[gentoo-commits] proj/riscv:master commit in: dev-lang/python/, dev-lang/python/files/

[Andreas K. Hüttel]

commit:     f09799fa0c57ccb122754914ed23136e02b0da2f
Author:     Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org>
AuthorDate: Sat Apr 20 23:34:50 2019 +0000
Commit:     Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org>
CommitDate: Sat Apr 20 23:34:50 2019 +0000
URL:        https://gitweb.gentoo.org/proj/riscv.git/commit/?id=f09799fa

dev-lang/python: Add our monkeypatched python

Package-Manager: Portage-2.3.63, Repoman-2.3.12
Signed-off-by: Andreas K. Hüttel <dilfridge <AT> gentoo.org>

 dev-lang/python/Manifest                           |   2 +
 dev-lang/python/files/3.4-getentropy-linux.patch   |  40 +++
 dev-lang/python/files/3.6-disable-nis.patch        |  21 ++
 dev-lang/python/files/3.6.5-disable-nis.patch      |  11 +
 dev-lang/python/files/pydoc.conf                   |   6 +
 dev-lang/python/files/pydoc.init                   |  24 ++
 .../python-2.7.10-cross-compile-warn-test.patch    |  24 ++
 .../python/files/python-2.7.10-system-libffi.patch |  36 +++
 .../files/python-2.7.5-nonfatal-compileall.patch   |  18 ++
 .../files/python-2.7.9-ncurses-pkg-config.patch    |  13 +
 .../files/python-3.4.3-ncurses-pkg-config.patch    |  13 +
 dev-lang/python/files/python-3.4.5-cross.patch     |  11 +
 .../files/python-3.5-distutils-OO-build.patch      |  80 +++++
 .../python/files/python-3.5.5-hash-unaligned.patch |  43 +++
 .../python-3.5.5-libressl-compatibility.patch      |  69 ++++
 .../python/files/python-3.6.5-hash-unaligned.patch |  42 +++
 .../python-3.6.5-libressl-compatibility.patch      | 114 +++++++
 .../python/files/python-3.6.8-reducepath.patch     |  22 ++
 dev-lang/python/metadata.xml                       |  13 +
 dev-lang/python/python-3.6.8-r1.ebuild             | 351 +++++++++++++++++++++
 20 files changed, 953 insertions(+)

diff --git a/dev-lang/python/Manifest b/dev-lang/python/Manifest
new file mode 100644
index 0000000..d2f2f32
--- /dev/null
+++ b/dev-lang/python/Manifest
@@ -0,0 +1,2 @@
+DIST Python-3.6.8.tar.xz 17212420 BLAKE2B e104b49a35492b622080ab81a446c0cdd1223e8ddf95c4e1b262762a027664b59f3e4deeda4ba7177115d780e48b6764a053acef640a645327df428d2e4820cd SHA512 b17867e451ebe662f50df83ed112d3656c089e7d750651ea640052b01b713b58e66aac9e082f71fd16f5b5510bc9b797f5ccd30f5399581e9aa406197f02938a
+DIST python-gentoo-patches-3.6.8.tar.xz 11224 BLAKE2B 5fe38282bcf28df18e0bd37756c880ae191ea738dc92f1cf83f682cfdc52525b9c44287dc99191a73d75c90672ab501b56adf49515b35ff1fdee88c8dc07b175 SHA512 89e700663db25d6d78eee1d4bfdab686c5341a794062f3a63df3485ac0b58deb4b4885d24701f3ae138d06ca783be92e310e1100c6d633910c33732f3cb0d7df

diff --git a/dev-lang/python/files/3.4-getentropy-linux.patch b/dev-lang/python/files/3.4-getentropy-linux.patch
new file mode 100644
index 0000000..9f12389
--- /dev/null
+++ b/dev-lang/python/files/3.4-getentropy-linux.patch
@@ -0,0 +1,40 @@
+From 5635d44079e1bbd9c495951ede8d078e7b8d67d5 Mon Sep 17 00:00:00 2001
+From: Victor Stinner <victor.stinner@×××××.com>
+Date: Mon, 9 Jan 2017 11:10:41 +0100
+Subject: [PATCH] Don't use getentropy() on Linux
+
+Issue #29188: Support glibc 2.24 on Linux: don't use getentropy() function but
+read from /dev/urandom to get random bytes, for example in os.urandom().  On
+Linux, getentropy() is implemented which getrandom() is blocking mode, whereas
+os.urandom() should not block.
+---
+ Python/random.c | 13 ++++++++++---
+ 1 file changed, 10 insertions(+), 3 deletions(-)
+
+diff --git a/Python/random.c b/Python/random.c
+index af3d0bd0d5..dc6400d3b8 100644
+--- a/Python/random.c
++++ b/Python/random.c
+@@ -67,9 +67,16 @@ win32_urandom(unsigned char *buffer, Py_ssize_t size, int raise)
+     return 0;
+ }
+ 
+-/* Issue #25003: Don' use getentropy() on Solaris (available since
+- * Solaris 11.3), it is blocking whereas os.urandom() should not block. */
+-#elif defined(HAVE_GETENTROPY) && !defined(sun)
++/* Issue #25003: Don't use getentropy() on Solaris (available since
++   Solaris 11.3), it is blocking whereas os.urandom() should not block.
++
++   Issue #29188: Don't use getentropy() on Linux since the glibc 2.24
++   implements it with the getrandom() syscall which can fail with ENOSYS,
++   and this error is not supported in py_getentropy() and getrandom() is called
++   with flags=0 which blocks until system urandom is initialized, which is not
++   the desired behaviour to seed the Python hash secret nor for os.urandom():
++   see the PEP 524 which was only implemented in Python 3.6. */
++#elif defined(HAVE_GETENTROPY) && !defined(sun) && !defined(linux)
+ #define PY_GETENTROPY 1
+ 
+ /* Fill buffer with size pseudo-random bytes generated by getentropy().
+-- 
+2.15.0.rc2
+

diff --git a/dev-lang/python/files/3.6-disable-nis.patch b/dev-lang/python/files/3.6-disable-nis.patch
new file mode 100644
index 0000000..4e81847
--- /dev/null
+++ b/dev-lang/python/files/3.6-disable-nis.patch
@@ -0,0 +1,21 @@
+--- a/setup.py
++++ b/setup.py
+@@ -1332,17 +1332,7 @@ class PyBuildExt(build_ext):
+             # Jeremy Hylton's rlimit interface
+             exts.append( Extension('resource', ['resource.c']) )
+ 
+-            # Sun yellow pages. Some systems have the functions in libc.
+-            if (host_platform not in ['cygwin', 'qnx6'] and
+-                find_file('rpcsvc/yp_prot.h', inc_dirs, []) is not None):
+-                if (self.compiler.find_library_file(lib_dirs, 'nsl')):
+-                    libs = ['nsl']
+-                else:
+-                    libs = []
+-                exts.append( Extension('nis', ['nismodule.c'],
+-                                       libraries = libs) )
+-            else:
+-                missing.append('nis')
++            missing.append('nis')
+         else:
+             missing.extend(['nis', 'resource', 'termios'])
+ 

