xxx component/qt: try to improve qt5-qmake

component/qt/buildout.cfg

@@ -7,24 +7,34 @@ parts =
   qt4-qmake
 
 [qt5-qmake]
+# XXX does not work on all systems
 # building [qmake] will download the full qt source anyway ~200MB
-# qmake binary can be reached directly from ${qt:location}/bin/qmake if [qt] is fully built
+# qmake binary can be reached directly from ${qt:location}/qtbase/bin/qmake if [qt] is fully built
 recipe = slapos.recipe.cmmi
 location = ${buildout:parts-directory}/${:_buildout_section_name_}
 url = http://download.qt.io/official_releases/qt/5.6/5.6.2/single/qt-everywhere-opensource-src-5.6.2.tar.gz
 md5sum = 1b1b1f929d0cd83680354a0c83d8e945
-# see https://github.com/NixOS/nixpkgs/blob/3e387c3e005c87566b5403d24c86f71f4945a79b/pkgs/development/libraries/qt-4.x/4.8/default.nix#L101
 environment =
   CFLAGS=-I${mesa:location}/include
   CPPFLAGS=-I${mesa:location}/include
   CXXFLAGS=-I${mesa:location}/include
   LD_LIBRARY_PATH=${mesa:location}/lib
-configure-command =
-  sed 's,/usr/X11R6/lib64,${libX11:location}/lib64 ${xproto:location}/lib64 ${libXext:location}/lib64,g' -i mkspecs/*/*.conf
-  sed 's,/usr/X11R6/lib,${libX11:location}/lib ${xproto:location}/lib ${libXext:location}/lib,g' -i mkspecs/*/*.conf
-  sed 's,/usr/X11R6/include,${libX11:location}/include ${xproto:location}/include ${libXext:location}/include,g' -i mkspecs/*/*.conf
+pre-configure-QMAKE_INCDIR_X11 =
+  ${libX11:location}/include
+  ${xproto:location}/include
+  ${libXext:location}/include
+pre-configure-QMAKE_LIBDIR_X11 =
+  ${libX11:location}/lib64 ${libX11:location}/lib
+  ${xproto:location}/lib64 ${xproto:location}/lib
+  ${libXext:location}/lib64 ${libXext:location}/lib
+pre-configure =
+  set -e -x
+  qmake_incdir_x11=$(echo " ${:pre-configure-QMAKE_INCDIR_X11}" | sed ':a;N;$!ba;s/\n/ /g')
+  qmake_libdir_x11=$(echo " ${:pre-configure-QMAKE_LIBDIR_X11}" | sed ':a;N;$!ba;s/\n/ /g')
+  sed 's:QMAKE_INCDIR_X11\s*=:QMAKE_INCDIR_X11 ='"$qmake_incdir_x11:g" -i qtbase/mkspecs/*/*.conf
+  sed 's:QMAKE_LIBDIR_X11\s*=:QMAKE_LIBDIR_X11 ='"$qmake_libdir_x11:g" -i qtbase/mkspecs/*/*.conf
 # it helped me : http://stackoverflow.com/questions/24264940/compile-qt5-without-gui-support-on-linux-arm
-  ./configure --prefix=${:location} -v -no-separate-debug-info -release -confirm-license -opensource -no-opengl -nomake examples
+configure-command = ./configure --prefix=${:location} -v -no-separate-debug-info -release -confirm-license -opensource -no-opengl -nomake examples
 make-targets = qmake
 post-install =
   cp -rt ${:location} *