gour@atmarama:~$ opam install qocamlbrowser -v
+ opam install qocamlbrowser -v
The following actions will be performed:
 - install mocml.0.1.2 [required by qocamlbrowser]
 - install qocamlbrowser.0.1
2 to install | 0 to reinstall | 0 to upgrade | 0 to downgrade | 0 to remove
Do you want to continue ? [Y/n] y

=-=-= Installing mocml.0.1.2 =-=-=
Downloading https://github.com/Kakadu/lablqt/archive/master.tar.gz.
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   121  100   121    0     0    201      0 --:--:-- --:--:-- --:--:--   220
100  623k  100  623k    0     0   212k      0  0:00:02  0:00:02 --:--:--  430k
200Creating /home/gour/.opam/repo/lablqt/archives/mocml.0.1.2+opam.tar.gz.
Extracting /home/gour/.opam/archives/mocml.0.1.2+opam.tar.gz.
Building mocml.0.1.2:
  sh -c cd qml/lib && bash configure --datarootdir=/home/gour/.opam/4.01.0/lib
  sh -c cd qml/lib && make && make install
  sh -c cd qml && bash configure && make generator
  make -f Makefile.install PREFIX=/home/gour/.opam/4.01.0 MAN=/home/gour/.opam/4.01.0/man install

Configuration:
ocamlfind: ........................................... /home/gour/.opam/4.01.0/bin/ocamlfind
ocamlc: .............................................. /home/gour/.opam/4.01.0/bin/ocamlc.opt
ocamlopt: ............................................ /home/gour/.opam/4.01.0/bin/ocamlopt.opt
ocamlbuild: .......................................... /home/gour/.opam/4.01.0/bin/ocamlbuild
Package name: ........................................ lablqml
Package version: ..................................... 0.1
os_type: ............................................. Unix
system: .............................................. linux
architecture: ........................................ amd64
ccomp_type: .......................................... cc
ocaml_version: ....................................... 4.01.0
standard_library_default: ............................ /home/gour/.opam/4.01.0/lib/ocaml
standard_library: .................................... /home/gour/.opam/4.01.0/lib/ocaml
standard_runtime: .................................... /home/gour/.opam/4.01.0/bin/ocamlrun
bytecomp_c_compiler: ................................. gcc -fno-defer-pop -Wall -D_FILE_OFFSET_BITS=64 -D_REENTRANT -fPIC
native_c_compiler: ................................... gcc -Wall -D_FILE_OFFSET_BITS=64 -D_REENTRANT
model: ............................................... default
ext_obj: ............................................. .o
ext_asm: ............................................. .s
ext_lib: ............................................. .a
ext_dll: ............................................. .so
default_executable_name: ............................. a.out
systhread_supported: ................................. true
Install architecture-independent files dir: .......... /usr/local
Install architecture-dependent files in dir: ......... $prefix
User executables: .................................... $exec_prefix/bin
System admin executables: ............................ $exec_prefix/sbin
Program executables: ................................. $exec_prefix/libexec
Read-only single-machine data: ....................... $prefix/etc
Modifiable architecture-independent data: ............ $prefix/com
Modifiable single-machine data: ...................... $prefix/var
Object code libraries: ............................... $exec_prefix/lib
Read-only arch-independent data root: ................ /home/gour/.opam/4.01.0/lib
Read-only architecture-independent data: ............. $datarootdir
Info documentation: .................................. $datarootdir/info
Locale-dependent data: ............................... $datarootdir/locale
Man documentation: ................................... $datarootdir/man
Documentation root: .................................. $datarootdir/doc/$pkg_name
HTML documentation: .................................. $docdir
DVI documentation: ................................... $docdir
PDF documentation: ................................... $docdir
PS documentation: .................................... $docdir
findlib_version: ..................................... 1.4
is_native: ........................................... true
suffix_program: ......................................
Remove a file.: ...................................... rm -f
Remove a directory.: ................................. rm -rf
Turn ocaml debug flag on: ............................ true
Turn ocaml profile flag on: .......................... false
Compiler support generation of .cmxs.: ............... true
OCamlbuild additional flags: .........................
Create documentations: ............................... true
Compile tests executable and library and run them: ... false