diff --git a/dev-lang/python/files/3.6.5-disable-nis.patch b/dev-lang/python/files/3.6.5-disable-nis.patch
new file mode 100644
index 0000000..3937c6f
--- /dev/null
+++ b/dev-lang/python/files/3.6.5-disable-nis.patch
@@ -0,0 +1,11 @@
+--- a/setup.py
++++ b/setup.py
+@@ -1364,7 +1364,7 @@ class PyBuildExt(build_ext):
+         else:
+             missing.extend(['resource', 'termios'])
+ 
+-        nis = self._detect_nis(inc_dirs, lib_dirs)
++        nis = None
+         if nis is not None:
+             exts.append(nis)
+         else:

diff --git a/dev-lang/python/files/pydoc.conf b/dev-lang/python/files/pydoc.conf
new file mode 100644
index 0000000..3c6920c
--- /dev/null
+++ b/dev-lang/python/files/pydoc.conf
@@ -0,0 +1,6 @@
+# /etc/init.d/pydoc.conf
+
+# This file contains the configuration for pydoc's internal webserver.
+
+# Default port for Python's pydoc server.
+@PYDOC_PORT_VARIABLE@="7464"

diff --git a/dev-lang/python/files/pydoc.init b/dev-lang/python/files/pydoc.init
new file mode 100644
index 0000000..148ce0b
--- /dev/null
+++ b/dev-lang/python/files/pydoc.init
@@ -0,0 +1,24 @@
+#!/sbin/openrc-run
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public Licence v2
+
+start() {
+	local pydoc_port="${@PYDOC_PORT_VARIABLE@-${PYDOC_PORT}}"
+
+	if [ -z "${pydoc_port}" ]; then
+		eerror "Port not set"
+		return 1
+	fi
+
+	ebegin "Starting pydoc server on port ${pydoc_port}" 
+	start-stop-daemon --start --background --make-pidfile \
+			  --pidfile /var/run/@PYDOC@.pid \
+			  --exec /usr/bin/@PYDOC@ -- -p "${pydoc_port}"
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping pydoc server"
+	start-stop-daemon --stop --quiet --pidfile /var/run/@PYDOC@.pid
+	eend $?
+}

diff --git a/dev-lang/python/files/python-2.7.10-cross-compile-warn-test.patch b/dev-lang/python/files/python-2.7.10-cross-compile-warn-test.patch
new file mode 100644
index 0000000..38433de
--- /dev/null
+++ b/dev-lang/python/files/python-2.7.10-cross-compile-warn-test.patch
@@ -0,0 +1,24 @@
+https://bugs.python.org/issue25397
+
+improve the cross-compile tests to be more focused
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -1339,7 +1339,7 @@ if test "$GCC" = "yes"
+ then
+   AC_MSG_CHECKING(whether gcc supports ParseTuple __format__)
+   save_CFLAGS=$CFLAGS
+-  CFLAGS="$CFLAGS -Werror -Wformat"
++  CFLAGS="$CFLAGS -Werror=format"
+   AC_COMPILE_IFELSE([
+     AC_LANG_PROGRAM([[void f(char*,...)__attribute((format(PyArg_ParseTuple, 1, 2)));]], [[]])
+   ],[
+@@ -4458,7 +4458,7 @@ then
+   [ac_cv_have_long_long_format="cross -- assuming no"
+    if test x$GCC = xyes; then
+     save_CFLAGS=$CFLAGS
+-    CFLAGS="$CFLAGS -Werror -Wformat"
++    CFLAGS="$CFLAGS -Werror=format"
+     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+         #include <stdio.h>
+         #include <stddef.h>

diff --git a/dev-lang/python/files/python-2.7.10-system-libffi.patch b/dev-lang/python/files/python-2.7.10-system-libffi.patch
new file mode 100644
index 0000000..0b49b79
--- /dev/null
+++ b/dev-lang/python/files/python-2.7.10-system-libffi.patch
@@ -0,0 +1,36 @@
+make sure we respect the system libffi setting in our build config.
+the compiler probing is fragile and can break in some situations.
+
+--- a/setup.py
++++ b/setup.py
+@@ -2069,7 +2069,7 @@ class PyBuildExt(build_ext):
+         return True
+ 
+     def detect_ctypes(self, inc_dirs, lib_dirs):
+-        self.use_system_libffi = False
++        self.use_system_libffi = ('--with-system-ffi' in sysconfig.get_config_var("CONFIG_ARGS"))
+         include_dirs = []
+         extra_compile_args = []
+         extra_link_args = []
+@@ -2113,7 +2113,7 @@ class PyBuildExt(build_ext):
+                              sources=['_ctypes/_ctypes_test.c'])
+         self.extensions.extend([ext, ext_test])
+ 
+-        if not '--with-system-ffi' in sysconfig.get_config_var("CONFIG_ARGS"):
++        if not self.use_system_libffi:
+             return
+ 
+         if host_platform == 'darwin':
+@@ -2141,10 +2141,10 @@ class PyBuildExt(build_ext):
+                     ffi_lib = lib_name
+                     break
+ 
+-        if ffi_inc and ffi_lib:
++        if ffi_inc:
+             ext.include_dirs.extend(ffi_inc)
++        if ffi_lib:
+             ext.libraries.append(ffi_lib)
+-            self.use_system_libffi = True
+ 
+ 
+ class PyBuildInstall(install):

