onlyoffice-core, icu, qt: use custom gcc

component/icu/buildout.cfg

 [buildout]
-
+extends =
+  ../gcc/buildout.cfg
 parts = icu4c
 
 [icu4c]
+# need for couchdb
 recipe = slapos.recipe.cmmi
 location = ${buildout:parts-directory}/${:_buildout_section_name_}
 url = http://download.icu-project.org/files/icu4c/58.2/icu4c-58_2-src.tgz
@@ -13,6 +15,14 @@ configure-options =
   --disable-static
   --enable-rpath
 
+[icu4c-slaposgcc]
+# need for onlyoffice-core
+<= icu4c
+environment =
+  PATH=${gcc:location}/bin:%(PATH)s
+  LD_LIBRARY_PATH=${gcc:location}/lib
+  LDFLAGS=-Wl,-rpath=${gcc:location}/lib
+
 [icu]
 <= icu4c
 

component/onlyoffice-core/buildout.cfg

 [buildout]
 extends =
+  ../gcc/buildout.cfg
   ../libxml2/buildout.cfg
   ../zlib/buildout.cfg
   ../icu/buildout.cfg
@@ -19,9 +20,9 @@ md5sum = b2713373d687dd1c7121c286fa156626
 configure-command = true
 make-targets = lib bin
 environment =
-  PATH=${qt5-qmake:location}/bin:%(PATH)s
-  CXXFLAGS=-I${libxml2:location}/include -I${zlib:location}/include -I${icu4c:location}/include -I${onlyoffice-boost:location}/include -Wno-comment -Wno-deprecated-declarations -Wno-endif-labels -Wno-parentheses -Wno-reorder -Wno-sign-compare -Wno-switch -Wno-unknown-pragmas -Wno-unused
-  LDFLAGS=-L${libxml2:location}/lib -Wl,-rpath=${libxml2:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${icu4c:location}/lib -Wl,-rpath=${icu4c:location}/lib -L${onlyoffice-boost:location}/lib -Wl,-rpath=${onlyoffice-boost:location}/lib -Wl,-rpath=${:location}/lib
+  PATH=${gcc:location}/bin:${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${libxml2:location}/lib -Wl,-rpath=${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 =
   set -e -x
   mkdir -p ${:location}/bin ${:location}/lib
@@ -29,18 +30,3 @@ post-install =
   mv -t ${:location}/bin build/bin/*/*
 # the binary linux_64 in build/bin/AllFontsGen is renamed AllFontsGen here.
 #  mv build/bin/AllFontsGen/* ${:location}/bin/AllFontsGen
-
-[onlyoffice-boost]
-recipe = slapos.recipe.cmmi
-url = http://downloads.sourceforge.net/sourceforge/boost/boost_1_58_0.tar.bz2
-md5sum = b8839650e61e9c1c0a89f371dd475546
-location = ${buildout:parts-directory}/${:_buildout_section_name_}
-configure-command = ./bootstrap.sh --prefix=${:location} --with-python=${python2.7:location}/bin/python2.7 --with-libraries=regex --with-icu=${icu4c:location}
-make-binary =
-make-options =
-make-targets = ./b2 link=shared dll-path=${:location}/lib:${bzip2:location}/lib:${zlib:location}/lib:${icu4c:location}/lib install
-environment =
-  BZIP2_INCLUDE=${bzip2:location}/include
-  BZIP2_LIBPATH=${bzip2:location}/lib
-  ZLIB_INCLUDE=${zlib:location}/include
-  ZLIB_LIBPATH=${zlib:location}/lib

component/qt/buildout.cfg

 [buildout]
 extends =
   ../xorg/buildout.cfg
+  ../gcc/buildout.cfg
 
 parts =
   qt4-qmake
@@ -22,8 +23,9 @@ configure-options =
   -no-opengl
   -nomake examples
 environment =
+  PATH=${gcc:location}/bin:%(PATH)s
   CPPFLAGS=-I${libX11:location}/include -I${xproto:location}/include -I${libXext:location}/include
-  LDFLAGS=-L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -L${xproto:location}/lib -Wl,-rpath=${xproto:location}/lib -L${libXext:location}/lib -Wl,-rpath=${libXext:location}/lib
+  LDFLAGS=-L${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib -L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -L${xproto:location}/lib -Wl,-rpath=${xproto:location}/lib -L${libXext:location}/lib -Wl,-rpath=${libXext:location}/lib
 make-binary = true
 post-install =
   mkdir -p ${:location}/bin