lang/python{27,33,34,35,36}: Install GDB debugging script

Users with a GDB that supports [1] Python extensions will automatically
load the extra debugging extensions when debugging programs that are
linked with libpythonX.Y.so.foo.

This enables extensions like 'py-bt' and 'py-frame' as described in
the Fedora Wiki Article: Easier Python Debugging [2], which can be
useful for debugging Python program state from crashes in C extensions,
for example.

[1] PYTHON option enabled in devel/gdb
[2] https://fedoraproject.org/wiki/Features/EasierPythonDebugging

PR:		203021
Submitted by:	cem
Reviewed by:	mat, koobs (python)
Approved by:	koobs (python)
Differential Revision: D10398

lang/python36/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	python
 PORTVERSION=	${PYTHON_PORTVERSION}
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	lang python ipv6
 MASTER_SITES=	PYTHON/ftp/python/${PYTHON_PORTVERSION}
 PKGNAMESUFFIX=	${PYTHON_SUFFIX}
@@ -131,5 +131,7 @@ post-install:
 .endif
 	for i in ${STAGEDIR}${PREFIX}/lib/python${PYTHON_VER}/lib-dynload/*.so; do \
 		${STRIP_CMD} $$i; done								# Strip shared extensions
+	${INSTALL_DATA} ${WRKSRC}/Tools/gdb/libpython.py \
+		${STAGEDIR}${PREFIX}/lib/libpython${PYTHON_VER}${ABIFLAGS}.so.1.0-gdb.py
 
 .include <bsd.port.mk>

lang/python36/pkg-plist

@@ -106,6 +106,7 @@ include/python%%XYDOT%%%%ABI%%/warnings.h
 include/python%%XYDOT%%%%ABI%%/weakrefobject.h
 lib/libpython%%XYDOT%%%%ABI%%.so
 lib/libpython%%XYDOT%%%%ABI%%.so.1.0
+lib/libpython%%XYDOT%%%%ABI%%.so.1.0-gdb.py
 lib/python%%XYDOT%%/LICENSE.txt
 lib/python%%XYDOT%%/__future__.py
 lib/python%%XYDOT%%/__phello__.foo.py