diff --git a/dev-lang/python/files/python-2.7.5-nonfatal-compileall.patch b/dev-lang/python/files/python-2.7.5-nonfatal-compileall.patch
new file mode 100644
index 0000000..a762dfb
--- /dev/null
+++ b/dev-lang/python/files/python-2.7.5-nonfatal-compileall.patch
@@ -0,0 +1,18 @@
+diff --git a/Makefile.pre.in b/Makefile.pre.in
+--- a/Makefile.pre.in
++++ b/Makefile.pre.in
+@@ -1000,12 +1000,12 @@
+ 		$(INSTALL_DATA) $(srcdir)/Modules/xxmodule.c \
+ 			$(DESTDIR)$(LIBDEST)/distutils/tests ; \
+ 	fi
+-	PYTHONPATH=$(DESTDIR)$(LIBDEST)  $(RUNSHARED) \
++	-PYTHONPATH=$(DESTDIR)$(LIBDEST)  $(RUNSHARED) \
+ 		$(PYTHON_FOR_BUILD) -Wi -tt $(DESTDIR)$(LIBDEST)/compileall.py \
+ 		-d $(LIBDEST) -f \
+ 		-x 'bad_coding|badsyntax|site-packages|lib2to3/tests/data' \
+ 		$(DESTDIR)$(LIBDEST)
+-	PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
++	-PYTHONPATH=$(DESTDIR)$(LIBDEST) $(RUNSHARED) \
+ 		$(PYTHON_FOR_BUILD) -Wi -tt -O $(DESTDIR)$(LIBDEST)/compileall.py \
+ 		-d $(LIBDEST) -f \
+ 		-x 'bad_coding|badsyntax|site-packages|lib2to3/tests/data' \

diff --git a/dev-lang/python/files/python-2.7.9-ncurses-pkg-config.patch b/dev-lang/python/files/python-2.7.9-ncurses-pkg-config.patch
new file mode 100644
index 0000000..38ce6f7
--- /dev/null
+++ b/dev-lang/python/files/python-2.7.9-ncurses-pkg-config.patch
@@ -0,0 +1,13 @@
+do not hardcode /usr/include paths
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -4316,7 +4316,7 @@ fi
+ 
+ # first curses configure check
+ ac_save_cppflags="$CPPFLAGS"
+-CPPFLAGS="$CPPFLAGS -I/usr/include/ncursesw"
++CPPFLAGS="$CPPFLAGS `$PKG_CONFIG --cflags ncursesw`"
+ 
+ AC_CHECK_HEADERS(curses.h ncurses.h)
+ 

diff --git a/dev-lang/python/files/python-3.4.3-ncurses-pkg-config.patch b/dev-lang/python/files/python-3.4.3-ncurses-pkg-config.patch
new file mode 100644
index 0000000..8bfad11
--- /dev/null
+++ b/dev-lang/python/files/python-3.4.3-ncurses-pkg-config.patch
@@ -0,0 +1,13 @@
+do not hardcode /usr/include paths
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -4402,7 +4402,7 @@ fi
+ 
+ # first curses header check
+ ac_save_cppflags="$CPPFLAGS"
+-CPPFLAGS="$CPPFLAGS -I/usr/include/ncursesw"
++CPPFLAGS="$CPPFLAGS `$PKG_CONFIG --cflags ncursesw`"
+ 
+ AC_CHECK_HEADERS(curses.h ncurses.h)
+ 

diff --git a/dev-lang/python/files/python-3.4.5-cross.patch b/dev-lang/python/files/python-3.4.5-cross.patch
new file mode 100644
index 0000000..7a016ff
--- /dev/null
+++ b/dev-lang/python/files/python-3.4.5-cross.patch
@@ -0,0 +1,11 @@
+--- a/Lib/distutils/command/build_ext.py
++++ b/Lib/distutils/command/build_ext.py
+@@ -729,7 +729,7 @@
+             if sysconfig.get_config_var('Py_ENABLE_SHARED'):
+                 pythonlib = 'python{}.{}{}'.format(
+                     sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff,
+-                    sys.abiflags)
++                    sysconfig.get_config_var('ABIFLAGS'))
+                 return ext.libraries + [pythonlib]
+             else:
+                 return ext.libraries

diff --git a/dev-lang/python/files/python-3.5-distutils-OO-build.patch b/dev-lang/python/files/python-3.5-distutils-OO-build.patch
new file mode 100644
index 0000000..8af8c30
--- /dev/null
+++ b/dev-lang/python/files/python-3.5-distutils-OO-build.patch
@@ -0,0 +1,80 @@
+From 90507018442f9adabb586fd3d0a0206b9c2f2f50 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@g.o>
+Date: Sun, 5 Jun 2016 08:18:01 +0200
+Subject: [PATCH] distutils: make -OO enable both opt-1 and opt-2 optimization
+
+Bug: http://bugs.python.org/issue27226
+Bug: https://bugs.gentoo.org/585060
+---
+ Lib/distutils/command/build_py.py    |  8 ++++----
+ Lib/distutils/command/install_lib.py | 12 ++++++------
+ 2 files changed, 10 insertions(+), 10 deletions(-)
+
+diff --git a/Lib/distutils/command/build_py.py b/Lib/distutils/command/build_py.py
+index cf0ca57..838d4e4 100644
+--- a/Lib/distutils/command/build_py.py
++++ b/Lib/distutils/command/build_py.py
+@@ -315,9 +315,9 @@ class build_py (Command):
+                 if self.compile:
+                     outputs.append(importlib.util.cache_from_source(
+                         filename, optimization=''))
+-                if self.optimize > 0:
++                for opt in range(1, self.optimize + 1):
+                     outputs.append(importlib.util.cache_from_source(
+-                        filename, optimization=self.optimize))
++                        filename, optimization=opt))
+ 
+         outputs += [
+             os.path.join(build_dir, filename)
+@@ -387,8 +387,8 @@ class build_py (Command):
+         if self.compile:
+             byte_compile(files, optimize=0,
+                          force=self.force, prefix=prefix, dry_run=self.dry_run)
+-        if self.optimize > 0:
+-            byte_compile(files, optimize=self.optimize,
++        for opt in range(1, self.optimize + 1):
++            byte_compile(files, optimize=opt,
+                          force=self.force, prefix=prefix, dry_run=self.dry_run)
+ 
+ class build_py_2to3(build_py, Mixin2to3):
+diff --git a/Lib/distutils/command/install_lib.py b/Lib/distutils/command/install_lib.py
+index 6154cf0..049b662 100644
+--- a/Lib/distutils/command/install_lib.py
++++ b/Lib/distutils/command/install_lib.py
+@@ -24,8 +24,8 @@ class install_lib(Command):
+     #   2) compile .pyc only (--compile --no-optimize; default)
+     #   3) compile .pyc and "opt-1" .pyc (--compile --optimize)
+     #   4) compile "opt-1" .pyc only (--no-compile --optimize)
+-    #   5) compile .pyc and "opt-2" .pyc (--compile --optimize-more)
+-    #   6) compile "opt-2" .pyc only (--no-compile --optimize-more)
++    #   5) compile .pyc, "opt-1" and "opt-2" .pyc (--compile --optimize-more)
++    #   6) compile "opt-1" and "opt-2" .pyc (--no-compile --optimize-more)
+     #
+     # The UI for this is two options, 'compile' and 'optimize'.
+     # 'compile' is strictly boolean, and only decides whether to
+@@ -132,8 +132,8 @@ class install_lib(Command):
+             byte_compile(files, optimize=0,
+                          force=self.force, prefix=install_root,
+                          dry_run=self.dry_run)
+-        if self.optimize > 0:
+-            byte_compile(files, optimize=self.optimize,
++        for opt in range(1, self.optimize + 1):
++            byte_compile(files, optimize=opt,
+                          force=self.force, prefix=install_root,
+                          verbose=self.verbose, dry_run=self.dry_run)
+ 
+@@ -167,9 +167,9 @@ class install_lib(Command):
+             if self.compile:
+                 bytecode_files.append(importlib.util.cache_from_source(
+                     py_file, optimization=''))
+-            if self.optimize > 0:
++            for opt in range(1, self.optimize + 1):
+                 bytecode_files.append(importlib.util.cache_from_source(
+-                    py_file, optimization=self.optimize))
++                    py_file, optimization=opt))
+ 
+         return bytecode_files
+ 
+-- 
+2.8.3
+