ocaml setup.ml -build
/home/gour/.opam/4.01.0/bin/ocamlopt.opt unix.cmxa -I /home/gour/.opam/4.01.0/lib/ocaml/ocamlbuild /home/gour/.opam/4.01.0/lib/ocaml/ocamlbuild/ocamlbuildlib.cmxa myocamlbuild.ml /home/gour/.opam/4.01.0/lib/ocaml/ocamlbuild/ocamlbuild.cmx -o myocamlbuild
ocamlfind ocamlc -ccopt '-std=c++0x' -ccopt -x -ccopt c++ -ccopt '`pkg-config' -ccopt --cflags -ccopt 'Qt5Qml`' -ccopt -O2 -ccopt '-Dprivate=public' -c stubs.c
ocamlfind ocamlc -ccopt '-std=c++0x' -ccopt -x -ccopt c++ -ccopt '`pkg-config' -ccopt --cflags -ccopt 'Qt5Qml`' -ccopt -O2 -ccopt '-Dprivate=public' -c modelindex.c
/home/gour/.opam/4.01.0/bin/ocamlmklib -o lablqml_stubs stubs.o modelindex.o
ocamlfind ocamldep -modules QmlContext.mli > QmlContext.mli.depends
ocamlfind ocamlc -c -g -ccopt '-std=c++0x' -ccopt -x -ccopt c++ -ccopt '`pkg-config' -ccopt --cflags -ccopt 'Qt5Qml`' -ccopt -O2 -ccopt '-Dprivate=public' -o QmlContext.cmi QmlContext.mli
ocamlfind ocamldep -modules QmlContext.ml > QmlContext.ml.depends
ocamlfind ocamlc -c -g -ccopt '-std=c++0x' -ccopt -x -ccopt c++ -ccopt '`pkg-config' -ccopt --cflags -ccopt 'Qt5Qml`' -ccopt -O2 -ccopt '-Dprivate=public' -o QmlContext.cmo QmlContext.ml
ocamlfind ocamlc -a -dllib -llablqml_stubs -cclib -llablqml_stubs QmlContext.cmo -o lablqml.cma
ocamlfind ocamlopt -c -g -ccopt '-std=c++0x' -ccopt -x -ccopt c++ -ccopt '`pkg-config' -ccopt --cflags -ccopt 'Qt5Qml`' -ccopt -O2 -ccopt '-Dprivate=public' -o QmlContext.cmx QmlContext.ml
ocamlfind ocamlopt -a -cclib -llablqml_stubs QmlContext.cmx -o lablqml.cmxa
ocamlfind ocamlopt -shared -linkall -I . lablqml.cmxa -o lablqml.cmxs
ocaml setup.ml -install
Installed /home/gour/.opam/4.01.0/lib/lablqml/QmlContext.mli
Installed /home/gour/.opam/4.01.0/lib/lablqml/liblablqml_stubs.a
Installed /home/gour/.opam/4.01.0/lib/lablqml/lablqml.cma
Installed /home/gour/.opam/4.01.0/lib/lablqml/lablqml.cmxs
Installed /home/gour/.opam/4.01.0/lib/lablqml/lablqml.cmxa
Installed /home/gour/.opam/4.01.0/lib/lablqml/lablqml.a
Installed /home/gour/.opam/4.01.0/lib/lablqml/QmlContext.cmi
Installed /home/gour/.opam/4.01.0/lib/lablqml/QmlContext.cmx
Installed /home/gour/.opam/4.01.0/lib/lablqml/META
Installed /home/gour/.opam/4.01.0/lib/stublibs/dlllablqml_stubs.so
Installed /home/gour/.opam/4.01.0/lib/stublibs/dlllablqml_stubs.so.owner
ocamlfind: [WARNING] You have installed DLLs but the directory /home/gour/.opam/4.01.0/lib/stublibs is not mentioned in ld.conf
N.B. Don't forget to export right LD_LIBRARY_PATH and PKG_CONFIG_PATH for Qt5 before running this!
OCaml 4.01.0 found.
ocamlfind found.
qmake found for Qt 5.1.1
/usr/bin/ld: warning: libicui18n.so.51, needed by /home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so, not found (try using -rpath or -rpath-link)
/usr/bin/ld: warning: libicuuc.so.51, needed by /home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so, not found (try using -rpath or -rpath-link)
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getStandardName_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_close_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_strcoll_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getMaxCharSize_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `u_strToLower_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getAvailableName_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_open_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_toUnicode_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_getAttribute_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_close_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `u_errorName_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_setAttribute_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_countAliases_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getDefaultName_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_compareNames_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_open_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ures_open_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_setSubstChars_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_getSortKey_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_fromUnicode_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getAlias_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ures_getStringByKey_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_countAvailable_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ures_close_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `u_strToUpper_51'
collect2: error: ld returned 1 exit status
Linking test C++ application failed
N.B. If you are using Ubuntu 13.04 or precompiled Qt5 for website there is   a possibility that file 'Qt5Core.pc' has bug. You can consider to substitute line
    Libs: -L${libdir} -lQt5Core
  for
    Libs: -Wl,-rpath,${libdir} -L${libdir} -lQt5Core

