python3: upgrade to 3.7.2

I took the same approach as the recent perl upgrade: write recipe from scratch,
taking the pieces from the old recipe only when they were proven to be necessary.

The pgo, manifest and ptest features are all preserved.

New features:

- native and target recipes are now unified into one recipe

- check_build_completeness.py runs right after do_compile() and verifies that
all optional modules have been built (a notorious source of regressions)

- a new approach to sysconfig.py and distutils/sysconfig.py returning values
appropriate for native or target builds: we copy the configuration file to a
separate folder, add that folder to sys.path (through environment variable
that differs between native and target builds), and point python to the file
through another environment variable.

There were a few other patches where it was difficult to decide if the patch
is still relevant, and how to test that it works correctly; please add those
as-needed by testing the new python.

(From OE-Core rev: 02714c105426b0d687620913c1a7401b386428b6)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/meta/recipes-devtools/python/python3/check_build_completeness.py b/meta/recipes-devtools/python/python3/check_build_completeness.py
new file mode 100755
index 0000000000..a1eace3f57
--- /dev/null
+++ b/meta/recipes-devtools/python/python3/check_build_completeness.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+import sys
+logfile = open(sys.argv[1]).read()
+
+necessary_bits = logfile.find("The necessary bits to build these optional modules were not found")
+to_find_bits = logfile.find("To find the necessary bits, look in setup.py in detect_modules() for the module's name.")
+if necessary_bits != -1:
+    print("%s" %(logfile[necessary_bits:to_find_bits]))
+
+failed_to_build = logfile.find("Failed to build these modules:")
+if failed_to_build != -1:
+    failed_to_build_end = logfile.find("\n\n", failed_to_build)
+    print("%s" %(logfile[failed_to_build:failed_to_build_end]))
+
+if necessary_bits != -1 or failed_to_build != -1:
+    sys.exit(1)
+