diff --git a/dev-lang/python/files/python-3.5.5-hash-unaligned.patch b/dev-lang/python/files/python-3.5.5-hash-unaligned.patch
new file mode 100644
index 0000000..c418f40
--- /dev/null
+++ b/dev-lang/python/files/python-3.5.5-hash-unaligned.patch
@@ -0,0 +1,43 @@
+The hash implementation casts the input pointer to uint64_t* and directly reads
+from this, which may cause unaligned accesses. Use memcpy() instead so this code
+will not crash with SIGBUS on sparc.
+
+--- a/Python/pyhash.c	2017-11-29 10:21:20.283094068 +0100
++++ b/Python/pyhash.c	2017-11-29 10:24:26.733087813 +0100
+@@ -372,7 +372,7 @@ siphash24(const void *src, Py_ssize_t sr
+     PY_UINT64_T k0 = _le64toh(_Py_HashSecret.siphash.k0);
+     PY_UINT64_T k1 = _le64toh(_Py_HashSecret.siphash.k1);
+     PY_UINT64_T b = (PY_UINT64_T)src_sz << 56;
+-    const PY_UINT64_T *in = (PY_UINT64_T*)src;
++    const PY_UINT8_T *in = (PY_UINT8_T*)src;
+ 
+     PY_UINT64_T v0 = k0 ^ 0x736f6d6570736575ULL;
+     PY_UINT64_T v1 = k1 ^ 0x646f72616e646f6dULL;
+@@ -381,12 +381,14 @@ siphash24(const void *src, Py_ssize_t sr
+ 
+     PY_UINT64_T t;
+     PY_UINT8_T *pt;
+-    PY_UINT8_T *m;
++    const PY_UINT8_T *m;
+ 
+     while (src_sz >= 8) {
+-        PY_UINT64_T mi = _le64toh(*in);
+-        in += 1;
+-        src_sz -= 8;
++        PY_UINT64_T mi;
++        memcpy(&mi, in, sizeof(mi));
++        mi = _le64toh(mi);
++        in += sizeof(mi);
++        src_sz -= sizeof(mi);
+         v3 ^= mi;
+         DOUBLE_ROUND(v0,v1,v2,v3);
+         v0 ^= mi;
+@@ -394,7 +396,7 @@ siphash24(const void *src, Py_ssize_t sr
+ 
+     t = 0;
+     pt = (PY_UINT8_T *)&t;
+-    m = (PY_UINT8_T *)in;
++    m = in;
+     switch (src_sz) {
+         case 7: pt[6] = m[6];
+         case 6: pt[5] = m[5];

diff --git a/dev-lang/python/files/python-3.5.5-libressl-compatibility.patch b/dev-lang/python/files/python-3.5.5-libressl-compatibility.patch
new file mode 100644
index 0000000..67d57d0
--- /dev/null
+++ b/dev-lang/python/files/python-3.5.5-libressl-compatibility.patch
@@ -0,0 +1,69 @@
+# From 8d89a385b71a2e4cce0fba0cfc8d91b63485edc5 Mon Sep 17 00:00:00 2001
+# From: Christian Heimes <christian@××××××.org>
+# Date: Sat, 24 Mar 2018 18:38:14 +0100
+# Subject: [PATCH] [3.6] bpo-33127: Compatibility patch for LibreSSL 2.7.0
+# (GH-6210) (GH-6214)
+#
+# LibreSSL 2.7 introduced OpenSSL 1.1.0 API. The ssl module now detects
+# LibreSSL 2.7 and only provides API shims for OpenSSL < 1.1.0 and
+# LibreSSL < 2.7.
+
+# Documentation updates and fixes for failing tests will be provided in
+# another patch set.
+
+# Signed-off-by: Christian Heimes <christian@××××××.org>.
+# (cherry picked from commit 4ca0739c9d97ac7cd45499e0d31be68dc659d0e1)
+
+# Co-authored-by: Christian Heimes <christian@××××××.org>
+# Patch modified by Aaron Bauman <bman@g.o> for 3.5.5
+
+--- a/Modules/_ssl.c	2018-04-13 18:33:17.397649561 -0400
++++ b/Modules/_ssl.c	2018-04-13 18:40:22.319852014 -0400
+@@ -101,6 +101,12 @@
+ 
+ #if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(LIBRESSL_VERSION_NUMBER)
+ #  define OPENSSL_VERSION_1_1 1
++#  define PY_OPENSSL_1_1_API 1
++#endif
++
++/* LibreSSL 2.7.0 provides necessary OpenSSL 1.1.0 APIs */
++#if defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER >= 0x2070000fL
++#  define PY_OPENSSL_1_1_API 1
+ #endif
+ 
+ /* Openssl comes with TLSv1.1 and TLSv1.2 between 1.0.0h and 1.0.1
+@@ -129,16 +135,18 @@
+ #define INVALID_SOCKET (-1)
+ #endif
+ 
+-#ifdef OPENSSL_VERSION_1_1
+-/* OpenSSL 1.1.0+ */
+-#ifndef OPENSSL_NO_SSL2
+-#define OPENSSL_NO_SSL2
+-#endif
+-#else /* OpenSSL < 1.1.0 */
+-#if defined(WITH_THREAD)
++/* OpenSSL 1.0.2 and LibreSSL needs extra code for locking */
++#if !defined(OPENSSL_VERSION_1_1) && defined(WITH_THREAD)
+ #define HAVE_OPENSSL_CRYPTO_LOCK
+ #endif
+ 
++#if defined(OPENSSL_VERSION_1_1) && !defined(OPENSSL_NO_SSL2)
++#define OPENSSL_NO_SSL2
++#endif
++
++#ifndef PY_OPENSSL_1_1_API
++/* OpenSSL 1.1 API shims for OpenSSL < 1.1.0 and LibreSSL < 2.7.0 */
++
+ #define TLS_method SSLv23_method
+ 
+ static int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne)
+@@ -187,7 +195,7 @@
+ {
+     return store->param;
+ }
+-#endif /* OpenSSL < 1.1.0 or LibreSSL */
++#endif /* OpenSSL < 1.1.0 or LibreSSL < 2.7.0 */
+ 
+ 
+ enum py_ssl_error {

