onlyoffice-core: try to fix out of memory

Hello @alain.takoudjou  could you please try to build this branch. 

/reviewed-on nexedi/slapos!305

component/onlyoffice-core/buildout.cfg

 [buildout]
 extends =
+  ../binutils/buildout.cfg
   ../gcc/buildout.cfg
   ../libxml2/buildout.cfg
   ../zlib/buildout.cfg
@@ -15,12 +16,12 @@ recipe = slapos.recipe.cmmi
 location = ${buildout:parts-directory}/${:_buildout_section_name_}
 # This url contains the hash provided by the DocumentServer core submodule hash.
 # https://github.com/ONLYOFFICE/DocumentServer/
-url = https://lab.nexedi.com/bk/onlyoffice_core/repository/archive.tar.bz2?ref=b051e75b179b3599c09937668fbbd2d7e2c50683
-md5sum = b2713373d687dd1c7121c286fa156626
+url = https://lab.nexedi.com/bk/onlyoffice_core/repository/archive.tar.bz2?ref=8a40eb47bd80a40ecde14c223525b21852d2fc9f
+md5sum = 9cd1cd731202511e475971eee58ba7b6
 configure-command = true
 make-targets = lib bin
 environment =
-  PATH=${gcc:location}/bin:${qt5-qmake:location}/bin:%(PATH)s
+  PATH=${binutils:location}/bin:${gcc:location}/bin:${qt5-qmake:location}/bin:%(PATH)s
   CXXFLAGS=-I${libxml2:location}/include -I${zlib:location}/include -I${icu4c-slaposgcc:location}/include -I${boost-lib:location}/include -Wno-comment -Wno-deprecated-declarations -Wno-endif-labels -Wno-parentheses -Wno-reorder -Wno-sign-compare -Wno-switch -Wno-unknown-pragmas -Wno-unused
   LDFLAGS=-L${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib -L${gcc:location}/lib64 -Wl,-rpath=${gcc:location}/lib64 -L${libxml2:location}/lib -Wl,-rpath=${libxml2:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${icu4c-slaposgcc:location}/lib -Wl,-rpath=${icu4c-slaposgcc:location}/lib -L${boost-lib:location}/lib -Wl,-rpath=${boost-lib:location}/lib -Wl,-rpath=${:location}/lib
 post-install =