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, 31 insertions, 0 deletions

diff --git a/python/libghdl/thin/errorout_memory.py b/python/libghdl/thin/errorout_memory.py
new file mode 100644
index 000000000..8027795df
--- /dev/null
+++ b/python/libghdl/thin/errorout_memory.py
@@ -0,0 +1,31 @@
+from libghdl import libghdl
+from ctypes import c_int8, c_int32, c_char_p, Structure
+
+class Error_Message(Structure):
+    _fields_ = [("id", c_int8),
+                ("group", c_int8),
+                ("file", c_int32),
+                ("line", c_int32),
+                ("offset", c_int32),
+                ("length", c_int32)]
+
+
+# Values for group:
+Msg_Single = 0
+Msg_Main = 1
+Msg_Related = 2
+Msg_Last = 3
+
+Install_Handler = libghdl.errorout__memory__install_handler
+
+Get_Nbr_Messages = libghdl.errorout__memory__get_nbr_messages
+
+Get_Error_Record = libghdl.errorout__memory__get_error_record
+Get_Error_Record.argstypes = [c_int32]
+Get_Error_Record.restype = Error_Message
+
+Get_Error_Message = libghdl.errorout__memory__get_error_message_addr
+Get_Error_Message.argstype = [c_int32]
+Get_Error_Message.restype = c_char_p
+
+Clear_Errors = libghdl.errorout__memory__clear_errors