diff --git a/dev-lang/python/files/python-3.6.5-hash-unaligned.patch b/dev-lang/python/files/python-3.6.5-hash-unaligned.patch
new file mode 100644
index 0000000..d096887
--- /dev/null
+++ b/dev-lang/python/files/python-3.6.5-hash-unaligned.patch
@@ -0,0 +1,42 @@
+The hash implementation casts the input pointer to uint64_t* and directly reads
+from this, which may cause unaligned accesses. Use memcpy() instead so this code
+will not crash with SIGBUS on sparc.
+
+--- a/Python/pyhash.c	2017-11-29 10:21:20.283094068 +0100
++++ b/Python/pyhash.c	2017-11-29 10:24:26.733087813 +0100
+@@ -369,7 +369,7 @@
+     uint64_t k0 = _le64toh(_Py_HashSecret.siphash.k0);
+     uint64_t k1 = _le64toh(_Py_HashSecret.siphash.k1);
+     uint64_t b = (uint64_t)src_sz << 56;
+-    const uint64_t *in = (uint64_t*)src;
++    const uint8_t *in = (uint8_t*)src;
+ 
+     uint64_t v0 = k0 ^ 0x736f6d6570736575ULL;
+     uint64_t v1 = k1 ^ 0x646f72616e646f6dULL;
+@@ -378,11 +378,13 @@
+ 
+     uint64_t t;
+     uint8_t *pt;
+-    uint8_t *m;
++    const uint8_t *m;
+ 
+     while (src_sz >= 8) {
+-        uint64_t mi = _le64toh(*in);
+-        in += 1;
+-        src_sz -= 8;
++        uint64_t mi;
++        memcpy(&mi, in, sizeof(mi));
++        mi = _le64toh(mi);
++        in += sizeof(mi);
++        src_sz -= sizeof(mi);
+         v3 ^= mi;
+         DOUBLE_ROUND(v0,v1,v2,v3);
+@@ -391,7 +393,7 @@
+ 
+     t = 0;
+     pt = (uint8_t *)&t;
+-    m = (uint8_t *)in;
++    m = in;
+     switch (src_sz) {
+         case 7: pt[6] = m[6]; /* fall through */
+         case 6: pt[5] = m[5]; /* fall through */

diff --git a/dev-lang/python/files/python-3.6.5-libressl-compatibility.patch b/dev-lang/python/files/python-3.6.5-libressl-compatibility.patch
new file mode 100644
index 0000000..2f9e6a2
--- /dev/null
+++ b/dev-lang/python/files/python-3.6.5-libressl-compatibility.patch
@@ -0,0 +1,114 @@
+From 8d89a385b71a2e4cce0fba0cfc8d91b63485edc5 Mon Sep 17 00:00:00 2001
+From: Christian Heimes <christian@××××××.org>
+Date: Sat, 24 Mar 2018 18:38:14 +0100
+Subject: [PATCH] [3.6] bpo-33127: Compatibility patch for LibreSSL 2.7.0
+ (GH-6210) (GH-6214)
+
+LibreSSL 2.7 introduced OpenSSL 1.1.0 API. The ssl module now detects
+LibreSSL 2.7 and only provides API shims for OpenSSL < 1.1.0 and
+LibreSSL < 2.7.
+
+Documentation updates and fixes for failing tests will be provided in
+another patch set.
+
+Signed-off-by: Christian Heimes <christian@××××××.org>.
+(cherry picked from commit 4ca0739c9d97ac7cd45499e0d31be68dc659d0e1)
+
+Co-authored-by: Christian Heimes <christian@××××××.org>
+---
+ Lib/test/test_ssl.py                          |  1 +
+ .../2018-03-24-15-08-24.bpo-33127.olJmHv.rst  |  1 +
+ Modules/_ssl.c                                | 24 ++++++++++++-------
+ Tools/ssl/multissltests.py                    |  3 ++-
+ 4 files changed, 20 insertions(+), 9 deletions(-)
+ create mode 100644 Misc/NEWS.d/next/Library/2018-03-24-15-08-24.bpo-33127.olJmHv.rst
+
+diff --git a/Lib/test/test_ssl.py b/Lib/test/test_ssl.py
+index 8dd3b41450..9785a59a7e 100644
+--- a/Lib/test/test_ssl.py
++++ b/Lib/test/test_ssl.py
+@@ -1687,6 +1687,7 @@ class SimpleBackgroundTests(unittest.TestCase):
+         self.assertEqual(len(ctx.get_ca_certs()), 1)
+ 
+     @needs_sni
++    @unittest.skipUnless(hasattr(ssl, "PROTOCOL_TLSv1_2"), "needs TLS 1.2")
+     def test_context_setget(self):
+         # Check that the context of a connected socket can be replaced.
+         ctx1 = ssl.SSLContext(ssl.PROTOCOL_TLSv1_2)
+diff --git a/Misc/NEWS.d/next/Library/2018-03-24-15-08-24.bpo-33127.olJmHv.rst b/Misc/NEWS.d/next/Library/2018-03-24-15-08-24.bpo-33127.olJmHv.rst
+new file mode 100644
+index 0000000000..635aabbde0
+--- /dev/null
++++ b/Misc/NEWS.d/next/Library/2018-03-24-15-08-24.bpo-33127.olJmHv.rst
+@@ -0,0 +1 @@
++The ssl module now compiles with LibreSSL 2.7.1.
+diff --git a/Modules/_ssl.c b/Modules/_ssl.c
+index c54e43c2b4..5e007da858 100644
+--- a/Modules/_ssl.c
++++ b/Modules/_ssl.c
+@@ -106,6 +106,12 @@ struct py_ssl_library_code {
+ 
+ #if (OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(LIBRESSL_VERSION_NUMBER)
+ #  define OPENSSL_VERSION_1_1 1
++#  define PY_OPENSSL_1_1_API 1
++#endif
++
++/* LibreSSL 2.7.0 provides necessary OpenSSL 1.1.0 APIs */
++#if defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER >= 0x2070000fL
++#  define PY_OPENSSL_1_1_API 1
+ #endif
+ 
+ /* Openssl comes with TLSv1.1 and TLSv1.2 between 1.0.0h and 1.0.1
+@@ -152,16 +158,18 @@ struct py_ssl_library_code {
+ #define INVALID_SOCKET (-1)
+ #endif
+ 
+-#ifdef OPENSSL_VERSION_1_1
+-/* OpenSSL 1.1.0+ */
+-#ifndef OPENSSL_NO_SSL2
+-#define OPENSSL_NO_SSL2
+-#endif
+-#else /* OpenSSL < 1.1.0 */
+-#if defined(WITH_THREAD)
++/* OpenSSL 1.0.2 and LibreSSL needs extra code for locking */
++#if !defined(OPENSSL_VERSION_1_1) && defined(WITH_THREAD)
+ #define HAVE_OPENSSL_CRYPTO_LOCK
+ #endif
+ 
++#if defined(OPENSSL_VERSION_1_1) && !defined(OPENSSL_NO_SSL2)
++#define OPENSSL_NO_SSL2
++#endif
++
++#ifndef PY_OPENSSL_1_1_API
++/* OpenSSL 1.1 API shims for OpenSSL < 1.1.0 and LibreSSL < 2.7.0 */
++
+ #define TLS_method SSLv23_method
+ #define TLS_client_method SSLv23_client_method
+ #define TLS_server_method SSLv23_server_method
+@@ -227,7 +235,7 @@ SSL_SESSION_get_ticket_lifetime_hint(const SSL_SESSION *s)
+     return s->tlsext_tick_lifetime_hint;
+ }
+ 
+-#endif /* OpenSSL < 1.1.0 or LibreSSL */
++#endif /* OpenSSL < 1.1.0 or LibreSSL < 2.7.0 */
+ 
+ 
+ enum py_ssl_error {
+diff --git a/Tools/ssl/multissltests.py b/Tools/ssl/multissltests.py
+index ce5bbd8530..ba4529ae06 100755
+--- a/Tools/ssl/multissltests.py
++++ b/Tools/ssl/multissltests.py
+@@ -57,8 +57,9 @@ LIBRESSL_OLD_VERSIONS = [
+ ]
+ 
+ LIBRESSL_RECENT_VERSIONS = [
+-    "2.5.3",
+     "2.5.5",
++    "2.6.4",
++    "2.7.1",
+ ]
+ 
+ # store files in ../multissl
+-- 
+2.17.0
+

