME=$REFERENCE_DATETIME
-    zip -r $OUTDIR/boost-win$BITS-1.55.0-gitian-r6.zip *
-    unset LD_PRELOAD
-    unset FAKETIME
+    find | sort | zip -@ $OUTDIR/boost-win$BITS-1.55.0-gitian-r6.zip
   done # for BITS in
 
diff --git a/contrib/gitian-descriptors/deps-win.yml b/contrib/gitian-descriptors/deps-win.yml
index 13d3a86fd..ef0f8f331 100644
--- a/contrib/gitian-descriptors/deps-win.yml
+++ b/contrib/gitian-descriptors/deps-win.yml
@@ -107,11 +107,13 @@ script: |
     #
     tar xjf $INDIR/qrencode-3.4.3.tar.bz2
     cd qrencode-3.4.3
-    png_CFLAGS="-I$INSTALLPREFIX/include" png_LIBS="-L$INSTALLPREFIX/lib -lpng" ./configure --prefix=$INSTALLPREFIX --host=$HOST --enable-static --disable-shared --without-tools --disable-maintainer-mode --disable-dependency-tracking
+    png_CFLAGS="-I$INSTALLPREFIX/include" png_LIBS="-L$INSTALLPREFIX/lib -lpng" ./configure --prefix=$INSTALLPREFIX --host=$HOST --enable-static --disable-shared --without-tools --disable-dependency-tracking
+    # Workaround to prevent re-configuring by make (resulting in missing m4 error); make all files have a date in the past
+    find . -print0 | xargs -r0 touch -t 200001010000
     make
     make install
     cd ..
     #
     cd $INSTALLPREFIX
-    zip -r $OUTDIR/bitcoin-deps-win$BITS-gitian-r10.zip include lib
+    find include lib | sort | zip -@ $OUTDIR/bitcoin-deps-win$BITS-gitian-r10.zip
   done # for BITS in
diff --git a/contrib/gitian-descriptors/protobuf-win.yml b/contrib/gitian-descriptors/protobuf-win.yml
index 7fcac72fe..11dd50de1 100644
--- a/contrib/gitian-descriptors/protobuf-win.yml
+++ b/contrib/gitian-descriptors/protobuf-win.yml
@@ -44,13 +44,13 @@ script: |
     # Now recompile with the mingw cross-compiler:
     make distclean
     ./configure --prefix=$INSTALLPREFIX --enable-shared=no --disable-dependency-tracking --with-protoc=$INSTALLPREFIX/host/bin/protoc --host=$HOST CXXFLAGS="-frandom-seed=11 ${OPTFLAGS}"
+    export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
+    export FAKETIME=$REFERENCE_DATETIME
     make
     make install
     #
     cd $INSTALLPREFIX
-    export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
-    export FAKETIME=$REFERENCE_DATETIME
-    zip -r $OUTDIR/protobuf-win$BITS-2.5.0-gitian-r4.zip include lib host
+    find include lib host | sort | zip -@ $OUTDIR/protobuf-win$BITS-2.5.0-gitian-r4.zip
     unset LD_PRELOAD
     unset FAKETIME
   done # for BITS in
diff --git a/contrib/gitian-descriptors/qt-win.yml b/contrib/gitian-descriptors/qt-win.yml
index fed39cbc7..0352f4ff9 100644
--- a/contrib/gitian-descriptors/qt-win.yml
+++ b/contrib/gitian-descriptors/qt-win.yml
@@ -55,18 +55,9 @@ script: |
     cd qt-everywhere-opensource-src-5.2.0
     SPECNAME="win32-g++"
     SPECFILE="qtbase/mkspecs/${SPECNAME}/qmake.conf"
-    sed 's/$TODAY/2011-01-30/' -i configure
+    sed 's/qt_instdate=`date +%Y-%m-%d`/qt_instdate=2011-01-30/' -i qtbase/configure
     sed --posix "s|QMAKE_CFLAGS            = -pipe -fno-keep-inline-dllexport|QMAKE_CFLAGS\t\t= -pipe -fno-keep-inline-dllexport -isystem /usr/$HOST/include/ -frandom-seed=qtbuild -I$DEPSDIR/include|" -i ${SPECFILE}
     sed --posix "s|QMAKE_LFLAGS            =|QMAKE_LFLAGS\t\t= -L$DEPSDIR/lib|" -i ${SPECFILE}
-    # ar adds timestamps to every object file included in the static library
-    # providing -D as ar argument is supposed to solve it, but doesn't work as qmake strips off the arguments and adds -M to pass a script...
-    # which somehow cannot be combined with other flags.
-    # use faketime only for ar, as it confuses make/qmake into hanging sometimes
-    sed --posix "s|QMAKE_LIB               = \\\$\\\${CROSS_COMPILE}ar -ru|QMAKE_LIB\t\t= $HOME/ar -Dr|" -i ${SPECFILE}
-    echo '#!/bin/bash' > $HOME/ar
-    echo 'export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1' >> $HOME/ar
-    echo "$HOST-ar \"\$@\"" >> $HOME/ar
-    chmod +x $HOME/ar
     # Don't load faketime while compiling Qt, qmake will get stuck in nearly infinite loops
     #export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
     export FAKETIME=$REFERENCE_DATETIME
@@ -76,10 +67,12 @@ script: |
     make $MAKEOPTS install
     #
     cd $INSTALLPREFIX
-
+    # Remove unused non-deterministic stuff
+    rm host/bin/qtpaths.exe lib/libQt5Bootstrap.a lib/libQt5Bootstrap.la
     # as zip stores file timestamps, use faketime to intercept stat calls to set dates for all files to reference date
     export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
-    zip -r $OUTDIR/qt-win${BITS}-5.2.0-gitian-r2.zip *
+    find -print0 | xargs -r0 touch # fix up timestamps before packaging
+    find | sort | zip -@ $OUTDIR/qt-win${BITS}-5.2.0-gitian-r2.zip
     unset LD_PRELOAD
     unset FAKETIME
   done # for BITS in