diff --git a/gitlab/conda_build_config.yaml b/gitlab/conda_build_config.yaml
index cd996b9114bab0ce6d8427ff4062b37d9f0ce8c2..d3e9b25c6cac563ce0ae02e3d316923c46d8af53 100644
--- a/gitlab/conda_build_config.yaml
+++ b/gitlab/conda_build_config.yaml
@@ -1,3 +1,10 @@
+macos_min_version:              # [osx]
+  - 10.9                        # [osx]
+macos_machine:                  # [osx]
+  - x86_64-apple-darwin13.4.0   # [osx]
+MACOSX_DEPLOYMENT_TARGET:       # [osx]
+  - 10.9                        # [osx]
+
 # Our dependency list.
 # Everything is pinned to allow better reproducibility.
 # The pinnings below are coming from anaconda 4.4.0
@@ -78,8 +85,6 @@ docopt:
   - 0.6.2
 ffmpeg:
   - 2.8.10
-gcc:
-  - 4.8.5
 giflib:
   - 5.1.4
 ipdb:
@@ -89,9 +94,7 @@ kaldi:
 keras:
   - 2.0.8
 libblitz:
-  - 0.10
-libgcc:
-  - 4.8.5
+  - 1.0.0.1832.f7e6fca
 libmatio:
   - 1.5.6
 libogg:
@@ -143,10 +146,8 @@ zc_recipe_egg:
 zlib:
   - 1.2.8
 
+
 pin_run_as_build:
-  libgcc:
-    min_pin: x.x.x
-    max_pin: ''
   boost:
     max_pin: x.x
   caffe:
@@ -189,8 +190,6 @@ pin_run_as_build:
     max_pin: x
   keras:
     max_pin: x
-  libblitz:
-    max_pin: x.x
   libmatio:
     max_pin: x.x.x
   libogg:
@@ -277,167 +276,3 @@ pin_run_as_build:
     max_pin: x
   zlib:
     max_pin: x.x.x
-  bob.buildout:
-    max_pin: x
-  bob.extension:
-    max_pin: x
-  bob.blitz:
-    max_pin: x
-  bob.core:
-    max_pin: x
-  bob.io.base:
-    max_pin: x
-  bob.io.image:
-    max_pin: x
-  bob.io.matlab:
-    max_pin: x
-  bob.io.video:
-    max_pin: x
-  bob.ip.color:
-    max_pin: x
-  bob.ip.draw:
-    max_pin: x
-  bob.ip.optflow.liu:
-    max_pin: x
-  bob.learn.activation:
-    max_pin: x
-  bob.learn.boosting:
-    max_pin: x
-  bob.learn.boosting:
-    max_pin: x
-  bob.learn.libsvm:
-    max_pin: x
-  bob.math:
-    max_pin: x
-  bob.measure:
-    max_pin: x
-  bob.sp:
-    max_pin: x
-  bob.ap:
-    max_pin: x
-  bob.db.base:
-    max_pin: x
-  bob.db.mnist:
-    max_pin: x
-  bob.db.wine:
-    max_pin: x
-  bob.io.audio:
-    max_pin: x
-  bob.ip.base:
-    max_pin: x
-  bob.ip.facedetect:
-    max_pin: x
-  bob.ip.flandmark:
-    max_pin: x
-  bob.ip.gabor:
-    max_pin: x
-  bob.ip.optflow.hornschunck:
-    max_pin: x
-  bob.ip.qualitymeasure:
-    max_pin: x
-  bob.ip.dlib:
-    max_pin: x
-  bob.learn.linear:
-    max_pin: x
-  bob.learn.mlp:
-    max_pin: x
-  bob.db.atnt:
-    max_pin: x
-  bob.db.iris:
-    max_pin: x
-  bob.learn.em:
-    max_pin: x
-  bob:
-    max_pin: x
-  bob.db.arface:
-    max_pin: x
-  bob.db.asvspoof:
-    max_pin: x
-  bob.db.asvspoof2017:
-    max_pin: x
-  bob.db.atvskeystroke:
-    max_pin: x
-  bob.db.avspoof:
-    max_pin: x
-  bob.db.banca:
-    max_pin: x
-  bob.db.biosecure:
-    max_pin: x
-  bob.db.biosecurid.face:
-    max_pin: x
-  bob.db.casme2:
-    max_pin: x
-  bob.db.caspeal:
-    max_pin: x
-  bob.db.cohface:
-    max_pin: x
-  bob.db.frgc:
-    max_pin: x
-  bob.db.gbu:
-    max_pin: x
-  bob.db.hci_tagging:
-    max_pin: x
-  bob.db.ijba:
-    max_pin: x
-  bob.db.kboc16:
-    max_pin: x
-  bob.db.lfw:
-    max_pin: x
-  bob.db.livdet2013:
-    max_pin: x
-  bob.db.mobio:
-    max_pin: x
-  bob.db.msu_mfsd_mod:
-    max_pin: x
-  bob.db.multipie:
-    max_pin: x
-  bob.db.nist_sre12:
-    max_pin: x
-  bob.db.pericrosseye:
-    max_pin: x
-  bob.db.putvein:
-    max_pin: x
-  bob.db.replay:
-    max_pin: x
-  bob.db.replaymobile:
-    max_pin: x
-  bob.db.scface:
-    max_pin: x
-  bob.db.utfvp:
-    max_pin: x
-  bob.db.voicepa:
-    max_pin: x
-  bob.db.xm2vts:
-    max_pin: x
-  bob.db.youtube:
-    max_pin: x
-  bob.ip.caffe_extractor:
-    max_pin: x
-  bob.ip.facelandmarks:
-    max_pin: x
-  bob.ip.skincolorfilter:
-    max_pin: x
-  bob.kaldi:
-    max_pin: x
-  gridtk:
-    max_pin: x
-  bob.bio.base:
-    max_pin: x
-  bob.bio.face:
-    max_pin: x
-  bob.bio.gmm:
-    max_pin: x
-  bob.bio.spear:
-    max_pin: x
-  bob.bio.video:
-    max_pin: x
-  bob.db.cuhk_cufs:
-    max_pin: x
-  bob.db.voxforge:
-    max_pin: x
-  bob.pad.base:
-    max_pin: x
-  bob.pad.voice:
-    max_pin: x
-  bob.bio.caffe_face:
-    max_pin: x