The compilation of mocml.0.1.2 failed.
Uninstalling mocml.0.1.2:
  ocamlfind remove lablqml
  make -f Makefile.install PREFIX=/home/gour/.opam/4.01.0 MAN=/home/gour/.opam/4.01.0/man uninstall
Removed /home/gour/.opam/4.01.0/lib/stublibs/dlllablqml_stubs.so.owner
Removed /home/gour/.opam/4.01.0/lib/stublibs/dlllablqml_stubs.so
Removed /home/gour/.opam/4.01.0/lib/lablqml
rm -fr /home/gour/.opam/4.01.0/bin/mocml /home/gour/.opam/4.01.0/man/man1/mocml.1

Due to some errors while processing mocml.0.1.2, the following actions will NOT be proceeded:
 - install qocamlbrowser.0.1

==== ERROR [while installing mocml.0.1.2] ====
# opam-version    1.0.0
# os              linux
# command         sh -c cd qml && bash configure && make generator
# path            /home/gour/.opam/4.01.0/build/mocml.0.1.2
# exit-code       1
# env-file        /home/gour/.opam/4.01.0/build/mocml.0.1.2/mocml-335865.env
# stdout-file     /home/gour/.opam/4.01.0/build/mocml.0.1.2/mocml-335865.out
# stderr-file     /home/gour/.opam/4.01.0/build/mocml.0.1.2/mocml-335865.err
### stdout ###
...[truncated]
N.B. Don't forget to export right LD_LIBRARY_PATH and PKG_CONFIG_PATH for Qt5 before running this!
OCaml 4.01.0 found.
ocamlfind found.
qmake found for Qt 5.1.1
Linking test C++ application failed
N.B. If you are using Ubuntu 13.04 or precompiled Qt5 for website there is   a possibility that file 'Qt5Core.pc' has bug. You can consider to substitute line
    Libs: -L${libdir} -lQt5Core
  for
    Libs: -Wl,-rpath,${libdir} -L${libdir} -lQt5Core

### stderr ###
...[truncated]
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ures_open_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_setSubstChars_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucol_getSortKey_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_fromUnicode_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_getAlias_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ures_getStringByKey_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ucnv_countAvailable_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `ures_close_51'
/home/gour/Qt/5.1.1/gcc_64/lib/libQt5Core.so: undefined reference to `u_strToUpper_51'
collect2: error: ld returned 1 exit status

'opam install qocamlbrowser -v' failed.