Make qt-win32 gitian build deterministic

contrib/gitian-descriptors/qt-win32.yml

@@ -20,22 +20,35 @@ script: |
   #
   tar xzf qt-everywhere-opensource-src-4.7.4.tar.gz
   cd qt-everywhere-opensource-src-4.7.4
+  sed 's/$TODAY/2011-01-30/' -i configure
   sed 's/i686-pc-mingw32-/i586-mingw32msvc-/' -i mkspecs/unsupported/win32-g++-cross/qmake.conf
-  sed --posix 's|QMAKE_CFLAGS\t\t= -pipe|QMAKE_CFLAGS\t\t= -pipe -isystem /usr/i586-mingw32msvc/include/|' -i mkspecs/unsupported/win32-g++-cross/qmake.conf
+  sed --posix 's|QMAKE_CFLAGS\t\t= -pipe|QMAKE_CFLAGS\t\t= -pipe -isystem /usr/i586-mingw32msvc/include/ -frandom-seed=qtbuild|' -i mkspecs/unsupported/win32-g++-cross/qmake.conf
   sed 's/QMAKE_CXXFLAGS_EXCEPTIONS_ON = -fexceptions -mthreads/QMAKE_CXXFLAGS_EXCEPTIONS_ON = -fexceptions/' -i mkspecs/unsupported/win32-g++-cross/qmake.conf
   sed 's/QMAKE_LFLAGS_EXCEPTIONS_ON = -mthreads/QMAKE_LFLAGS_EXCEPTIONS_ON = -lmingwthrd/' -i mkspecs/unsupported/win32-g++-cross/qmake.conf
   sed --posix 's/QMAKE_MOC\t\t= i586-mingw32msvc-moc/QMAKE_MOC\t\t= moc/' -i mkspecs/unsupported/win32-g++-cross/qmake.conf
   sed --posix 's/QMAKE_RCC\t\t= i586-mingw32msvc-rcc/QMAKE_RCC\t\t= rcc/' -i mkspecs/unsupported/win32-g++-cross/qmake.conf
   sed --posix 's/QMAKE_UIC\t\t= i586-mingw32msvc-uic/QMAKE_UIC\t\t= uic/' -i mkspecs/unsupported/win32-g++-cross/qmake.conf
-  export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
+  # 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\t\t= i586-mingw32msvc-ar -ru|QMAKE_LIB\t\t= $HOME/ar -Dr|" -i mkspecs/unsupported/win32-g++-cross/qmake.conf
+  echo '#!/bin/bash' > $HOME/ar
+  echo 'export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1' >> $HOME/ar
+  echo 'i586-mingw32msvc-ar "$@"' >> $HOME/ar
+  chmod +x $HOME/ar
+  #export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
   export FAKETIME=$REFERENCE_DATETIME
   export TZ=UTC
-  ./configure -prefix $INSTDIR -confirm-license -release -opensource -static -no-qt3support -xplatform unsupported/win32-g++-cross -no-multimedia -no-audio-backend -no-phonon -no-phonon-backend -nomake examples -nomake demos -nomake docs
+  ./configure -prefix $INSTDIR -confirm-license -release -opensource -static -no-qt3support -xplatform unsupported/win32-g++-cross -no-multimedia -no-audio-backend -no-phonon -no-phonon-backend -no-declarative -no-script -no-scripttools -no-javascript-jit  -no-webkit -no-svg -no-xmlpatterns -no-sql-sqlite -no-nis -no-cups -no-iconv -no-dbus -no-gif -no-libtiff -opengl no -nomake examples -nomake demos -nomake docs
   find . -name *.prl | xargs -l sed 's|/\.||' -i
   find . -name *.prl | xargs -l sed 's|/$||' -i
   make $MAKEOPTS install
   cp -a bin $SRCDIR/
   cd $INSTDIR
   find . -name *.prl | xargs -l sed 's|/$||' -i
-  sed 's|QMAKE_PRL_LIBS.*|QMAKE_PRL_LIBS = -lQtDeclarative -lQtScript -lQtSvg -lQtSql -lQtXmlPatterns -lQtGui -lgdi32 -lcomdlg32 -loleaut32 -limm32 -lwinmm -lwinspool -lmsimg32 -lQtNetwork -lQtCore -lole32 -luuid -lws2_32 -ladvapi32 -lshell32 -luser32 -lkernel32|' -i imports/Qt/labs/particles/qmlparticlesplugin.prl
+  #sed 's|QMAKE_PRL_LIBS.*|QMAKE_PRL_LIBS = -lQtDeclarative -lQtScript -lQtSvg -lQtSql -lQtXmlPatterns -lQtGui -lgdi32 -lcomdlg32 -loleaut32 -limm32 -lwinmm -lwinspool -lmsimg32 -lQtNetwork -lQtCore -lole32 -luuid -lws2_32 -ladvapi32 -lshell32 -luser32 -lkernel32|' -i imports/Qt/labs/particles/qmlparticlesplugin.prl
+
+  # 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-win32-4.7.4-gitian.zip *