diff --git a/src/module_list.py b/src/module_list.py
index d7b5f459cf0..a0111134391 100644
--- a/src/module_list.py
+++ b/src/module_list.py
@@ -403,13 +403,10 @@ def uname_specific(name, value, alternative):
 
     OptionalExtension("sage.graphs.mcqd",
               ["sage/graphs/mcqd.pyx"],
-              language = "c++",
               package = 'mcqd'),
 
     OptionalExtension("sage.graphs.bliss",
               ["sage/graphs/bliss.pyx"],
-              language = "c++",
-              libraries = ['bliss'],
               package = 'bliss'),
 
     Extension('sage.graphs.planarity',
@@ -527,8 +524,6 @@ def uname_specific(name, value, alternative):
 
     OptionalExtension("sage.libs.fes",
              ["sage/libs/fes.pyx"],
-             language = "c",
-             libraries = ['fes'],
              package = 'fes'),
 
     Extension('sage.libs.flint.flint',
@@ -560,9 +555,7 @@ def uname_specific(name, value, alternative):
 
     OptionalExtension('sage.libs.sirocco',
                       sources = ["sage/libs/sirocco.pyx"],
-                      libraries = ["sirocco"],
-                      package="sirocco",
-                      language = 'c++'),
+                      package="sirocco"),
 
     Extension('*', ['sage/libs/linbox/*.pyx']),
 
@@ -583,7 +576,6 @@ def uname_specific(name, value, alternative):
 
     OptionalExtension("sage.libs.meataxe",
               sources = ['sage/libs/meataxe.pyx'],
-              libraries = ['mtx'],
               package = 'meataxe'),
 
     Extension('*', ['sage/libs/pari/*.pyx']),
@@ -894,7 +886,6 @@ def uname_specific(name, value, alternative):
 
     OptionalExtension("sage.matrix.matrix_gfpn_dense",
               sources = ['sage/matrix/matrix_gfpn_dense.pyx'],
-              libraries = ['mtx'],
               package = 'meataxe'),
 
     Extension('sage.matrix.misc',
diff --git a/src/sage/graphs/bliss.pyx b/src/sage/graphs/bliss.pyx
index 7bfa4018643..d21c034a6e3 100644
--- a/src/sage/graphs/bliss.pyx
+++ b/src/sage/graphs/bliss.pyx
@@ -1,3 +1,7 @@
+# distutils: language = c++
+# distutils: libraries = bliss
+# sage_setup: package = sage-bliss
+
 r"""
 Interface with bliss: graph (iso/auto)morphism
 
diff --git a/src/sage/graphs/mcqd.pyx b/src/sage/graphs/mcqd.pyx
index 0ed4ac68959..e768d36fc8e 100644
--- a/src/sage/graphs/mcqd.pyx
+++ b/src/sage/graphs/mcqd.pyx
@@ -1,3 +1,5 @@
+# distutils: language = c++
+# sage_setup: package = sage-mcqd
 
 from sage.ext.memory_allocator cimport MemoryAllocator
 
diff --git a/src/sage/interfaces/primecount.pyx b/src/sage/interfaces/primecount.pyx
index 6f0fea413f8..9f2ed88e0e8 100644
--- a/src/sage/interfaces/primecount.pyx
+++ b/src/sage/interfaces/primecount.pyx
@@ -1,3 +1,5 @@
+# sage_setup: package = sage-primecount
+
 r"""
 Interface to the primecount library
 """
diff --git a/src/sage/libs/fes.pyx b/src/sage/libs/fes.pyx
index 3cc2e35c8c0..06a8db7f62e 100644
--- a/src/sage/libs/fes.pyx
+++ b/src/sage/libs/fes.pyx
@@ -1,3 +1,6 @@
+# distutils: language = c
+# distutils: libraries = fes
+# sage_setup: distribution = sage-fes
 """
 Binding for the FES library
 
diff --git a/src/sage/libs/meataxe.pyx b/src/sage/libs/meataxe.pyx
index 7549e55e0d9..f6fc4be1585 100644
--- a/src/sage/libs/meataxe.pyx
+++ b/src/sage/libs/meataxe.pyx
@@ -1,3 +1,5 @@
+# distutils: libraries = mtx
+# sage_setup: distribution = sage-meataxe
 #*****************************************************************************
 #       Copyright (C) 2017 Simon King <simon.king@uni-jena.de>
 #
diff --git a/src/sage/libs/sirocco.pyx b/src/sage/libs/sirocco.pyx
index f3b4fabbc90..fecf69bfb1b 100644
--- a/src/sage/libs/sirocco.pyx
+++ b/src/sage/libs/sirocco.pyx
@@ -1,4 +1,7 @@
 #cython: boundscheck=False, wraparound=False
+# distutils: libraries = sirocco
+# distutils: language = c++
+# sage_setup: distribution = sage-sirocco
 r"""
 Cython wrapper for sirocco library
 
diff --git a/src/sage/matrix/matrix_gfpn_dense.pyx b/src/sage/matrix/matrix_gfpn_dense.pyx
index ed9c0aaf09f..42af34dc10b 100644
--- a/src/sage/matrix/matrix_gfpn_dense.pyx
+++ b/src/sage/matrix/matrix_gfpn_dense.pyx
@@ -1,3 +1,5 @@
+# distutils: libraries = mtx
+# sage_setup: distribution = sage-meataxe
 r"""
 Dense Matrices over `\mathbb F_q`, with `q<255`.