diff --git a/dev-lang/python/files/python-3.6.8-reducepath.patch b/dev-lang/python/files/python-3.6.8-reducepath.patch
new file mode 100644
index 0000000..5f39097
--- /dev/null
+++ b/dev-lang/python/files/python-3.6.8-reducepath.patch
@@ -0,0 +1,22 @@
+ONLY FOR MULTILIB RISCV!
+Handles the extra / in the libdir... -dilfridge
+
+diff -ruN Python-3.6.8.orig/Modules/getpath.c Python-3.6.8/Modules/getpath.c
+--- Python-3.6.8.orig/Modules/getpath.c	2018-12-23 22:37:14.000000000 +0100
++++ Python-3.6.8/Modules/getpath.c	2019-04-21 01:05:35.127440301 +0200
+@@ -796,6 +796,7 @@
+     if (pfound > 0) {
+         reduce(prefix);
+         reduce(prefix);
++        reduce(prefix);
+         /* The prefix is the root directory, but reduce() chopped
+          * off the "/". */
+         if (!prefix[0])
+@@ -808,6 +809,7 @@
+         reduce(exec_prefix);
+         reduce(exec_prefix);
+         reduce(exec_prefix);
++        reduce(exec_prefix);
+         if (!exec_prefix[0])
+                 wcscpy(exec_prefix, separator);
+     }

diff --git a/dev-lang/python/metadata.xml b/dev-lang/python/metadata.xml
new file mode 100644
index 0000000..8662752
--- /dev/null
+++ b/dev-lang/python/metadata.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+<maintainer type="project">
+	<email>python@g.o</email>
+	<name>Python</name>
+</maintainer>
+<use>
+	<flag name="bluetooth">Build Bluetooth protocol support in socket module</flag>
+	<flag name="threads">Enable threading support. (DON'T DISABLE THIS UNLESS YOU KNOW WHAT YOU'RE DOING)</flag>
+	<flag name="wininst">Install Windows executables required to create an executable installer for MS Windows.</flag>
+</use>
+</pkgmetadata>

