Description: Added the include dirs
--- a/setup.py
+++ b/setup.py
@@ -92,6 +92,7 @@
     chtslib_sources = []
     shared_htslib_sources = htslib_sources
     htslib_library_dirs = HTSLIB_LIBRARY_DIR
+    htslib_include_dirs = [HTSLIB_INCLUDE_DIR]
     htslib_libraries = ['hts']
 else:
     raise ValueError("unknown HTSLIB value '%s'" % HTSLIB_MODE)
