add native deps to opam

.travis.yml

@@ -48,10 +48,6 @@ install_linux: &install_linux
       ninja-build
       awscli
       $JOB_DEPENDENCIES
-  - wget https://raw.github.com/ocaml/opam/master/shell/opam_installer.sh -O - | sh -s /usr/local/bin system
-  - opam update
-  - opam pin add haxe . --no-action
-  - opam install haxe --deps-only
   # install neko
   - if [ ! $DEPLOY_NIGHTLIES ]; then
       sudo add-apt-repository ppa:haxe/snapshots -y;
@@ -82,6 +78,11 @@ install_linux: &install_linux
   # Setup JDK
   - jdk_switcher use oraclejdk7
   - java -version
+  # ocaml dependencies
+  - wget https://raw.github.com/ocaml/opam/master/shell/opam_installer.sh -O - | sh -s /usr/local/bin system
+  - opam update
+  - opam pin add haxe . --no-action
+  - opam install haxe --deps-only
   # Build haxe
   - make package_src -s
   - opam config exec -- make -s STATICLINK=1 libs
@@ -100,11 +101,6 @@ install_osx: &install_osx
   - brew uninstall --force brew-cask # https://github.com/caskroom/homebrew-cask/pull/15381
   - travis_retry brew tap Homebrew/bundle
   - travis_retry brew bundle --file=tests/Brewfile
-  - opam init
-  - eval `opam config env`
-  - opam update
-  - opam pin add haxe . --no-action
-  - opam install haxe --deps-only
   # install neko
   - if [ ! $DEPLOY_NIGHTLIES ]; then
       brew install neko --HEAD;
@@ -131,6 +127,12 @@ install_osx: &install_osx
       sudo ninja install;
       popd;
     fi
+  # ocaml dependencies
+  - opam init
+  - eval `opam config env`
+  - opam update
+  - opam pin add haxe . --no-action
+  - opam install haxe --deps-only
   # Build haxe
   - make -s STATICLINK=1 "LIB_PARAMS=/usr/local/opt/zlib/lib/libz.a /usr/local/lib/libpcre.a" libs
   - make -s -j STATICLINK=1 "LIB_PARAMS=/usr/local/opt/zlib/lib/libz.a /usr/local/lib/libpcre.a" haxe

opam

@@ -13,12 +13,15 @@ build: [
 install: [make "install" "INSTALL_DIR=%{prefix}%"]
 remove: [make "uninstall" "INSTALL_DIR=%{prefix}%"]
 depends: [
-  "ocamlfind" {build}
-  "camlp4"    {build}
-  "sedlex"    {build}
-  "xml-light" {build}
-  "extlib"    {build & >= "1.7"}
-  "rope"      {build}
-  "ptmap"     {build}
+  "ocamlfind"    {build}
+  "camlp4"       {build}
+  "sedlex"       {build}
+  "xml-light"    {build}
+  "extlib"       {build & >= "1.7"}
+  "rope"         {build}
+  "ptmap"        {build}
+  "conf-libpcre"
+  "conf-zlib"
+  "conf-neko"
 ]
 available: [ ocaml-version > "4.02" ]