diff --git a/dev-lang/python/python-3.6.8-r1.ebuild b/dev-lang/python/python-3.6.8-r1.ebuild
new file mode 100644
index 0000000..b362845
--- /dev/null
+++ b/dev-lang/python/python-3.6.8-r1.ebuild
@@ -0,0 +1,351 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+WANT_LIBTOOL="none"
+
+inherit autotools flag-o-matic pax-utils python-utils-r1 toolchain-funcs
+
+MY_P="Python-${PV}"
+PATCHSET_VERSION="3.6.8"
+
+DESCRIPTION="An interpreted, interactive, object-oriented programming language"
+HOMEPAGE="https://www.python.org/"
+SRC_URI="https://www.python.org/ftp/python/${PV}/${MY_P}.tar.xz
+	https://dev.gentoo.org/~floppym/python/python-gentoo-patches-${PATCHSET_VERSION}.tar.xz"
+
+LICENSE="PSF-2"
+SLOT="3.6/3.6m"
+KEYWORDS="~riscv"
+IUSE="bluetooth build examples gdbm hardened ipv6 libressl +ncurses +readline sqlite +ssl test +threads tk wininst +xml"
+RESTRICT="!test? ( test )"
+
+# Do not add a dependency on dev-lang/python to this ebuild.
+# If you need to apply a patch which requires python for bootstrapping, please
+# run the bootstrap code on your dev box and include the results in the
+# patchset. See bug 447752.
+
+RDEPEND="app-arch/bzip2:0=
+	app-arch/xz-utils:0=
+	>=sys-libs/zlib-1.1.3:0=
+	virtual/libffi:=
+	virtual/libintl
+	gdbm? ( sys-libs/gdbm:0=[berkdb] )
+	ncurses? ( >=sys-libs/ncurses-5.2:0= )
+	readline? ( >=sys-libs/readline-4.1:0= )
+	sqlite? ( >=dev-db/sqlite-3.3.8:3= )
+	ssl? (
+		!libressl? ( dev-libs/openssl:0= )
+		libressl? ( dev-libs/libressl:0= )
+	)
+	tk? (
+		>=dev-lang/tcl-8.0:0=
+		>=dev-lang/tk-8.0:0=
+		dev-tcltk/blt:0=
+		dev-tcltk/tix
+	)
+	xml? ( >=dev-libs/expat-2.1:0= )
+	!!<sys-apps/sandbox-2.6-r1"
+# bluetooth requires headers from bluez
+DEPEND="${RDEPEND}
+	bluetooth? ( net-wireless/bluez )
+	test? ( app-arch/xz-utils[extra-filters(+)] )
+	virtual/pkgconfig
+	!sys-devel/gcc[libffi(-)]"
+RDEPEND+=" !build? ( app-misc/mime-types )"
+PDEPEND=">=app-eselect/eselect-python-20140125-r1"
+
+S="${WORKDIR}/${MY_P}"
+PYVER=${SLOT%/*}
+
+src_prepare() {
+	# Ensure that internal copies of expat, libffi and zlib are not used.
+	rm -fr Modules/expat
+	rm -fr Modules/_ctypes/libffi*
+	rm -fr Modules/zlib
+
+	local PATCHES=(
+		"${WORKDIR}/patches"
+	)
+
+	default
+
+	eapply "${FILESDIR}/${P}-reducepath.patch" # only for multilib riscv
+
+	sed -i -e "s:@@GENTOO_LIBDIR@@:$(get_libdir):g" \
+		Lib/distutils/command/install.py \
+		Lib/distutils/sysconfig.py \
+		Lib/site.py \
+		Lib/sysconfig.py \
+		Lib/test/test_site.py \
+		Makefile.pre.in \
+		Modules/Setup.dist \
+		Modules/getpath.c \
+		configure.ac \
+		setup.py || die "sed failed to replace @@GENTOO_LIBDIR@@"
+
+	eautoreconf
+}
+
+src_configure() {
+	local disable
+	# disable automagic bluetooth headers detection
+	use bluetooth || export ac_cv_header_bluetooth_bluetooth_h=no
+	use gdbm     || disable+=" gdbm"
+	use ncurses  || disable+=" _curses _curses_panel"
+	use readline || disable+=" readline"
+	use sqlite   || disable+=" _sqlite3"
+	use ssl      || export PYTHON_DISABLE_SSL="1"
+	use tk       || disable+=" _tkinter"
+	use xml      || disable+=" _elementtree pyexpat" # _elementtree uses pyexpat.
+	export PYTHON_DISABLE_MODULES="${disable}"
+
+	if ! use xml; then
+		ewarn "You have configured Python without XML support."
+		ewarn "This is NOT a recommended configuration as you"
+		ewarn "may face problems parsing any XML documents."
+	fi
+
+	if [[ -n "${PYTHON_DISABLE_MODULES}" ]]; then
+		einfo "Disabled modules: ${PYTHON_DISABLE_MODULES}"
+	fi
+
+	if [[ "$(gcc-major-version)" -ge 4 ]]; then
+		append-flags -fwrapv
+	fi
+
+	filter-flags -malign-double
+
+	# https://bugs.gentoo.org/show_bug.cgi?id=50309
+	if is-flagq -O3; then
+		is-flagq -fstack-protector-all && replace-flags -O3 -O2
+		use hardened && replace-flags -O3 -O2
+	fi
+
+	# Export CXX so it ends up in /usr/lib/python3.X/config/Makefile.
+	tc-export CXX
+
+	# Set LDFLAGS so we link modules with -lpython3.2 correctly.
+	# Needed on FreeBSD unless Python 3.2 is already installed.
+	# Please query BSD team before removing this!
+	append-ldflags "-L."
+
+	local dbmliborder
+	if use gdbm; then
+		dbmliborder+="${dbmliborder:+:}gdbm"
+	fi
+
+	local myeconfargs=(
+		--with-fpectl
+		--enable-shared
+		$(use_enable ipv6)
+		$(use_with threads)
+		--infodir='${prefix}/share/info'
+		--mandir='${prefix}/share/man'
+		--with-computed-gotos
+		--with-dbmliborder="${dbmliborder}"
+		--with-libc=
+		--enable-loadable-sqlite-extensions
+		--without-ensurepip
+		--with-system-expat
+		--with-system-ffi
+	)
+
+	OPT="" econf "${myeconfargs[@]}"
+
+	if use threads && grep -q "#define POSIX_SEMAPHORES_NOT_ENABLED 1" pyconfig.h; then
+		eerror "configure has detected that the sem_open function is broken."
+		eerror "Please ensure that /dev/shm is mounted as a tmpfs with mode 1777."
+		die "Broken sem_open function (bug 496328)"
+	fi
+}
+
+src_compile() {
+	# Ensure sed works as expected
+	# https://bugs.gentoo.org/594768
+	local -x LC_ALL=C
+
+	emake CPPFLAGS= CFLAGS= LDFLAGS=
+
+	# Work around bug 329499. See also bug 413751 and 457194.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E python
+	else
+		pax-mark m python
+	fi
+}
+
+src_test() {
+	# Tests will not work when cross compiling.
+	if tc-is-cross-compiler; then
+		elog "Disabling tests due to crosscompiling."
+		return
+	fi
+
+	# Skip failing tests.
