Rework libghdl build/install procedure (#840)

* feat(libghdl): add libghdl_pkg.py, add option to generate libghdl-py.tgz with dist/travis/build.sh

* libghdl*.so is now part of GHDL

* move python sources to python/libghdl and python/pnodes
* rename src/vhdl/python to src/vhdl/libghdl
* add generation of tarball for libghdl-py to the makefile
* deprecate --enable-python and --disable-python
* add configuration option --disable-libghdl

* feat(python/libghdl): add support for LIBGHDL_PREFIX (#844)

* fix(travis): disable libghdl on mac

* feat(python/libghdl): add support for GHDL_BIN_PATH and VUNIT_GHDL_PATH

1 files changed, 33 insertions, 0 deletions

diff --git a/python/libghdl/thin/vhdl/lists.py b/python/libghdl/thin/vhdl/lists.py
new file mode 100644
index 000000000..8fc180073
--- /dev/null
+++ b/python/libghdl/thin/vhdl/lists.py
@@ -0,0 +1,33 @@
+from libghdl import libghdl
+from ctypes import c_int32, c_bool, POINTER, Structure
+
+List_Type = c_int32
+
+class Iterator(Structure):
+    _fields_ = [("chunk", c_int32),
+                ("chunk_idx", c_int32),
+                ("remain", c_int32)]
+
+Iterate = libghdl.vhdl__lists__iterate
+Iterate.argstype = [List_Type]
+Iterate.restype = Iterator
+
+Is_Valid = libghdl.vhdl__lists__is_valid
+Is_Valid.argstype = [POINTER(Iterator)]
+Is_Valid.restype = c_bool
+
+Next = libghdl.vhdl__lists__next
+Next.argstype = [POINTER(Iterator)]
+Next.restype = None
+
+Get_Element = libghdl.vhdl__lists__get_element
+Get_Element.argstype = [POINTER(Iterator)]
+Get_Element.restype = c_int32
+
+Get_Nbr_Elements = libghdl.vhdl__lists__get_nbr_elements
+Get_Nbr_Elements.argtype = [List_Type]
+Get_Nbr_Elements.restype = c_int32
+
+Create_Iir_List = libghdl.vhdl__lists__create_list
+
+Destroy_Iir_List = libghdl.vhdl__lists__destroy_list