+	local skipped_tests="gdb"
+
+	for test in ${skipped_tests}; do
+		mv "${S}"/Lib/test/test_${test}.py "${T}"
+	done
+
+	# bug 660358
+	local -x COLUMNS=80
+
+	local -x PYTHONDONTWRITEBYTECODE=
+
+	emake test EXTRATESTOPTS="-u-network" CPPFLAGS= CFLAGS= LDFLAGS= < /dev/tty
+	local result=$?
+
+	for test in ${skipped_tests}; do
+		mv "${T}/test_${test}.py" "${S}"/Lib/test
+	done
+
+	elog "The following tests have been skipped:"
+	for test in ${skipped_tests}; do
+		elog "test_${test}.py"
+	done
+
+	elog "If you would like to run them, you may:"
+	elog "cd '${EPREFIX}/usr/$(get_libdir)/python${PYVER}/test'"
+	elog "and run the tests separately."
+
+	if [[ ${result} -ne 0 ]]; then
+		die "emake test failed"
+	fi
+}
+
+src_install() {
+	local libdir=${ED}/usr/$(get_libdir)/python${PYVER}
+
+	emake DESTDIR="${D}" altinstall
+
+	sed \
+		-e "s/\(CONFIGURE_LDFLAGS=\).*/\1/" \
+		-e "s/\(PY_LDFLAGS=\).*/\1/" \
+		-i "${libdir}/config-${PYVER}"*/Makefile || die "sed failed"
+
+	# Fix collisions between different slots of Python.
+	rm -f "${ED}usr/$(get_libdir)/libpython3.so"
+
+	# Cheap hack to get version with ABIFLAGS
+	local abiver=$(cd "${ED}usr/include"; echo python*)
+	if [[ ${abiver} != python${PYVER} ]]; then
+		# Replace python3.X with a symlink to python3.Xm
+		rm "${ED}usr/bin/python${PYVER}" || die
+		dosym "${abiver}" "/usr/bin/python${PYVER}"
+		# Create python3.X-config symlink
+		dosym "${abiver}-config" "/usr/bin/python${PYVER}-config"
+		# Create python-3.5m.pc symlink
+		dosym "python-${PYVER}.pc" "/usr/$(get_libdir)/pkgconfig/${abiver/${PYVER}/-${PYVER}}.pc"
+	fi
+
+	# python seems to get rebuilt in src_install (bug 569908)
+	# Work around it for now.
+	if has_version dev-libs/libffi[pax_kernel]; then
+		pax-mark E "${ED}usr/bin/${abiver}"
+	else
+		pax-mark m "${ED}usr/bin/${abiver}"
+	fi
+
+	use sqlite || rm -r "${libdir}/"{sqlite3,test/test_sqlite*} || die
+	use tk || rm -r "${ED}usr/bin/idle${PYVER}" "${libdir}/"{idlelib,tkinter,test/test_tk*} || die
+
+	use threads || rm -r "${libdir}/multiprocessing" || die
+	use wininst || rm "${libdir}/distutils/command/"wininst-*.exe || die
+
+	dodoc "${S}"/Misc/{ACKS,HISTORY,NEWS}
+
+	if use examples; then
+		insinto /usr/share/doc/${PF}/examples
+		find "${S}"/Tools -name __pycache__ -print0 | xargs -0 rm -fr
+		doins -r "${S}"/Tools
+	fi
+	insinto /usr/share/gdb/auto-load/usr/$(get_libdir) #443510
+	local libname=$(printf 'e:\n\t@echo $(INSTSONAME)\ninclude Makefile\n' | \
+		emake --no-print-directory -s -f - 2>/dev/null)
+	newins "${S}"/Tools/gdb/libpython.py "${libname}"-gdb.py
+
+	newconfd "${FILESDIR}/pydoc.conf" pydoc-${PYVER}
+	newinitd "${FILESDIR}/pydoc.init" pydoc-${PYVER}
+	sed \
+		-e "s:@PYDOC_PORT_VARIABLE@:PYDOC${PYVER/./_}_PORT:" \
+		-e "s:@PYDOC@:pydoc${PYVER}:" \
+		-i "${ED}etc/conf.d/pydoc-${PYVER}" "${ED}etc/init.d/pydoc-${PYVER}" || die "sed failed"
+
+	# for python-exec
+	local vars=( EPYTHON PYTHON_SITEDIR PYTHON_SCRIPTDIR )
+
+	# if not using a cross-compiler, use the fresh binary
+	if ! tc-is-cross-compiler; then
+		local -x PYTHON=./python
+		local -x LD_LIBRARY_PATH=${LD_LIBRARY_PATH+${LD_LIBRARY_PATH}:}${PWD}
+	else
+		vars=( PYTHON "${vars[@]}" )
+	fi
+
+	python_export "python${PYVER}" "${vars[@]}"
+	echo "EPYTHON='${EPYTHON}'" > epython.py || die
+	python_domodule epython.py
+
+	# python-exec wrapping support
+	local pymajor=${PYVER%.*}
+	mkdir -p "${D}${PYTHON_SCRIPTDIR}" || die
+	# python and pythonX
+	ln -s "../../../bin/${abiver}" \
+		"${D}${PYTHON_SCRIPTDIR}/python${pymajor}" || die
+	ln -s "python${pymajor}" \
+		"${D}${PYTHON_SCRIPTDIR}/python" || die
+	# python-config and pythonX-config
+	# note: we need to create a wrapper rather than symlinking it due
+	# to some random dirname(argv[0]) magic performed by python-config
+	cat > "${D}${PYTHON_SCRIPTDIR}/python${pymajor}-config" <<-EOF || die
+		#!/bin/sh
+		exec "${abiver}-config" "\${@}"
+	EOF
+	chmod +x "${D}${PYTHON_SCRIPTDIR}/python${pymajor}-config" || die
+	ln -s "python${pymajor}-config" \
+		"${D}${PYTHON_SCRIPTDIR}/python-config" || die
+	# 2to3, pydoc, pyvenv
+	ln -s "../../../bin/2to3-${PYVER}" \
+		"${D}${PYTHON_SCRIPTDIR}/2to3" || die
+	ln -s "../../../bin/pydoc${PYVER}" \
+		"${D}${PYTHON_SCRIPTDIR}/pydoc" || die
+	ln -s "../../../bin/pyvenv-${PYVER}" \
+		"${D}${PYTHON_SCRIPTDIR}/pyvenv" || die
+	# idle
+	if use tk; then
+		ln -s "../../../bin/idle${PYVER}" \
+			"${D}${PYTHON_SCRIPTDIR}/idle" || die
+	fi
+}
+
+pkg_preinst() {
+	if has_version "<${CATEGORY}/${PN}-${PYVER}" && ! has_version ">=${CATEGORY}/${PN}-${PYVER}_alpha"; then
+		python_updater_warning="1"
+	fi
+}
+
+eselect_python_update() {
+	if [[ -z "$(eselect python show)" || ! -f "${EROOT}usr/bin/$(eselect python show)" ]]; then
+		eselect python update
+	fi
+
+	if [[ -z "$(eselect python show --python${PV%%.*})" || ! -f "${EROOT}usr/bin/$(eselect python show --python${PV%%.*})" ]]; then
+		eselect python update --python${PV%%.*}
+	fi
+}
+
+pkg_postinst() {
+	eselect_python_update
+
+	if [[ "${python_updater_warning}" == "1" ]]; then
+		ewarn "You have just upgraded from an older version of Python."
+		ewarn
+		ewarn "Please adjust PYTHON_TARGETS (if so desired), and run emerge with the --newuse or --changed-use option to rebuild packages installing python modules."
+	fi
+}
+
+pkg_postrm() {
+	eselect_python_update
+}